AU2004309164B2 - Triazole derivatives as vasopressin antagonists - Google Patents

Description

WO 2005/063754 PCT/IB2004/004059 TRIAZOLE DERIVATIVES AS VASOPRESSIN ANTAGONISTS This invention relates to triazole derivatives and to processes for the preparation of, intermediates used in the preparation of, compositions containing and the uses of, such derivatives.

The triazole derivatives of the present invention are vasopressin antagonists. In particular they are antagonists of the Via receptor and have a number of therapeutic applications, particularly in the treatment of dysmenorrhoea (primary and secondary).

There is a high unmet need in the area of menstrual disorders and it is estimated that up to 90% of all menstruating women are affected to some degree. Up to 42% of women miss work or other activities due to menstrual pain and it has been estimated that around 600 million work hours a year are lost in the US as a result {Coco, A.S.

(1999). Primary dysmenorrhoea. [Review] [30 refs]. American Family Physician, 489-96.}.

Menstrual pain in the lower abdomen is caused by myometrial hyperactivity and reduced uterine blood flow. These pathophysiological changes result in abdominal pain that radiates out to the back and legs. This may result in women feeling nauseous, having headaches and suffering from insomnia. This condition is called dysmenorrhoea and can be classified as either primary or secondary dysmenorrhoea.

Primary dysmenorrhoea is diagnosed when no abnormality causing the condition is identified. This affects up to 50% of the female population {Coco, A.S. (1999). Primary dysmenorrhoea. [Review] [30 refs]. American Family Physician, 60, 489-96.; Schroeder, B. Sanfilippo, J.S. (1999). Dysmenorrhoea and pelvic pain in adolescents. [Review] [78 refs]. Pediatric Clinics of North America, 46, 555-71}. Where an underlying gynaecological disorder is present, such as endometriosis, pelvic inflammatory disease (PID), fibroids or cancers, secondary dysmenorrhoea will be diagnosed. Secondary dysmenorrhoea is diagnosed in only approximately 25% of women suffering from dysmenorrhoea. Dysmenorrhoea can occur in conjunction with menorrhagia, which accounts for around 12% of referrals to gynaecology outpatients departments.

Currently, women suffering from primary dysmenorrhoea are treated with non-steroidal anti-inflammatory drugs (NSAID's) or the oral contraceptive pill. In cases of secondary dysmenorrhoea surgery may be undertaken to correct the underlying gynaecological disorder.

WO 2005/063754 PCT/IB2004/004059 -2- Women suffering from dysmenorrhoea have circulating vasopressin levels which are greater than those observed in healthy women at the same time of the menstrual cycle.

Inhibition of the pharmacological actions of vasopressin, at the uterine vasopressin receptor, may prevent dysmenorrhoea.

The compounds of the present invention are therefore potentially useful in the treatment of a wide range of disorders, particularly aggression, Alzheimer's disease, anorexia nervosa, anxiety, anxiety disorder, asthma, atherosclerosis, autism, cardiovascular disease (including angina, atherosclerosis, hypertension, heart failure, edema, hypernatremia), cataract, central nervous system disease, cerebrovascular ischemia, cirrhosis, cognitive disorder, Cushing's disease, depression, diabetes mellitus, dysmenorrhoea (primary and secondary), emesis (including motion sickness), endometriosis, gastrointestinal disease, glaucoma, gynaecological disease, heart disease, intrauterine growth retardation, inflammation (including rheumatoid arthritis), ischemia, ischemic heart disease, lung tumor, micturition disorder, mittlesmerchz, neoplasm, nephrotoxicity, non-insulin dependent diabetes, obesity, obsessive/compulsive disorder, ocular hypertension, preclampsia, premature ejaculation, premature (preterm) labour, pulmonary disease, Raynaud's disease, renal disease, renal failure, male or female sexual dysfunction, septic shock, sleep disorder, spinal cord injury, thrombosis, urogenital tract infection or urolithiasis.

Particularly of interest are the following diseases or disorders: anxiety, cardiovascular disease (including angina, atherosclerosis, hypertension, heart failure, edema, hypernatremia), dysmenorrhoea (primary and secondary), endometriosis, emesis (including motion sickness), intrauterine growth retardation, inflammation (including rheumatoid arthritis), mittlesmerchz, preclampsia, premature ejaculation, premature (preterm) labour and Raynaud's disease.

The compounds of the invention, and their pharmaceutically acceptable salts and solvates, have the advantage that they are selective inhibitors of the Via receptor (and so are likely to have reduced side effects), they may have a more rapid onset of action, they may be more potent, they may be longer acting, they may have greater bioavailability or they my have other more desirable properties than the compounds of the prior art.

According to the present invention there is provided a compound of formula

N

N©N

5 a represents a number selected from 0 to 6; 0 b represents a number selected from 0 to 6;

(I)

\D or a pharmaceutically acceptable derivative thereof, wherein: SX represents -[CH2]a-R or -[CH2]-O-[CH2]b-R; Cc, 5 a represents a number selected from 0 to 6; 0b represents a number selected from 0 to 6; C R represents H, CF 3 or Het; Het represents a 5- or 6-membered saturated, partially saturated or aromatic heterocyclic ring comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms, optionally substituted with one or more groups independently selected from W; Y and Y' independently represent one or more substituents independently selected from -[O]c-[CH 2 which may be the same or different at each occurrence; c at each occurrence independently represents a number selected from 0 or 1; s1 d at each occurrence independently represents a number selected from 0 to 6; R' at each occurrence independently represents H, halo, CF 3 CN or Het Het' at each occurrence independently represents a 5- or 6-membered unsaturated heterocyclic ring, comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms; V represents a direct link or Ring A represents a 5- to 7-membered saturated heterocyclic ring comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms, or it represents a phenylene group; ring A being optionally substituted with one or more groups selected from Ci- 6 alkyl, phenyl or hydroxy; Q represents a direct link or -N(R 2

R

2 represents hydrogen or C 16 alkyl; AH21(1006039 I):AAK WO 200n5/063754 PCT/IBT2004/n004059 -4- Z represents -[O]e-[CH2]R 3 a phenyl ring (optionally fused to a benzene ring or Het 2 and the group as a whole being optionally substituted with one or more groups independently selected from or Het 3 (optionally fused to an benzene ring or Het 4 and the group as a whole being optionally substituted with one or more groups independently selected from W);

R

3 represents C1- 6 alkyl (optionally substituted with one or more groups independently selected from C3.6 cycloalkyl, C3-6 cycloalkenyl, phenyl (optionally substituted with one or more groups independently selected from Het 5 or NR 4

R

5 e represents a number selected from 0 or 1; f represents a number selected from 0 to 6; Het 2 and Het 5 independently represent a 5- or 6-membered saturated, partially saturated or aromatic heterocyclic ring, comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms, optionally substituted with one or more groups selected from W; Het 3 represents a 4 to 6-membered saturated, partially saturated or aromatic heterocyclic ring, comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms, optionally substituted with one or more groups selected from W; Het 4 represents a 6-membered aromatic heterocyclic ring, comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms, optionally substituted with one or more groups selected from W;

R

4 and R 5 independently represent hydrogen, C 1 6 alkyl, C 1 .6 alkyloxy, C3-8 cycloalkyl (optionally fused to Ca cycloalkyl) or Het 6

R

4 and R 5 being optionally independently substituted with one of more groups selected from C1- alkyl, C1-6 alkyloxy, C3- cycloalkyl (optionally fused to C3-8 cycloalkyl), or phenyl; Het 6 represents a 5- or 6-membered saturated, partially saturated or aromatic heterocyclic ring, comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms, optionally substituted with one or more groups selected from W; W independently at each occurrence represents halo, [O]gR 6

SO

2

R

6

SR

6

SO

2

NR

6

R

7 [O]h[CH2]iCF 3 [O]jCHF 2 phenyl (optionally substituted with halo, C1.- alkyl or C1i.

alkyloxy), CN, phenoxy (optionally substituted with halo), OH, benzyl, NR 6

R

7

NCOR

6 benzyloxy, oxo, CONHR 6

NSO

2

R

6

R

7

COR

6 Cl.

1 alkylene-NCOR 7 Het 7 WO 200n5/063754 PCT/IBT2004/n004059

R

6 represents hydrogen, C 1 6 alkyl, C 3 _6cycloalkyl, C3-6 cycloalkenyl or Ci.alkylene- O-Cl 1 6 alkyl;

R

7 represents hydrogen or C 1 6alkyl; i represents a number selected from 0 to 6 h represents a number selected from 0 or 1; g represents a number selected from 0 or 1; j represents a number selected from 0 or 1; Het 7 represents a 5- or 6-membered saturated, partially saturated or aromatic heterocyclic ring, comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms, optionally substituted by R 6 and/or R 7 and/or an oxo group.

In an alternative embodiment there is provided a compound of formula N

N

A

N

o

Y

or a pharmaceutically acceptable derivative thereof, wherein: X represents -[CH2]a-R or -[CH 2 ]a-O-[CH 2 ]b-R; a represents a number selected from 0 to 6; b represents a number selected from 0 to 6; R represents H, CF 3 or Het; Het represents a 5- or 6-membered heterocyclic ring comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms; Y represents 2 ]d-R 1 Y' represents 2 ]d-R 1 1 c and c' independently represent a number selected from 0 or 1; d and d' independently represent a number selected from 0 to 6;

R

1 and R' independently represent H, halo, CF 3 or Het 1 Het 1 represents a 5- or 6-membered unsaturated heterocyclic ring comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms; WO 200n5/063754 PCT/IBT2004/n004059 -6- Ring A represents a 5- or 6-membered saturated heterocyclic ring comprising at least one nitrogen atom; Z represents -[O]e-[CH 2 ]rR 2 a phenyl ring (optionally fused to a phenyl ring or a 5- or 6membered saturated, partially unsaturated or aromatic heterocyclic ring, and/or optionally substituted with one or more groups independently selected from or a 6membered aromatic heterocyclic ring (optionally fused to an phenyl ring or a 6membered aromatic heterocyclic ring, and/or optionally substituted with one or more groups independently selected from W);

R

2 represents C 1 -6 alkyl or C 3 6 cycloalkyl; e represents a number selected from 0 or 1; f represents a number selected from 0 to 6; W represents halo, [O]gR 3 S0 2

R

3

SR

3

SO

2

NR

3

R

4 [O]h[CH 2 ]iCF 3

OCHF

2 phenyl, CN, phenoxy (optionally substituted with halo), OH, benzyl, NCOR 3 benzyloxy, oxy,

CONHR

3

NSO

2

R

3

R

4

COR

3 C1.

6 alkylene-NCOR 3 Het 2

R

3 represents hydrogen, C1-6alkyl, C3_ 6 cycloalkyl or C 1 alkylene-O-C.alkyl;

R

4 represents hydrogen or C-1.alkyl; i represents a number selected from 0 to 6 h represents a number selected from 0 or 1; g represents a number selected from 0 or 1; Het 2 represents a 5- or 6-membered saturated, partially unsaturated or aromatic heterocyclic group comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms, the heterocyclic group being optionally substituted by R 3 and/or R 4 andlor an oxy group.

In the above definitions, halo means fluoro, chloro, bromo or iodo. Alkyl, alkylene and alkyloxy groups, containing the requisite number of carbon atoms, can be unbranched or branched. Examples of alkyl include methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, sec-butyl and t-butyl. Examples of alkyloxy include methoxy, ethoxy, n-propoxy, ipropoxy, n-butoxy, I-butoxy, sec-butoxy and t-butoxy. Examples of alkylene include methylene, 1,1-ethylene, 1,2-ethylene, 1,1-propylene, 1,2-propylene, 1,3-propylene and 2,2-propylene. Het represents a heterocyclic group, examples of which include tetrahydrofuranyl, tetrahydrothiophenyl, pyrrolidinyl, tetrahydropyranyl, tetrahydrothiopyranyl, piperidinyl, 1,4-dioxanyl, 1,4-oxathianyl, morpholinyl, 1,4-dithianyl, piperazinyl, 1,4-azathianyl, 3,4-dihydro-2H-pyranyl, 5,6-dihydro-2H-pyranyl, 2H-pyranyl, 1,2,3,4-tetrahydropyridinyl, 1,2,5,6-tetrahydropyridinyl, pyrrolyl, furanyl, thiophenyl, WO 2005/063754 PCT/IB2004/004059 -7pyrazolyl, imidazolyl, isoxazolyl, oxazolyl, isothiazolyl, thiazolyl, 1,2,3-triazolyl, 1,3,4triazolyl, 1-oxa-2,3-diazolyl, 1-oxa-2,4-diazolyl, 1-oxa-2,5-diazolyl, 1-oxa-3,4-diazolyl, 1thia-2,3-diazolyl, 1-thia-2,4-diazolyl, 1-thia-2,5-diazolyl, 1-thia-3,4-diazolyl, tetrazolyl, pyridinyl, pyridazinyl, pyrimidinyl and pyrazinyl.

A preferred compound is one in which X represents CH 2 0CH 3 More preferred is a compound in which X represents -[CH 2 ]aR.

A preferred compound is one in which a represents a number selected from 0 to 5. More preferred is a compound in which a represents a number selected from 0 to 4. Still more preferred is a compound in which a represents a number selected from 0 to 3. Still more preferred is a compound in which a represents a number selected from 0 to 2. Most preferred is a compound in which a represents the number 1.

A preferred compound is one in which R represents H. A more preferred compound is one in which R represents Het. Stoll more preferred is a compound in which R represents triazolyl A preferred compound is one in which Y represents one or two substituents. A more preferred compound is one in which Y represents a single substituent.

A preferred compound is one in which Y represents halo. A more preferred compound is one in which Y represents chloro and/or fluoro.

A preferred compound is one in which V represents a direct link. A preferred compound is one in which Q is a direct link. A more preferred compound is one in which both V and Q represent a direct link.

A preferred compound is one in which Ring A contains 2 nitrogen atoms. A more preferred compound is one in which Ring A contains 1 nitrogen atom.

A preferred compound is one in which Ring A represents a 5-membered ring. A more preferred compound is one in which Ring A represents a 6-membered ring. A still more preferred compound is one in which Ring A represents piperidinylene.

WO 2005/063754 PCTfIB2004/004059 -8- A preferred compound is one in which Ring A is attached to V via a nitrogen atom. A more preferred compound is one in which Ring A is attached to Q via a nitrogen atom.

A preferred compound is one in which Ring A is attached to both Q and V via a nitrogen atom.

A preferred compound is one in which Z represents Het 3 Het 3 may represent an optionally substituted group selected from indazolyl, indolyl, indenyi, pyrazoyi, piperidinyl, pyridinyl, pyrimidinyl, pyrrolyl, thiazolyl, benzothienyl, benzothiazolyl, quinolinyl, benzoxazinyl, isoxazolyl, imidazolyl, fury], benzofuryl, cinnolinyl, morpholinyl, chromenyl, or derivatives thereof. A more preferred compound is one in which Z represents phenyl.

A preferred compound is one in which Z is mono or di substituted. A more preferred compound is one in which Z is mono substituted.

A preferred compound is one in which Z is substituted by tri-fluoromethyl. A more preferred compound is one in which Z is substituted by halo. A more preferred compound is one in which Z is substituted by chioro and/or fluoro.

Specific preferred compounds according to the invention are those listed in the Examples section below, and the pharmaceutically acceptable salts thereof. In particular: (3-Chloro-phenyl)-{4-[4-(4-chloro-phenyl )-5-I1 ,2,3]triazol-2-ylmethyl-4H- [1 ,2,4]triazol-3-yI]-piperidin-1 -yl}-methanone; (4-Chloro-phenyl)-{4-[4-(4-ch Ioro-phenyl)-5-[1 3]triazol-2-ylmethyl-4H- 2,4]triazoi-3-yI]-p iperid in-1 -yl}-metha none; (5-Chloro-2-fluoro-phenyl )-{4-[4-(4-chloro-phenyl)-5-[1 ,2 ,3]triazol-2-ylmethyl-4H- (1 ,2,4]triazol-3-yl]-piperidin-1 -yI-methanone; {4-[4-(4-Chloro-phenyl)-5-[1 ,2 ,3]triazol-2-ylmethyl-4H-[1 ,2,4]triazol-3-yl]-piperidii-1 Ioro-phenyl)-5-[1 ,2,3]triazol-2-ylmethyl-4H-[1 ,2,4]triazol-3-yi]-piperidin-1 yI}-(3-fI uoro-phenyl)-methanone; {4-[4-(4-Chloro-phenyl)-5-[1 ,2,3]triazol-2-ylmethyl-4H-[1 ,2,4]triazol-3-y]-piperidin-1 yl-(2,3-difluoro-phenyl)-methanone; (3-Chloro-2-fluoro-phenyl)-{4-[4-(4-chloro-phenyl)-5-[1 ,2,3]triazol-2-ylmethyl-4H- [1 ,2,4]triazol-3-yl]-piperidin-1 -yl}-methanone; WO 2005/063754 PCT11R2004I004059 -9- (3-Chloro-4-fluoro-phenyl)-{4-[4-(4-chloro-phenyl)-5-[l ,2,3]triazol-2-ylmethyl-4H- [1 ,2,4]triazol-3-yl]-piperidin-l -yll-methanone; {4-[4-(4-Ghloro-phenyl)-5-[1 3]triazol-2-yl methyl-4H-I1 ,2,4]triazol-3-yl]-piperid in-I yll-(4-trifl uoromethyl-phenyl)-metha none; {4-[4-(4-Chloro-phenyl)-5-[1 ,2,3]triazol-2-ylmethyl-4H-[1 ,2 ,4]triazol-3-yI]-piperidin-1 yl-(3-trifl uoromethyl-phe nyl)-metha none; {4-[4-(4-Chloro-phenyl)-5-[l ,2,3]triazol-2-yl methyl-4H-[l 1,2,4]triazol-3-yl]-p ipe rid in-i1 yl-(2-trifl uoromethyl-phenyl)-metha none; uoro-phenyl)-{4-[4-(4-chloro-phenyl)-5-[1 ,2 ,3]triazol-2-ylmethyl-4H- [1 ,2,4]triazol-3-yl]-piperidin-1 -yl-methanone; {4-[4-(4-Chloro-phenyl)-5-[l ,2,3]triazol-2-ylmethyl-4H-[1 ,2,4]triazol-3-yl]-piperidin-l yll-(4-d ifluoromethyl-phenyl)-metha none-, {4-[4-(4-Chloro-phenyl)-5-[1 ,2 ,3]triazol-2-ylmethyl-4H-[1 ,2,4]triazol-3-yI]-piperidin-l ylj-(l H-indazol-3-yI)-metha none; and pharmaceutically acceptable derivatives thereof.

Pharmaceutically acceptable derivatives of the compounds of formula according to the invention include salts, solvates, complexes, polymorphs, prodrugs, stereoisomers, geometric isomers, tautomeric forms, and isotopic variations of compounds of formula Preferably, pharmaceutically acceptable derivatives of compounds of formula (I) comprise salts, solvates, esters and amides of the compounds of formula More preferably, pharmaceutically acceptable derivatives of compounds of formula are salts and solvates.

The pharmaceutically acceptable salts of the compounds of formula include the acid addition and base salts thereof.

Suitable acid addition salts are formed from acids which form non-toxic salts. Examples include the acetate, aspartate, benzoate, besylate, bicarbonate/carbonate, bisulphate, borate, camsylate, citrate, edisylate, esylate, formate, fumarate, gluceptate, gluconate, glucuronate, hexafl uorop hosp hate, hibenzate, hydrochloride/chloride, hydrobromide/bromide, hydroiodide/iodide, isethionate, D- and L-lactate, malate, maleate, malonate, mesylate, methylsulphate, naphthylate, 2-napsylate, nicotinate, nitrate, orotate, oxalate, palmitate, palmoate, phosphate, hydrogen phosphate, dihydrogen phosphate, saccharate, stearate, succinate, sulphate, 0- and L- tartrate, WO 200n5/063754 PCT/IBT2004/n004059 tosylate and trifluoroacetate salts. A particularly suitable salt is the besylate derivative of the compounds of the present invention.

Suitable base salts are formed from bases, which form non-toxic salts. Examples include the aluminium, arginine, benzathine, calcium, choline, diethylamine, diolamine, glycine, lysine, magnesium, meglumine, olamine, potassium, sodium, tromethamine and zinc salts.

For a review on suitable salts see Stahl and Wermuth, Handbook of Pharmaceutical Salts: Properties, Selection and Use, Wiley-VCH, Weinheim, Germany (2002).

A pharmaceutically acceptable salt of a compound of formula may be readily prepared by mixing together solutions of the compound of formula and the desired acid or base, as appropriate. The salt may precipitate from solution and be collected by filtration or may be recovered by evaporation of the solvent. The degree of ionisation in the salt may vary from completely ionised to almost non-ionised.

The compounds of the invention may exist in both unsolvated and solvated forms. The term "solvate" is used herein to describe a molecular complex comprising the compound of the invention and one or more pharmaceutically acceptable solvent molecules, for example, ethanol. The term "hydrate" is employed when said solvent is water.

Included within the scope of the invention are complexes such as clathrates, drug-host inclusion complexes wherein, in contrast to the aforementioned solvates, the drug and host are present in stoichiometric or non-stoichiometric amounts. Also included are complexes of the drug containing two or more organic and/or inorganic components what may be in stoichiometric or non-stoichiometric amounts. The resulting complexes may be ionised, partially ionised, or non-ionised. For a review of such complexes, see J Pharm Sci, 64 1269-1288 by Haleblian (August 1975).

Hereinafter all references to compounds of formula and pharmaceutically acceptable derivatives include references to salts, solvates and complexes thereof and to solvates and complexes of salts thereof.

The compounds of the invention include compounds of formula as hereinbefore defined, polymorphs, prodrugs, and isomers thereof (including optical, geometric and WO 2005/063754 PCT/IB2004/004059 -11tautomeric isomers) as hereinafter defined and isotopically-labelled compounds of formula As stated, the invention includes all polymorphs of the compounds of formula as hereinbefore defined.

Also within the scope of the invention are so-called "prodrugs" of the compounds of formula Thus certain derivatives of compounds of formula which may have little or no pharmacological activity themselves can, when administered into or onto the body, be converted into compounds of formula having the desired activity, for example, hydrolytic cleavage. Such derivatives are referred to as "prodrugs". Further information on the use of prodrugs may be found in "Pro-drugs as Novel Delivery Systems, Vol. 14, ACS Symposium Series (T Higuchi and W Stella) and "Bioreversible Carriers in Drug Design", Pergamon Press, 1987 (ed. E B Roche, American Pharmaceutical Association).

Prodrugs in accordance with the invention can, for example, be produced by replacing appropriate functionalities present in the compounds of formula with certain moieties know to those skilled in the art as "pro-moieties" as described, for example, in "Design of Prodrugs" by H Bundgaard (Elsevier, 1985).

Some examples of prodrugs in accordance with the invention include: where the compound of formula contains a carboxylic acid functionality COOH), an ester thereof, for example, replacement of the hydrogen with C 1 8 alkyl; (ii) where the compound of formula contains an alcohol functionality an ether thereof, for example, replacement of the hydrogen with CI- 6 alkanoyloxymethyl; and (iii) where the compound of formula contains a primary or secondary amino functionality (-NH 2 or -NHR where R an amide thereof, for example, replacement of one or both hydrogens with C 1 -o 1 alkanoyl.

Further examples of replacement groups in accordance with the foregoing examples and examples of other prodrug types may be found in the aforementioned references.

Finally, certain compounds of formula may themselves act as prodrugs of other compounds of formula WO 200n5/063754 PCT/IBT2004/n004059 -12- Also within the scope of the invention are the metabolites of the compounds of formula when formed in vivo.

Compounds of formula containing one or more asymmetric carbon atoms can exist as two or more stereoisomers. Where a compound of formula contains an alkenyl or alkenylene group, geometric cis/trans (or Z/E) isomers are possible, and where the compound contains, for example, a keto or oxime group or an aromatic moiety, tautomeric isomerism ('tautomerism') may occur. It follows that a single compound may exhibit more than one type of isomerism.

Included within the scope of the present invention are all stereoisomers, geometric isomers and tautomeric forms of the compounds of formula including compounds exhibiting more than one type of isomerism, and mixtures of one or more thereof. Also included are acid addition or base salts wherein the counter ion is optically active, for example, D-lactate or L-lysine, or racemic, for example, DL-tartrate or DL-arginine.

Cis/trans isomers may be separated by conventional techniques well known to those skilled in the art, for example, fractional crystallisation and chromatography.

Conventional techniques for the preparation/isolation of individual enantiomers include chiral synthesis from a suitable optically pure precursor or resolution of the racemate (or the racemate of a salt or derivative) using, for example, chiral HPLC.

Alternatively, the racemate (or racemic precursor) may be reacted with a suitable optically active compound, for example, an alcohol, or, in the case where the compounds of formula contains an acidic or basic moiety, an acid or base such as tartaric acid or 1-phenylethylamine. The resulting diastereomeric mixture may be separated by chromatography and/or fractional crystallisation and one or both of the diastereomers converted to the corresponding pure enantiomer(s) by means well known to a skilled person.

Chiral compounds of the invention (and chiral precursors thereof) may be obtained in enantiomerically-enriched form using chromatography, typically HPLC, on an asymmetric resin with a mobile phase consisting of a hydrocarbon, typically heptane or hexane, containing from 0 to 50% isopropanol, typically from 2 to 20%, and from 0 to WO 200n5/063754 PCT/IBT2004/n004059 -13of an alkylamine, typically 0.1% diethylamine. Concentration of the eluate affords the enriched mixture.

Stereoisomeric conglomerates may be separated by conventional techniques known to those skilled in the art see, for example, "Stereochemistry of Organic Compounds" by E L Eliel (Wiley, New York, 1994).

The present invention also includes all pharmaceutically acceptable isotopic variations of a compound of the formula one or more atoms is replaced by atoms having the same atomic number, but an atomic mass or mass number different from the atomic mass or mass number usually found in nature.

Examples of isotopes suitable for inclusion in the compounds of the invention include isotopes of hydrogen such as 2H and 3H, carbon such as 11C, 13 C and 14 C, nitrogen such as 13 N and 1 5 N, oxygen such as 50, 170 and 80, phosphorus such as 32 p, sulphur such as 35 S, fluorine such as 18 F, iodine such as 1231 and 1251, and chlorine such as 3CI.

Certain isotopically-labelled compounds of formula for example those incorporating a radioactive isotope, are useful in drug and/or substrate tissue distribution studies. The radioactive isotopes tritium, i.e. 3 H, and carbon-14, i.e. 14 C, are particularly useful for this purpose in view of their ease of incorporation and ready means of detection.

Substitution with heavier isotopes such as deuterium, i.e. 2 H, may afford certain therapeutic advantages resulting from greater metabolic stability, for example, increased in vivo half-life or reduced dosage requirements, and hence may be preferred in some circumstances.

Substitution with positron emitting isotopes, such as 11 C, 1 8 F, 150 and 13 N, can be useful in Positron Emission Topography (PET) studies for examining substrate receptor occupancy.

Isotopically-labelled compounds of formula can generally be prepared by conventional techniques known to those skilled in the art or by processes analogous to those described in the accompanying Examples and Preparations using appropriate isotopically-labelled reagents in place of the non-labelled reagent previously employed.

WO 2005/063754 PCT/IB2004/004059 -14- Pharmaceutically acceptable solvates in accordance with the invention include those wherein the solvent of crystallisation may be isotopically substituted, e.g. D 2 0, d 6 acetone and d6-DMSO.

The compounds of the invention are useful in therapy. Therefore, a further aspect of the invention is the use of a compound of formula or a pharmaceutically salt or solvate thereof, as a medicament.

The compounds of the invention show activity as Via antagonists. In particular they are useful in the treatment of a number of conditions including aggression, Alzheimer's disease, anorexia nervosa, anxiety, anxiety disorder, asthma, atherosclerosis, autism, cardiovascular disease (including angina, atherosclerosis, hypertension, heart failure, edema, hypernatremia), cataract, central nervous system disease, cerebrovascular ischemia, cirrhosis, cognitive disorder, Cushing's disease, depression, diabetes mellitus, dysmenorrhoea (primary and secondary), emesis (including motion sickness), endometriosis, gastrointestinal disease, glaucoma, gynaecological disease, heart disease, intrauterine growth retardation, inflammation (including rheumatoid arthritis), ischemia, ischemic heart disease, lung tumor, micturition disorder, mittlesmerchz, neoplasm, nephrotoxicity, non-insulin dependent diabetes, obesity, obsessive/compulsive disorder, ocular hypertension, preclampsia, premature ejaculation, premature (preterm) labor, pulmonary disease, Raynaud's disease, renal disease, renal failure, male or female sexual dysfunction, septic shock, sleep disorder, spinal cord injury, thrombosis, urogenital tract infection or urolithiasis.sleep disorder, spinal cord injury, thrombosis, urogenital tract infection, urolithiasis. Particularly of interest is dysmenorrhoea (primary or secondary), more particularly, primary dysmenorrhoea.

Therefore, a further aspect of the invention is the method of treatment of a mammal, including a human being, to treat a disorder for which a Via antagonist is indicated, comprising administering a therapeutically effective amount of a compound of formula or a pharmaceutically acceptable salt or solvate thereof, to the mammal. In particular, the compounds of formula are useful in treating anxiety, cardiovascular disease (including angina, atherosclerosis, hypertension, heart failure, edema, hypernatremia), dysmenorrhoea (primary and secondary), endometriosis, emesis (including motion sickness), intrauterine growth retardation, inflammation (including rheumatoid arthritis), mittlesmerchz, preclampsia, premature ejaculation, premature (preterm) labour or Raynaud's disease. Even more particularly, they are useful in treating dysmenorrhoea (primary or secondary).

r A further aspect of the present invention is the use of a compound of formula or O a pharmaceutically acceptable salt or solvate thereof, in the manufacture of a medicament 0 for the treatment of a disorder for which a Via receptor antagonist is indicated.

Cc Thus, in another aspect the invention provides the use of a compound of formula (I) s in the manufacture of a medicament for the treatment of anxiety, cardiovascular disease S(including angina, atherosclerosis, hypertension, heart failure, edema, hypernatremia), dysmenorrhoea (primary and secondary), endometriosis, emesis (including motion Ssickness), intrauterine growth retardation, inflammation (including rheumatoid arthritis), mittlesmerchz, preclampsia, premature ejaculation, premature (preterm) labour or Raynaud's disease.

In a further aspect the invention provides a pharmaceutical formulation comprising a compound of formula together with a pharmaceutically acceptable excipient, diluent or carrier.

In another aspect the invention provides a combination of a compound of formula and another pharmacologically active ingredient.

In another aspect the invention provides the use of a combination of a compound of formula and another pharmacologically active ingredient, for the manufacture of a medicament for combination therapy by simultaneous, sequential or separate administration, in the treatment of dysmenorrhoea (primary or secondary).

In a further aspect the invention provides a method of treating dysmenorrhoea comprising administering to a subject in need of such treatment a combination of a compound of formula and another pharmacologically active ingredient, wherein the amounts of(A) and are together effective.

In another aspect the invention provides a pharmaceutical product containing a combination of a compound of formula and another pharmacologically active ingredient, as a combined preparation for simultaneous, separate or sequential use in treating dysmenorrhoea (primary or secondary).

All of the compounds of the formula can be prepared by the procedures described in the general methods presented below or by the specific methods described in the Examples section and the Preparations section, or by routine modifications thereof.

The present invention also encompasses any or one or more of these processes for preparing the compounds of formula in addition to any novel intermediates used therein.

*Ii~iriMmio I, nnv CK1 Unless otherwise provided herein: WSCDI means 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride, DCC means N,N'-dicyclohexylcarbodiimide, HOAT means I-hydroxy-I-aza benzotriazole, and HOBT means 1-hydroxybenzotriazole hydrate; s PyBOPO means Benzotriazol- 1 -yloxytris(pyrrolidino)phosphoniumhexafluoro phosphate, PyBrOP® means bromo-tris-pyrrolidino-phosphoniumhexafluorophosphate, and HBTU means O-benzotriazol-1 -yl-N,N,N'-tetramethyluronium hexafluorophosphate; mCPBA means meta-chloroperbenzoic acid, AcOH means acetic acid, HCI means hydrochloric acid, TFA means trifluoroacetic acid, and p-TSA means p-toluenesulphonic C 10 acid; Et 3 N means triethylamine and NMM means N-methylmorpholine;

K

2 C0 3 means potassium carbonate and KO-'Bu mean potassium tert-butoxide; NaOH, KOH and LIOH mean sodium, potassium and lithium hydroxide respectively; Boc means tert-butoxycarbonyl and CBz means benzyloxycarbonyl; PTFE means polytetrafluoroethane; Mel means methyl iodide; MeTosylate means methyl p-toluenesulphonate; MeOH means methanol, EtOH means ethanol and n-BuOH means n-butyl alcohol; EtOAc means ethyl acetate, MeCN means acetonitrile, TUF means tetrahydrofuran, DMSO means dimethyl sulphoxide, DCM means dichloromethane, DMF means N,Ndimethylformamide, NMP means N-methyl-2-pyrrolidinone, and DMA means dimethylacetamide; A112MOM01fin9 IiAAK WO 200n5/063754 PCT/IBT2004/n004059 -16- Me means methyl, Et means ethyl, Cl means chloro, and OH means hydroxy; cat means catalyst or catalytic.

In the following general methods, R, R 2

R

3 ring A, V, X, Q, Z, Y, Het, Het', and Het 2 are as previously defined for a compound of the formula unless otherwise stated.

When Q represents NR 2 or Q represents a direct link attached to a nitrogen atom within ring A, then compounds of formula may be prepared according to Scheme 1.

H N N X N N N x (b) SpG

Q

Y PG- NH (II) PG-Q PG-Q (IV) N (d) 1 py z) Y PG represents a suitable N protecting group, typically a benzyl, BOC or CBz group, and preferably BOC.

Scheme 1 Compounds of formula (II) may be obtained as described in WO 9703986 Al 19970206, or by reaction of the corresponding lower alkyl ester methyl or ethyl) with hydrazine under standard conditions, as exemplified in the preparations below.

Step Compounds of formula (III) may be prepared by reaction of hydrazine (II) with a suitable acetal N,N-dimethylacetamide dimethyl acetal) in a suitable solvent such as THF, or DMF, at between room temperature and about 60°C, for up to 18 hours. The resulting intermediate may then be treated under acid catalysis p-TSA, or TFA) in a high boiling solvent toluene, or xylene) for about 18 hours, to provide the compound of formula (III). Preferred conditions: 1.5-2.0 eq. of acetal N,N-dimethylacetamide dimethyl acetal, triethyl orthopropionate), in THF or DMF at room temperature to 600C for about 18 hours, followed by p-TSA, or TFA (cat), in toluene at reflux for 18 hours.

Step Formation of triazole (IV) may be achieved by reaction of compound (III) with a suitable aniline, in the presence of a suitable acid catalyst, such as TFA or p-TSA, in a suitable high boiling solvent toluene, or xylene), at an elevated temperature.

WO 2005/063754 PCT/IB2004/004059 -17- Preferred conditions: 0.5-1.0 eq. TFA, 1.0-2.0 eq. aniline in toluene at about reflux temperature for up to 18 hours.

Step Deprotection of compound (IV) is undertaken using standard methodology, as described in "Protecting Groups in Organic Synthesis" by T.W. Greene and P. Wutz.

When PG represents BOC, the preferred conditions are: 4M HCI in dioxan in MeOH, dioxan or DCM at between room temperature and about 50 0 C, for up to 18 hours; Or, 2.2M HCI in MeOH for up to 18 hours at room temperature; Or, TFA in DCM at room temperature for about 1 hour.

Alternatively, when PG represents BOC, compound may be prepared directly from compound (III) by treatment with an excess of TFA, typically 1.1-1.5 eq.) and the appropriate aniline in toluene, at the reflux temperature of the reaction, for up to 4 days.

Step Compounds of formula may be prepared by reaction of amine with a suitable acid or acid chloride (z T, where T represents OH or CI). The coupling may be undertaken by using either: o an acyl chloride, z cl amine with an excess of acid base in a suitable solvent; or (ii) an acid ZCO 2 H with a conventional coupling agent amine optionally in the presence of a catalyst, with an excess of base in a suitable solvent.

Typically the conditions are as follows: ,k acid chloride z ci, amine (optionally with an excess of 30 amine such as Et 3 N, HOnig's base or NMM) in DCM or THF, without heating, for 1 to 24 hours; or (ii) acid ZCO 2 H, WSCDI /DCC and HOBT /HOAT, amine, an excess of NMM, Et 3 N, or Honig's base, in THF, DCM, DMA or EtOAc, at room temperature for 4 to 48 hours; or acid ZCO 2 H, PYBOP®/PyBrOP®/O-benzotriazol-1-yl-N,N,N',N'-tetra methyl uronium hexafluorophosphate, excess amine, excess of NMM, Et 3 N, or Honig's base, in THF, DCM, DMA or EtOAc, at room temperature for 4 to 24 hours.

Preferred conditions are: WO 2005/063754 PCT/IB2004/004059 -18o 1 eq. amine 1.0-1.5 eq. z c, 1.5-5 eq. NMM, Et 3 N or H0nig's base in DCM at room temperature for up to 18 hours; Or, 1 eq. amine 1.2 eq. ZCO 2 H, 1.2-1.5 eq. HOBT, 1.2-1.5 eq. WSCDI, 2-4 eq.

Et 3 N, in DCM at room temperature for 24 hours; Or, leq. amine 1.2-1.5 eq. ZCO 2 H, 1.2-2.0 eq. HBTU, 5eq. Et 3 N or NMM in DMA or DCM, at between room temperature and 60°C for up to 24 hours.

Compounds of formula wherein Q represents NR 2 or Q represents a direct link attached to a nitrogen atom within ring A which is in turn attached to the triazole ring through a nitrogen atom, may alternatively be prepared as described in Scheme 2 below, and are represented as (IVA).

PG

I PG s PGV (VID A N 0 AN SCH, S(IVA)

Y

Scheme 2.

Step Compounds of formula (VIIIA) may be prepared by reaction of approximately equimolar amounts of isothiocyanate (VI) and amine (VII), in a suitable solvent (e.g.

EtOH, or DCM) at room temperature for between 2 and 72 hours. Preferred conditions: 1-1.1 eq. 1 eq. (VII), in EtOH or DCM, at room temperature for 0.5-2 hours.

Compounds of formulae (VI) and (VII) are commercially available, or may be prepared from known compounds using standard chemical transformations.

Step Compounds of formula (IXA) may be prepared by methylation of thiourea (VIIIA), using a suitable methylating agent Mel, or MeTosylate), in the presence of a suitable base KOt-Bu) in a suitable solvent THF, or ether) at between 0 0

C

and the reflux temperature of the reaction, for about 18 hours. Preferred conditions: WO 2005/063754 PCT/IB2004/004059 -19leq. (VIIIA), 1-1.2 eq. KO'-Bu, 1-1.2 eq. Mel or MeTosylate, in THF, at between and room temperature for up to 18 hours.

Step Compounds of formula (IVA) may be prepared by reaction of compounds (IXA) with a suitable hydrazide (XCONHNH 2 optionally under acidic catalysis TFA, or p-TSA) in a suitable solvent THF, or n-BuOH), at between room temperature and the reflux temperature of the reaction. Preferred conditions: 0.5 eq. TFA, excess hydrazide (XCONHNH 2 in THF at reflux for up to 18 hours.

Compounds of formula (VIIIA), wherein Q represents NR 2 or Q represents a direct link attached to a nitrogen atom within ring A, which in turn is attached to the triazole ring through a nitrogen atom, may alternatively be prepared as shown in Scheme 3.

N PG Y (h) y (VI) (XI) (VIIIA) Scheme 3.

Compounds of formula are commercially available, or may be prepared from known compounds using standard chemical transformations.

Compounds of formula (XI) may be prepared from isothiocyanate (VI) and amine by analogy with the methods previously described for Step above.

Step Compounds of formula (VIIIA) may be obtained by protection of the reactive nitrogen atom, using standard methodology, as described in "Protecting Groups in Organic Synthesis" by T.W. Greene and P. Wutz. When PG is BOC, the preferred conditions are: 1 eq. amine 1 eq. di-t-butyl dicarbonate, in DCM and dioxan, at room temperature, for about 3 hours.

Compounds of formula (VIII), wherein Q represents NR 2 or Q represents a direct link attached to a nitrogen atom within ring A, which in turn is attached to the triazole ring through a carbon atom, may be prepared as described in Scheme and are represented as (VIIIB).

WO 2005/063754 PCT/IB2004/004059

OH

A 0 S

H

2 N' PG Q Y PG y,

Y

(XIII) (XIV) Y (VIIIB) Y Scheme 4.

Step Compounds of formula (XIV) may be prepared by coupling of aniline (XIII) with acid (XII), by analogy with the methods previously described in Step Preferred conditions: leq. acid (XII), 1.1eq. amine (XIII), 1.2 eq. WSCDI, 3 eq. Et 3 N in MeCN at room temperature, for about 3 days.

Step The compound of formula (VIIIB) is prepared by thionation of compound (XIV) by treatment with a suitable thionating agent, such as Lawesson's reagent, in a high boiling solvent toluene) at between room temperature and the reflux temperature of the reaction. Preferred conditions: leq. (XIV), 0.5 eq. Lawesson's reagent in toluene, for between room temperature and reflux, for up to 18 hours.

Compounds of formula (III), wherein Q represents NR 2 or Q represents a direct link which is attached to a nitrogen atom within ring A, may alternatively be prepared as shown in Scheme 0 x H H X N 0 N N-N

NH

2 O H N 0 A Q PG PG (II) (xv) (III) Scheme Step Di-acylhydrazides (XV) may be prepared by coupling hydrazides (II) with acid o or acid chloride z T, where T represents CI or OH), by analogy with the methods previously described in Step Preferred conditions: 1 eq. hydrazide 1.1 eq.

XCO

2 H, 1.1 eq. WSCDI, 1.1 eq. HOBT, 1.2 eq. Et 3 N, in DMF at room temperature for 18 hours.

WO 2005/063754 PCT/IB2004/004059 -21- Step Oxadiazole (III) may be prepared by cyclisation of compound typically under acid catalysis polyphosphoric acid, POCI 3 triflic anhydride/pyridine, or 1methylimidazole), optionally in a suitable solvent DCM), at between 0 C and the reflux temperature of the reaction. Preferred conditions: leq. excess pyridine or 1-methylimidazole, 1.5-2eq triflic anhydride, in DCM, at between 0°C and room temperature for up to 3 hours.

Compounds of formula (XV) may alternatively be prepared by coupling acid (XII) with a suitable hydrazide (XCONHNH 2 by analogy with the methods previously described in Step Preferred conditions: 1 eq. acid (XII), 1 eq. hydrazide, 1.02 eq. WSDCI, in DCM at between 0°C and room temperature.

Compounds of formula (III), wherein X represents CH 2 N-linked-Het, may alternatively be prepared as shown in Scheme 6.

N'NN- o NH, N-NO 0 0 0 H Cl

NN-N

A

A

PG

PG" PG

PG'

(11) (XVI) (XVII) (III) Scheme 6 Step The compounds of formula (XVI) may be prepared by reaction of hydrazide (II) with chloroacetyl chloride, in the presence of a suitable 30 amine base Et 3 N, or NMM) in a suitable solvent EtOAc, or DCM) at between OoC and room temperature, for about 18 hours. Preferred conditions: 1 eq. 1 eq. acetyl chloride, 1.1 eq. NMM, in DCM, at 10°C to room temperature, for up to 18 hours.

Compounds of formula (XVII) may be prepared by cyclisation compound (XVI), by analogy with the methods previously described in Step above.

Step Compounds of formula (III) may be prepared by reaction of compound (XVII) with a suitable Het (containing a reactive N atom), in the presence of a suitable base Et 3 N, or K 2

CO

3 in a suitable solvent DMF, or MeCN), at between room temperature and the reflux temperature of the reaction, for about 18 hours. Preferred WO 2005/063754 PCT/IB2004/004059 -22conditions: 1 eq. (XVII), 1.4 eq. K 2 C0 3 2 eq. Het, in DMF at room temperature, for 18 hours.

Compounds of formula wherein Q represents NR 2 or Q represents a direct link which is attached to a nitrogen atom within ring A, may alternatively be prepared as shown in Scheme 7.

O ORa

A

(0)

Q

(XVIII)

.0 ORa

(P)

0o z

(XIX)

zX

(XXII)

(b) Ra represents C 1 4 alkyl or benzyl, and is preferably Me or Et.

Scheme 7 Step The compound of formula (XIX) may be prepared by reaction of amine (XVIII) with a suitable acid or acid chloride z T, where T represents OH or CI), by analogy with the methods previously described in Step Preferred conditions: 1 eq. (XVIII), 0.9 eq. ZCOCI, 1.1 eq. Et 3 N, in DCM, at between 10°C and room temperature, for about 3 hours.

Step The hydrazide of formula (XX) may be prepared by treating ester (XIX) with excess hydrazine in a suitable solvent EtOH, or MeOH), at the reflux temperature of the reaction, for up to 18 hours. Preferred conditions: 1 eq. (XIX), 2-4 eq. hydrazine, in MeOH at reflux, for between10 and 48 hours.

WO 200n5/063754 PCT/IBT2004/n004059 -23- Compounds of formula (XXI) may be prepared by reaction of hydrazide (XX) with z T, using the methods previously described in Step Compounds of formula (XXII) may be prepared by cyclisation of compound (XXI), using the methods previously described in Step Compounds of formula may be prepared from oxadiazole (XXII) with a suitable aniline, as previously described in Step Alternatively, compounds of formula (XXII) may be prepared directly from compound (XX) by reaction with an appropriate acetal triethyl orthopropionate, N,Ndimethylacetamide dimethyl acetal) by analogy with the methods previously described in Step Compounds of formula (XXII), wherein X represents CH 2 -N-linked-Het, may alternatively be prepared as shown in Scheme 8.

CI CI X H N S N NO

N

H

A

S A A A z z z (XX) (XXIII) (XXIV) (XXII) Scheme 8 Compounds of formula (XXIII) may be prepared by reaction of hydrazide (XX) with chloroacetyl chloride, by analogy with the methods previously described in Step Oxadiazole (XXIV) may be prepared by cyclisation of compound (XXIII), by analogy with the methods previously described in Step Compound (XXII) may be prepared by reaction of compound (XXIV) with a suitable Het (containing a reactive N atom), as previously described in Step WO 2005/063754 PCT/IB2004/004059 -24- Compounds of formula wherein ring A is attached to the triazole ring through a nitrogen atom, may alternatively be prepared as shown in Scheme 9.

z o N A S A Y yyf) S\ (VI) (XXVI) (XXVII) z

(I)

Scheme 9 Compounds of formula (XXV) are either commercially available or may be prepared from commercially available compounds, using standard chemical transformations.

Compounds of formula (XXVI) may be prepared by reaction of compound (XXV) with the appropriate isothiocyanate by analogy with the methods previously described in Step The compound of formula (XXVII) may be prepared by alkylation of compound (XXVI), by analogy with the methods previously described in Step The compound of formula may be prepared by reaction of compound (XXVII) with a suitable hydrazide, as previously described in Step Compounds of formula wherein Q represents a direct link which is attached to a carbon atom in ring A, which in turn is attached to the triazole ring via a nitrogen atom in ring A, and Z represents NR 4

R

5 may be prepared as shown in Scheme WO 2005/063754 PCT/IB2004/004059 RaO RaO S O 0 SR Q(XXVIII) 6 "N a Y YN (f y (VI) (XXIX) (XXX)

Y'Y

RaO z HO 0 0 Nc l N N /NY N

Y

x j 71 I (XXXII) (XXXI) Ra represents C 1 4 alkyl or benzyl, and is preferably Me or Et.

Scheme Compounds of formula (XXVIII) are either commercially available or may be prepared from commercially available compounds, using standard chemical transformations.

Compounds of formula (XXIX) may be prepared by reaction of compound (XXVIII) with the appropriate isothiocyanate by analogy with the methods previously described in Step The compound of formula (XXX) may be prepared by alkylation of compound (XXIX), by analogy with the methods previously described in Step The compound of formula (XXXI) may be prepared by reaction of compound (XXX) with a suitable hydrazide, as previously described in Step Step Hydrolysis of ester (XXXI) using a suitable acid or base catalyst, preferably an alkali metal base NaOH, KOH, or LiOH) in a suitable aqueous solvent dioxan, or MeOH) at between room temperature and the reflux temperature of the reaction, for between 2 and 48 hours. Preferred conditions: 1 eq. (XXXI), 5-10 eq. NaOH solution, in dioxan at between room temperature and reflux, for between 2 and16 hours.

WO 2005/063754 PCT/IB2004/004059 -26- Compounds of formula may be prepared by reaction of Z-H (containing a reactive N atom) with acid (XXXII), by analogy with the methods previously described for Step Preferred conditions: 1 eq. acid (XXXII), 1.5 eq. amine 4 eq. Et 3 N, 1.5 eq. WSCDI, eq. HOBT, in DCM at room temperature, for 24 hours.

Compounds of formula (XXXII) may alternatively be prepared by hydrolysis of the corresponding nitrile compound (XXXIII), under standard conditions 5 eq. KOH, 1 eq. nitrile (XXXIII), in ethanol/ethylene glycol dimethyl ether at reflux).

Compounds of formula (XXXIII) may be prepared as shown in Scheme 11.

N-N N-N N- X (b N vN

(XXXIV)

y

Y'

(XXXIII)

Scheme 11 Compounds of formula (XXXIII), wherein Q is a direct link and ring A is attached to the triazole ring through a nitrogen atom, may be prepared from the appropriate N- A isothiocyanate (VI) and an A ring containing nitrile, by analogy with the methods described in Scheme 9.

Compounds of formula wherein V represents an oxygen atom, may be prepared as shown in Scheme 12.

WO 2005/063754 PCT/IB2004/004059 -27-

X

s N-N N t) Y -y IA- (VI) (xxxV) (xxxvl) (xxxvI) (u) X

N-N

N HC- N X ZOQ y z Q OH (xxxix) v

(XXXVIII)

Scheme 12 Step The compound of formula (XXXV) may be prepared by reaction of hydrazide

(XCONHNH

2 with isothiocyanate (VI) by analogy with the methods previously described in Step Preferred conditions: 1 eq. isothiocyanate, 1 eq. hydrazide, in EtOH at room temperature for 72 hours.

Step Compounds of formula (XXXVI) may be prepared by cyclisation of compound (XXXV) under acid or base conditions, preferably base catalysis alkali metal hydroxide) in aqueous solvent water/EtOH), at an elevated temperature, for about 24 hours. Preferred conditions: 1 eq. (XXXV), 10 eq. NaOH(aq) in EtOH at 80 0 C for 18 hours.

Step Alkylation of compound (XXXVI) to provide compound (XXXVII) may be achieved by treatment with a suitable alkylating agent Mel, or Me-Tosylate), by analogy with the methods previously described in Step Preferred conditions: 1 eq.

(XXXVI), 1 eq. KOt-Bu, 1 eq. Me-Tosylate, in THF at between room temperature and reflux for 3 hours.

Step Compounds of formula (XXXVIII) may be obtained by oxidation of compound (XXXVII) by treatment with a suitable oxidising agent mCPBA, or hydrogen peroxide) in a suitable solvent DCM) at room temperature for about 18hours.

Preferred conditions: 1 eq. (XXXVII), 4 eq. mCPBA, in DCM at room temperature for 18 hours.

WO 2005/063754 PCT/IB2004/004059 -28- Step Compounds of formula may be prepared by reaction of sulphoxide (XXXVIII) with an excess of alcohol (XXXIX) in the presence of a suitable base (e.g.

NaH, or KOt-Bu), in a suitable solvent THF, or ether) at between 00 and room temperature for up to 18 hours. Preferred conditions: 1 eq. (XXXVIII), 2 eq. NaH, 2 eq.

alcohol (XXXIX), in THF for 18 hours at room temperature.

Compounds of formula (XXXIX) are either commercially available or may be prepared from commercially available compounds, using standard chemical transformations.

Certain compounds of formulae (III), (XXII), and (XXXI) may undergo functional group interconversions alkylation, or hydrolysis) to provide alternative compounds of formulae (III), (XXII), or (XXXI), respectively.

Compounds of the invention intended for pharmaceutical use may be administered as crystalline or amorphous products. They may be obtained, for example, as solid plugs, powders, or films by methods such as precipitation, crystallisation, freeze drying, spray drying, or evaporative drying. Microwave or radio frequency drying may be used for this purpose.

They may be administered alone or in combination with one or more other compounds of the invention or in combination with one or more other drugs (or as any combination thereof). Generally, they will be administered as a formulation in association with one or more pharmaceutically acceptable excipients. The term 'excipient' is used herein to describe any ingredient other than the compound(s) of the invention. The choice of excipient will to a large extent depend on factors such as the particular mode of administration, the effect of the excipient on solubility and stability, and the nature of the dosage form.

A further aspect of the invention is a pharmaceutical formulation including a compound of formula or a pharmaceutically acceptable salt or solvate thereof, together with a pharmaceutically acceptable excipient, diluent or carrier. In a further embodiment there is provided the pharmaceutical formulation for administration either prophylactically or when pain commences.

Pharmaceutical compositions suitable for the delivery of compounds of the present invention and methods for their preparation will be readily apparent to those skilled in the WO 2005/063754 PCT/IB2004/004059 -29art. Such compositions and methods for their preparation may be found, for example, in Remington's Pharmaceutical Sciences, 19th Edition (Mack Publishing Company, 1995).

The compounds of the invention may be administered orally. Oral administration may involve swallowing, so that the compound enters the gastrointestinal tract, or buccal or sublingual administration may be employed by which the compound enters the blood stream directly from the mouth.

Formulations suitable for oral administration include solid formulations such as tablets, capsules containing particulates, liquids, or powders, lozenges (including liquid-filled), chews, multi- and nano-particulates, gels, solid solution, liposome, films, ovules, sprays and liquid formulations.

Liquid formulations include suspensions, solutions, syrups and elixirs. Such formulations may be employed as fillers in soft or hard capsules and typically comprise a carrier, for example, water, ethanol, polyethylene glycol, propylene glycol, methylcellulose, or a suitable oil, and one or more emulsifying agents and/or suspending agents. Liquid formulations may also be prepared by the reconstitution of a solid, for example, from a sachet.

The compounds of the invention may also be used in fast-dissolving, fast-disintegrating dosage forms such as those described in Expert Opinion in Therapeutic Patents, 11 981-986, by Liang and Chen (2001).

For tablet dosage forms, depending on dose, the drug may make up from 1 weight to weight of the dosage form, more typically from 5 weight to 60 weight of the dosage form. In addition to the drug, tablets generally contain a disintegrant. Examples of disintegrants include sodium starch glycolate, sodium carboxymethyl cellulose, calcium carboxymethyl cellulose, croscarmellose sodium, crospovidone, polyvinylpyrrolidone, methyl cellulose, microcrystalline cellulose, lower alkyl-substituted hydroxypropyl cellulose, starch, pregelatinised starch and sodium alginate. Generally, the disintegrant will comprise from 1 weight to 25 weight preferably from 5 weight to 20 weight of the dosage form.

Binders are generally used to impart cohesive qualities to a tablet formulation. Suitable binders include microcrystalline cellulose, gelatin, sugars, polyethylene glycol, natural and synthetic gums, polyvinylpyrrolidone, pregelatinised starch, hydroxypropyl cellulose WO 2005/063754 PCT/IB2004/004059 and hydroxypropyl methylcellulose. Tablets may also contain diluents, such as lactose (monohydrate, spray-dried monohydrate, anhydrous and the like), mannitol, xylitol, dextrose, sucrose, sorbitol, microcrystalline cellulose, starch and dibasic calcium phosphate dihydrate.

Tablets may also optionally comprise surface active agents, such as sodium lauryl sulfate and polysorbate 80, and glidants such as silicon dioxide and talc. When present, surface active agents may comprise from 0.2 weight to 5 weight of the tablet, and glidants may comprise from 0.2 weight to 1 weight of the tablet.

Tablets also generally contain lubricants such as magnesium stearate, calcium stearate, zinc stearate, sodium stearyl fumarate, and mixtures of magnesium stearate with sodium lauryl sulphate. Lubricants generally comprise from 0.25 weight to 10 weight preferably from 0.5 weight to 3 weight of the tablet.

Other possible ingredients include anti-oxidants, colourants, flavouring agents, preservatives and taste-masking agents.

Exemplary tablets contain up to about 80% drug, from about 10 weight to about weight binder, from about 0 weight to about 85 weight diluent, from about 2 weight to about 10 weight disintegrant, and from about 0.25 weight to about weight lubricant.

Tablet blends may be compressed directly or by roller to form tablets. Tablet blends or portions of blends may alternatively be wet-, dry-, or melt-granulated, melt congealed, or extruded before tabletting. The final formulation may comprise one or more layers and may be coated or uncoated; it may even be encapsulated.

The formulation of tablets is discussed in Pharmaceutical Dosage Forms: Tablets, Vol.

1, by H. Lieberman and L. Lachman (Marcel Dekker, New York, 1980).

Consumable oral films for human or veterinary use are typically pliable water-soluble or water-swellable thin film dosage forms which may be rapidly dissolving or mucoadhesive and typically comprise a compound of formula a film-forming polymer, a binder, a solvent, a humectant, a plasticiser, a stabiliser or emulsifier, a viscosity-modifying agent and a solvent. Some components of the formulation may perform more than one function.

WO 200n5/063754 PCT/IBT2004/n004059 -31- The compound of formula may be water-soluble or insoluble. A water-soluble compound typically comprises from 1 weight to 80 weight more typically from weight to 50 weight of the solutes. Less soluble compounds may comprise a greater proportion of the composition, typically up to 88 weight of the solutes.

Alternatively, the compound of formula may be in the form of multiparticulate beads.

The film-forming polymer may be selected from natural polysaccharides, proteins, or synthetic hydrocolloids and is typically present in the range 0.01 to 99 weight more typically in the range 30 to 80 weight Other possible ingredients include anti-oxidants, colorants, flavourings and flavour enhancers, preservatives, salivary stimulating agents, cooling agents, co-solvents (including oils), emollients, bulking agents, anti-foaming agents, surfactants and tastemasking agents.

Films in accordance with the invention are typically prepared by evaporative drying of thin aqueous films coated onto a peelable backing support or paper. This may be done in a drying oven or tunnel, typically a combined coater dryer, or by freeze-drying or vacuuming.

Solid formulations for oral administration may be formulated to be immediate and/or modified release. Modified release formulations include delayed-, sustained-, pulsed-, controlled-, targeted and programmed release.

Suitable modified release formulations for the purposes of the invention are described in US Patent No. 6,106,864. Details of other suitable release technologies such as high energy dispersions and osmotic and coated particles are to be found in Pharmaceutical Technology On-line, 25(2), 1-14, by Verma et al (2001). The use of chewing gum to achieve controlled release is described in WO 00/35298.

The compounds of the invention may also be administered directly into the blood stream, into muscle, or into an internal organ. Suitable means for parenteral administration include intravenous, intraarterial, intraperitoneal, intrathecal, intraventricular, intraurethral, intrasternal, intracranial, intramuscular and subcutaneous. Suitable devices for parenteral administration include needle (including microneedle) injectors, needle-free injectors and infusion techniques.

WO 2005/063754 PCT/IB2004/004059 -32- Parenteral formulations are typically aqueous solutions which may contain excipients such as salts, carbohydrates and buffering agents (preferably to a pH of from 3 to 9), but, for some applications, they may be more suitably formulated as a sterile nonaqueous solution or as a dried form to be used in conjunction with a suitable vehicle such as sterile, pyrogen-free water.

The preparation of parenteral formulations under sterile conditions, for example, by lyophilisation, may readily be accomplished using standard pharmaceutical techniques well known to those skilled in the art.

The solubility of compounds of formula used in the preparation of parenteral solutions may be increased by the use of appropriate formulation techniques, such as the incorporation of solubility-enhancing agents.

Formulations for parenteral administration may be formulated to be immediate and/or modified release. Modified release formulations include delayed-, sustained-, pulsed-, controlled-, targeted and programmed release. Thus compounds of the invention may be formulated as a solid, semi-solid, or thixotropic liquid for administration as an implanted depot providing modified release of the active compound. Examples of such formulations include drug-coated stents and poly(d/-lactic-coglycolic)acid (PGLA) microspheres.

The compounds of the invention may also be administered topically to the skin or mucosa, that is, dermally or transdermally. Typical formulations for this purpose include gels, hydrogels, lotions, solutions, creams, ointments, dusting powders, dressings, foams, films, skin patches, wafers, implants, sponges, fibres, bandages and microemulsions. Liposomes may also be used. Typical carriers include alcohol, water, mineral oil, liquid petrolatum, white petrolatum, glycerin, polyethylene glycol and propylene glycol. Penetration enhancers may be incorporated see, for example, J Pharm Sci, 88 955-958, by Finnin and Morgan (October 1999).

Other means of topical administration include delivery by electroporation, iontophoresis, phonophoresis, sonophoresis and microneedle or needle-free Powderject T M Bioject T M etc.) injection.

WO 2005/063754 PCT/IB2004/004059 -33- Formulations for topical administration may be formulated to be immediate and/or modified release. Modified release formulations include delayed-, sustained-, pulsed-, controlled-, targeted and programmed release.

The compounds of the invention can also be administered intranasally or by inhalation, typically in the form of a dry powder (either alone, as a mixture, for example, in a dry blend with lactose, or as a mixed component particle, for example, mixed with phospholipids, such as phosphatidylcholine) from a dry powder inhaler or as an aerosol spray from a pressurised container, pump, spray, atomiser (preferably an atomiser using electrohydrodynamics to produce a fine mist), or nebuliser, with or without the use of a suitable propellant, such as 1,1,1,2-tetrafluoroethane or 1,1,1,2,3,3,3heptafluoropropane. For intranasal use, the powder may comprise a bioadhesive agent, for example, chitosan or cyclodextrin.

The pressurised container, pump, spray, atomizer, or nebuliser contains a solution or suspension of the compound(s) of the invention comprising, for example, ethanol, aqueous ethanol, or a suitable alternative agent for dispersing, solubilising, or extending release of the active, a propellant(s) as solvent and an optional surfactant, such as sorbitan trioleate, oleic acid, or an oligolactic acid.

Prior to use in a dry powder or suspension formulation, the drug product is micronised to a size suitable for delivery by inhalation (typically less than 5 microns). This may be achieved by any appropriate comminuting method, such as spiral jet milling, fluid bed jet milling, supercritical fluid processing to form nanoparticles, high pressure homogenisation, or spray drying.

Capsules (made, for example, from gelatin or hydroxypropylmethylcellulose), blisters and cartridges for use in an inhaler or insufflator may be formulated to contain a powder mix of the compound of the invention, a suitable powder base such as lactose or starch and a performance modifier such as I-leucine, mannitol, or magnesium stearate. The lactose may be anhydrous or in the form of the monohydrate, preferably the latter.

Other suitable excipients include dextran, glucose, maltose, sorbitol, xylitol, fructose, sucrose and trehalose.

A suitable solution formulation for use in an atomiser using electrohydrodynamics to produce a fine mist may contain from 1pg to 20mg of the compound of the invention per actuation and the actuation volume may vary from 1pl to 100pl. A typical formulation WO 2005/063754 PCT/IB2004/004059 -34may comprise a compound of formula propylene glycol, sterile water, ethanol and sodium chloride. Alternative solvents which may be used instead of propylene glycol include glycerol and polyethylene glycol.

Suitable flavours, such as menthol and levomenthol, or sweeteners, such as saccharin or saccharin sodium, may be added to those formulations of the invention intended for inhaled/intranasal administration.

Formulations for inhaled/intranasal administration may be formulated to be immediate and/or modified release using, for example, PGLA. Modified release formulations include delayed-, sustained-, pulsed-, controlled-, targeted and programmed release.

In the case of dry powder inhalers and aerosols, the dosage unit is determined by means of a valve, which delivers a metered amount. The overall daily dose will typically be in the range 0.01 pg to 15 mg which may be administered in a single dose or, more usually, as divided doses throughout the day.

The compounds of the invention may be administered rectally or vaginally, for example, in the form of a suppository, pessary, or enema. Cocoa butter is a traditional suppository base, but various alternatives may be used as appropriate.

Formulations for rectal/vaginal administration may be formulated to be immediate and/or modified release. Modified release formulations include delayed-, sustained-, pulsed-, controlled-, targeted and programmed release.

The compounds of the invention may also be administered directly to the eye or ear, typically in the form of drops of a micronised suspension or solution in isotonic, pHadjusted, sterile saline. Other formulations suitable for ocular and aural administration include ointments, biodegradable absorbable gel sponges, collagen) and nonbiodegradable silicone) implants, wafers, lenses and particulate or vesicular systems, such as niosomes or liposomes. A polymer such as crossed-linked polyacrylic acid, polyvinylalcohol, hyaluronic acid, a cellulosic polymer, for example, hydroxypropylmethylcellulose, hydroxyethylcellulose, or methyl cellulose, or a heteropolysaccharide polymer, for example, gelan gum, may be incorporated together with a preservative, such as benzalkonium chloride. Such formulations may also be delivered by iontophoresis.

WO 2005/063754 PCTIB2004/004059 Formulations for ocular/aural administration may be formulated to be immediate and/or modified release. Modified release formulations include delayed-, sustained-, pulsed-, controlled-, targeted, or programmed release.

The compounds of the invention may be combined with soluble macromolecular entities, such as cyclodextrin and suitable derivatives thereof or polyethylene glycol-containing polymers, in order to improve their solubility, dissolution rate, taste-masking, bioavailability and/or stability for use in any of the aforementioned modes of administration.

Drug-cyclodextrin complexes, for example, are found to be generally useful for most dosage forms and administration routes. Both inclusion and non-inclusion complexes may be used. As an alternative to direct complexation with the drug, the cyclodextrin may be used as an auxiliary additive, iLe. as a carrier, diluent, or solubiliser. Most commonly used for these purposes are alpha-, beta- and gamma-cyclodextrins, examples of which may be found in International Patent Applications Nos. WO 91/11172, WO 94/02518 and WO 98/55148.

Inasmuch as it may desirable to administer a combination of active compounds, for example, for the purpose of treating a particular disease or condition, it is within the scope of the present invention that two or more pharmaceutical compositions, at least one of which contains a compound in accordance with the invention, may conveniently be combined in the form of a kit suitable for coadministration of the compositions.

Thus the kit of the invention comprises two or more separate pharmaceutical compositions, at least one of which contains a compound of formula in accordance with the invention, and means for separately retaining said compositions, such as a container, divided bottle, or divided foil packet. An example of such a kit is the familiar blister pack used for the packaging of tablets, capsules and the like.

The kit of the invention is particularly suitable for administering different dosage forms, for example, oral and parenteral, for administering the separate compositions at different dosage intervals, or for titrating the separate compositions against one another. To assist compliance, the kit typically comprises directions for administration and may be provided with a so-called memory aid.

WO 2005/063754 PCT/IB2004/004059 -36- For administration to human patients, the total daily dose of the compounds of the invention is typically in the range 0.01 mg to 15 mg depending, of course, on the mode of administration. The total daily dose may be administered in single or divided doses and may, at the physician's discretion, fall outside of the typical range given herein.

These dosages are based on an average human subject having a weight of about to 70kg. The physician will readily be able to determine doses for subjects whose weight falls outside this range, such as infants and the elderly.

For the avoidance of doubt, references herein to "treatment" include references to curative, palliative and prophylactic treatment.

The compounds of the present invention may be tested in the screens set out below: 1.0 V 1 A Filter Binding Assay 1.1 Membrane Preparation Receptor binding assays were performed on cellular membranes prepared from CHO cells stably expressing the human V1A receptor, (CHO-hV1A). The CHO-hV1A cell line was kindly provided under a licensing agreement by Marc Thibonnier, Dept. of Medicine, Case Western Reserve University School of Medicine, Cleveland, Ohio. CHO-hV1A cells were routinely maintained at 37 0 C in humidified atmosphere with 5% CO 2 in DMEM/Hams F12 nutrient mix supplemented with 10 fetal bovine serum, 2 mM Lglutamine, 15 mM HEPES and 400 pg/ml G418. For bulk production of cell pellets, adherent CHO-hV1A cells were grown to confluency of 90-100% in 850 cm 2 roller bottles containing a medium of DMEM/Hams F12 Nutrient Mix supplemented with 10 fetal bovine serum, 2 mM L-glutamine and 15 mM HEPES. Confluent CHO-hV1A cells were washed. with phosphate-buffered saline (PBS), harvested into ice cold PBS and centrifuged at 1,000 rpm. Cell pellets were stored at -80C until use. Cell pellets were thawed on ice and homogenised in membrane preparation buffer consisting of 50 mM Tris-HCI, pH 7.4, 5 mM MgCI 2 and supplemented with a protease inhibitor cocktail, (Roche). The cell homogenate was centrifuged at 1000 rpm, 10 min, 40C and the supernatant was removed and stored on ice. The remaining pellet was homogenised and centrifuged as before. The supernatants were pooled and centrifuged at 25,000 x g for 30 min at 4 0 C. The pellet was resuspended in freezing buffer consisting of 50 mM Tris-HCI, pH 7.4, 5 mM MgCI 2 and 20 glycerol and stored in small aliquots at -800C WO 2005/063754 PCT/IB2004/004059 -37until use. Protein concentration was determined using Bradford reagent and BSA as a standard.

1.2 VlA Filter binding Protein linearity followed by saturation binding studies were performed on each new batch of membrane. Membrane concentration was chosen that gave specific binding on the linear portion of the curve. Saturation binding studies were then performed using various concentrations of 3 H]-arginine vasopressin, 3 H]-AVP (0.05 nM 100 nM) and the Kd and Bmax determined.

Compounds were tested for their effects on 3 H]-AVP binding to CHO-hV1A membranes, 3 H-AVP; specific activity 65.5 Ci mmol; NEN Life Sciences). Compounds were solubilised in dimethylsulfoxide (DMSO) and diluted to working concentration of DMSO with assay buffer containing 50 mM Tris-HCL pH 7.4, 5 mM MgCI 2 and 0.05% BSA. 25 pl compound and 25 pl 3 H]-AVP, (final concentration at or below Kd determined for membrane batch, typically 0.5 nM 0.6 nM) were added to a 96-well round bottom polypropylene plate. The binding reaction was initiated by the addition of 200 pl membrane and the plates were gently shaken for 60 min at room temperature. The reaction was terminated by rapid filtration using a Filtermate Cell Harvester (Packard Instruments) through a 96-well GF/B UniFilter Plate which had been presoaked in polyethyleneimine to prevent peptide sticking. The filters were washed three times with 1 ml ice cold wash buffer containing 50 mM Tris-HCL pH 7.4 and 5 mM MgCI 2 The plates were dried and 50 pl Microscint-0 (Packard instruments) was added to each well. The plates were sealed and counted on a TopCount Microplate Scintillation Counter (Packard Instruments). Non-specific binding (NSB) was determined using 1 pM unlabelled d(CH2)5Tyr(Me)AVP ([p-mercapto-p,P-cyclopentamethylenepropionyl,0-Me- Tyr 2 ,Args]-vasopressin (pMCPVP), (Sigma). The radioligand binding data was analysed using a four parameter logistic equation with the min forced to The slope was free fitted and fell between -0.75 and -1.25 for valid curves. Specific binding was calculated by subtracting the mean NSB cpm from the mean Total cpm. For test compounds the amount of ligand bound to the receptor was expressed as bound (sample cpm mean NSB cpm)/specific binding cpm x100. The bound was plotted against the concentration of test compound and a sigmoidal curve was fitted. The inhibitory dissociation constant was calculated using the Cheng-Prusoff equation: Ki=IC 5 where is the concentration of ligand present in the well and Kd is the dissociation constant of the radioligand obtained from Scatchard plot analysis.

WO 2005/063754 PCT/IB2004/004059 -38- VA Functional Assay; Inhibition of AVP VIA-R mediated Ca2+ mobilization by FLIPR (Fluorescent Imaging Plate Reader) (Molecular Devices) Intracellular calcium release was measured in CHO-hV1A cells using FLIPR, which allows the rapid detection of calcium following receptor activation. The CHO-hV1A cell line was kindly provided under a licensing agreement by Marc Thibonnier, Dept. of Medicine, Case Western Reserve University School of Medicine, Cleveland, Ohio. CHO-VA cells were routinely maintained at 370C in humidified atmosphere with 5% CO2 in DMEM/Hams F12 nutrient mix supplemented with 10 fetal bovine serum, 2 mM Lglutamine, 15 mM HEPES and 400 pg/ml G418. On the afternoon before the assay cells were plated at a density of 20,000 cells per well into black sterile 96-well plates with clear bottoms to allow cell inspection and fluorescence measurements from the bottom of each well. Wash buffer containing Dulbecco's phosphate buffered saline (DPBS) and mM probenecid and loading dye consisting of cell culture medium containing 4 pM Fluo-3-AM (dissolved in DMSO and pluronic acid),(Molecular Probes) and 2.5 mM probenecid was prepared fresh on the day of assay. Compounds were solubilised in DMSO and diluted in assay buffer consisting of DPBS containing 1% DMSO, 0.1% BSA and 2.5 mM probenecid. The cells were incubated with 100 pl loading dye per well for 1 hour at 370C in humidified atmosphere with 5% C02. After dye loading the cells were washed three times in 100 pl wash buffer using a Denley plate washer. 100 pl wash buffer was left in each well. Intracellular fluorescence was measured using FLIPR.

Fluorescence readings were obtained at 2s intervals with 50 pl of the test compound added after 30s. An additional 155 measurements at 2s intervals were then taken to detect any compound agonistic activity. 50 pl of arginine vasopressin (AVP) was then added so that the final assay volume was 200 pl. Further fluorescence readings were collected at ls intervals for 120s. Responses were measured as peak fluorescence intensity For pharmacological characterization a basal Fl was subtracted from each fluorescence response. For AVP dose response curves, each response was expressed as a of the response to the highest concentration of AVP in that row. For determinations each response was expressed as a of the response to AVP. values were converted to a modified Kb value using the Cheng-Prusoff equation which takes into account the agonist concentration, the agonist EC 50 and the slope: Kb=ICso/(2+[A]/Aso]n)In_-1 where is the concentration of AVP, A 50 is the EC5o of AVP from the dose response curve and n=slope of the AVP dose response curve.

The compounds of the invention may be administered alone or in combination with one or more other compounds of the invention or in combination with one or more other WO 2005/063754 PCT/IB2004/004059 -39drugs (or as any combination thereof). The compounds of the present invention may be administered in combination with an oral contraceptive. Thus in a further aspect of the invention, there is provided a pharmaceutical product containing an Via antagonist and an oral contraceptive as a combined preparation for simultaneous, separate or sequential use in the treatment of dysmenorrhoea.

The compounds of the present invention may be administered in combination with a inhibitor. Thus in a further aspect of the invention, there is provided a pharmaceutical product containing a Via antagonist and a PDEV inhibitor as a combined preparation for simultaneous, separate or sequential use in the treatment of dysmenorrhoea.

PDEV inhibitors useful for combining with Via antagonists include, but are not limited to: The PDE5 inhibitors mentioned in International Patent Application publication nos. W003/000691; W002/64590; W002/28865; W002/28859; W002/38563; W002/36593; W002/28858; W002/00657; W002/00656; W002/10166; W002/00658; WO01/94347; WO01/94345; WOOO/15639 and WO00/15228; (ii) The PDE5 inhibitors mentioned in US Patents 6,143,746; 6,143,747 and 6,043,252; (iii) the pyrazolo [4,3-d]pyrimidin-7-ones disclosed in EP-A-0463756; the pyrazolo [4,3-d]pyrimidin-7-ones disclosed in EP-A-0526004; the pyrazolo [4,3d]pyrimidin-7-ones disclosed in published international patent application WO 93/06104; the isomeric pyrazolo [3,4-d]pyrimidin-4-ones disclosed in published international patent application WO 93/07149; the quinazolin-4ones disclosed in published international patent application WO 93/12095; the pyrido [3,2-d]pyrimidin-4-ones disclosed in published international patent application WO 94/05661; the purin-6-ones disclosed in published international patent application WO 94/00453; the pyrazolo [4,3-d]pyrimidin-7ones disclosed in published international patent application WO 98/49166; the pyrazolo [4,3-d]pyrimidin-7-ones disclosed in published international patent application WO 99/54333; the pyrazolo [4,3-d]pyrimidin-4-ones disclosed in EP-A-0995751; the pyrazolo [4,3-d]pyrimidin-7-ones disclosed in published international patent application WO 00/24745; the pyrazolo [4,3-d]pyrimidin-4ones disclosed in EP-A-0995750; the hexahydropyrazino [2',1':6,1]pyrido [3,4b]indole-1,4-diones disclosed in published international application W095/19978; the pyrazolo [4,3-d]pyrimidin-4-ones disclosed in WO00/27848; the imidazo[5,1-f][1,2,4]triazin-ones disclosed in EP-A-1092719 and in WO 2005/063754 PCT/IB2004/004059 published international application WO 99/24433 and the bicyclic compounds disclosed in published international application WO 93/07124; the pyrazolo [4,3-d]pyrimidin-7-ones disclosed in published international application WO 01/27112; the pyrazolo [4,3-d]pyrimidin-7-ones disclosed in published international application WO 01127113; the compounds disclosed in EP-A- 1092718 and the compounds disclosed in EP-A-1092719; the tricyclic compounds disclosed in EP-A-1241170; the alkyl sulphone compounds disclosed in published international application WO 02/074774; the compounds disclosed in published international application Wa 02/072586; the compounds disclosed in published international application WO 02/079203 and the compounds disclosed in WO 02/074312.

(iv) Preferably 5-[2-ethoxy-5-(4-methyl-1 -piperazinylsulphonyl)phenyl]-l1-methyl-3n-propyl-1, ,6-d ihyd ro-7 H-pyrazolo[4,3-d]pyri mid in-7-one (sildenafil, e.g. as sold as Viagra®) also known as 1 -[[3-(6,7-dihydro-l1-methyl-7-oxo-3-propyl-1 Hpyrazolo[4,3-djpyrimid in-5-yl)-4-ethoxyphenyl]sul phonyl]-4-methylpiperazine (see E P-A-0463756);5-(2-ethoxy-5-morpholinoacetylphenyl)-1 -methyl-3-npropyl- 1, ,6-d i hyd ro-7H-pyrazolo[4, 3-d] pyri mid in-7-one (see EP-A-0526004);3ethyl-5-[5-(4-ethylpiperazin-1 -ylsul phonyl)-2-n-propoxyphenyl]-2-(pyridin-2yl)methyl-2,6-d ihyd ro-7 H-pyrazolo[4,3-d]pyri mid i n-7-one (see W098/49 166); 3-ethyl-5-[5-(4-ethylpiperazin- 1 -ylsulphonyl)-2-(2methoxyethoxy)pyridin-3-yl]-2-(pyridin-2-yl)methyl-2,6-dihyd ro-7Hpyrazolo[4,3-d]pyrimid in-7-one(see W099/54333); ethylpiperazin- 1 -ylsulphonyl)-2-(2-methoxy-1 (R)-methylethoxy)pyrid in-3-yl]-2methyl-2 ,6-dihyd ro-7H-pyrazolo[4 ,3-d]pyrimidi n-7-one, also known as 3-ethyl- 5-{5-[4-ethyl piperazin-1 -ylsulphonyl]-2-([( 1 R)-2-methoxy-1 methylethyl]oxy)pyridi n-3-yl}-2-methyl-2,6-dihyd ro-7H-pyrazolo[4,3-d] pyrimidin-7-one (see W099/54333);5-[2-ethoxy-5-(4-ethylpiperazi n-i ylsulphonyl)pyrid in-3-yl]-3-ethyl-2-[2-methoxyethyl]-2,6-dihydro-7Hpyrazolo[4,3-d] pyrimid in-7-one, also known as 1 -{6-ethoxy-5-[3-ethyl-6 .7d ihyd ro-2-(2-methoxyethyl)-7-oxo-2H-pyrazolo[4,3-d] pyri mid in-5-yl]-3pyridylsu lphonyl}-4-ethylpiperazine (see WO 01/27113, Example 8);5-[2-iso- Butoxy-5-(4-ethylpiperazin-1 -ylsulphonyl)pyridin-3-yl]-3-ethyl-2-( 1methyl p iperid in-4-yl)-2 ,6-di hydro-7 H-pyrazolo[4,3-d]pyri mid i n-7-one(see WO 01/27113, Example 1 5);5-[2-Ethoxy-5-(4-ethylpiperazin-1 -ylsulphonyl)pyridin- 3-yl]-3-ethyl-2-phenyl-2,6-dihyd ro-7H-pyrazolo[4,3-d]pyrimid in-7-one (see WO 01/27113, Example 66); 5-(5-Acetyl-2-propoxy-3-pyridi nyl)-3-ethyl-2-( 1isopropyl-3-azetidinyl)-2,6-d ihydro-7H-pyrazolo[4,3-djpyrimidin-7-one (see WO 2005/063754 PCT/IB2004/004059 -41- WO 01/27112, Example 124); 5-(5-Acetyl-2-butoxy-3-pyrid inyl)-3-ethyl-2-( 1ethyl-3-azetid inyl)-2,6-d ihyd ro-7H-pyrazolo[4 pyrimidin-7-one (see WO 01/27112, Example 132); (6R,l2aR)-2,3,6,7,12, 12a-hexahydro-2-methyl-6- (3,4-methylenedioxyphenyl)pyrazino[2',1 ]pyrido[3,4-b]indole-1 ,4-dione (tadalafil, IC-351, Cialis®), i.e. the compound of examples 78 and 95 of published international application W095/19978, as well as the compound of examples 1, 3, 7 and 8; 2-[2-ethoxy-5-(4-ethyl-piperazin-1-yl-sulphonyl)phenyl]-5-methyl-7-propyl-3H-imidazo[5, 1-f][1 ,2,4]triazin-4-one (vardenafil, LEVITRA also known as 1 ,4-di hyd ro-5-methyl-4-oxo-7propylimidazo[5,1 -f]-as-triazin-2-yl)-4-ethoxyphenyl]sulphonyl]-4ethyl pi perazi ne, i.e. the compound of examples 20, 19, 337 and 336 of published international application WO99f24433;the compound of example 11 of published international application W093/07124 (EISAI); compounds 3 and 14 from Rotella D P, J. Med. Chem., 2000, 43, 1257; 4-(4chlorobenzyl)amino-6,7,8-trimethoxyquinazoline; N-[[3-(4,7-dihydro-1 -methyl- 7-oxo-3-propyl- I H-pyrazolo[4,3-d]-pyri midin-5-yl)-4-propxyphenyl]sulfonyl]- 1methyl2-pyrrolidinepropanamide ["DA-81 59" (Example 68 of WOOO/27848)]; and 7,8-dihydro-8-oxo-6-[2-propoxyphenyl]-1 H-imidazo[4,5-g]quinazoline and I -[(4-fluorophenyl)methyl]-7 ,8-dihydro-8-oxo-1 g]q u inazol in-6-yl]-4-propoxyp henyl] carboxa mid e.

4-bromo-5-(pyridyl methylamino)-6-[3-(4-chlorophenyl)-propoxy]- 3(2H)pyridazi noneI 1 ,3-benzodioxol-5-ylmethyl)amiono]-6-chloro-2quinozolinyl]-4-piperidine-carboxylic acid, monosodium salt; 5,6a ,7,9,9,9a-hexahydro-2-[4-(trifl uoromethyl cyclopent-4,5]imidazo[2, 1-b]purin-4(3H)one; furazlocillin; 3,4,5,6a,7,8,9,9a- octahydrocyclopent[4,5]-imidazo[2, 1-b]purin-4-one; 3acetyl-lI-(2-chlorobenzyl)-2-propyli ndole-6- carboxylate; 3-acetyl-1 ch lorobenzyl )-2-propylindole-6-carboxylate; 4-bromo-5-(3pyridylmethylamino)-6-(3-(4-chlorophenyl) propoxy)-3- (2 H)pyridazi none; Imethyl-5(5-morpholinoacetyl-2-n-propoxyphenyl)-3-n-propyl-1 ,6-d ihydro- 7Hpyrazolo(4, 3-d )pyri mid in-7-one; 1 1, 3-benzod ioxol-5-ylmethyl )arnino]-6chloro-2- quinazolinyl]-4-piperidinecarboxylic acid, monosodium salt; Pharmaprojects No. 4516 (Glaxo Wellcome); Pharmaprojects No. 5051 (Bayer); Pharmaprojects No. 5064 (Kyowa Hakko; see WO 96/26940); Pharmaprojects No. 5069 (Schering Plough); GF-196960 (Glaxo Wellcome); E-801 0 and E-401 0 (Eisai); Bay-38-3045 38-9456 (Bayer); FR229934 and FR226807 (Fujisawa); and Sch-51866.

WO 2005/063754 PCT/IB2004/004059 -42- The contents of the published patent applications and journal articles and in particular the general formulae of the therapeutically active compounds of the claims and exemplified compounds therein are incorporated herein in their entirety by reference thereto.

Preferably the PDEV inhibitor is selected from sildenafil, tadalafil, vardenafil, DA-8159 and 5-[2-ethoxy-5-(4-ethylpiperazin-1-ylsulphonyl)pyridin-3-yl]-3-ethyl-2-[2-methoxyethyl]- 2,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one.

Most preferably the PDE5 inhibitor is sildenafil and pharmaceutically acceptable salts thereof. Sildenafil citrate is a preferred salt.

The compounds of the present invention may be administered in combination with an NO donor. Thus in a further aspect of the invention, there is provided a pharmaceutical product containing a Via antagonist and a NO donor as a combined preparation for simultaneous, separate or sequential use in the treatment of dysmenorrhoea.

The compounds of the present invention may be administered in combination with Larginine, or as an arginate salt. Thus in a further aspect of the invention, there is provided a pharmaceutical product containing a Via antagonist and L-arginine as a combined preparation for simultaneous, separate or sequential use in the treatment of dysmenorrhoea.

The compounds of the present invention may be administered in combination with a COX inhibitor. Thus in a further aspect of the invention, there is provided a pharmaceutical product containing a Via antagonist and a COX inhibitor as a combined preparation for simultaneous, separate or sequential use in the treatment of dysmenorrhoea.

COX inhibitors useful for combining with the compounds of the present invention include, but are not limited to: ibuprofen, naproxen, benoxaprofen, flurbiprofen, fenoprofen, fenbufen, ketoprofen, indoprofen, pirprofen, carprofen, oxaprozin, prapoprofen, miroprofen, tioxaprofen, suprofen, alminoprofen, tiaprofenic acid, fluprofen, bucloxic acid, indomethacin, sulindac, tolmetin, zomepirac, diclofenac, fenclofenec, alclofenac, ibufenac, isoxepac, furofenac, tiopinac, zidometacin, acetyl salicylic acid, indometacin, piroxicam, tenoxicam, nabumetone, ketorolac, azapropazone, mefenamic acid, tolfenamic acid, WO 2005/063754 PCT/IB2004/004059 -43diflunisal, podophyllotoxin derivatives, acemetacin, droxicam, floctafenine, oxyphenbutazone, phenylbutazone, proglumetacin, acemetacin, fentiazac, clidanac, oxipinac, mefenamic acid, meclofenamic acid, flufenamic acid, niflumic acid, flufenisal, sudoxicam, etodolac, piprofen, salicylic acid, choline magnesium trisalicylate, salicylate, benorylate, fentiazac, clopinac, feprazone, isoxicam and 2-fluoro-a-methyl[1,1'-biphenyl]-4-acetic acid, 4- (nitrooxy)butyl ester (See Wenk, et al., Europ. J. Pharmacol. 453:319-324 (2002)); (ii) meloxicam, (CAS registry number 71125-38-7; described in U.S. Patent No. 4,233,299), or a pharmaceutically acceptable salt or prodrug thereof; (iii) Substituted benzopyran derivatives that are described in U.S. Patent No.

6,271,253. Also benzopyran derivatives described in U.S. Patent Nos.

6,034,256 and 6,077,850 along with International Publication No's WO 98/47890 and WO 00/23433; (iv) Chromene COX2 selective inhibitors described in U.S. Patent No.

6,077,850 and U.S. Patent No. 6,034,256; The compounds described in International Patent Application Publication No's WO 95/30656, WO 95/30652, WO 96/38418 and WO 96/38442, and the compounds described in European Patent Application Publication No.

799823, along with the pharmaceutically acceptable derivatives thereof; (vi) celecoxib (US Patent No. 5,466,823), valdecoxib (US Patent No.

5,633,272), deracoxib (US Patent No. 5,521,207), rofecoxib (US Patent No.

5,474,995), etoricoxib (International Patent Application Publication No. WO 98/03484), JTE-522 (Japanese Patent Application Publication No.

9052882), or a pharmaceutically acceptable salt or prodrug thereof; (vii) Parecoxib (described in U.S. Patent No. 5,932,598), which is a therapeutically effective prodrug of the tricyclic Cox-2 selective inhibitor valdecoxib (described in U.S. Patent No. 5,633,272), in particular sodium parecoxib; (viii) ABT-963 (described in International Patent Application Publication No. WO 00/24719) (ix) Nimesulide (described in U.S. Patent No. 3,840,597), flosulide (discussed in J. Carter, Exp.Opin.Ther.Patents, 21-29 (1997)), NS-398 (disclosed in U.S. Patent No. 4,885,367), SD 8381 (described in U.S. Patent No.

6,034,256), BMS-347070 (described in U.S. Patent No. 6,180,651), S-2474 (described in European Patent Publication No. 595546) and MK-966 (described in U.S. Patent No. 5,968,974); WO 2005/063754 PCT/IB2004/004059 -44- The compounds and pharmaceutically acceptable derivatives described in U.S. Patent No. 6,395,724, U.S. Patent No. 6,077,868, U.S. Patent No.

5,994,381, U.S. Patent No. 6,362,209, U.S. Patent No. 6,080,876, U.S.

Patent No 6,133,292, U.S. Patent No. 6, 369,275, U.S. Patent No.

6,127,545, U.S. Patent No. 6,130,334, U.S. Patent No. 6,204,387, U.S.

Patent No. 6,071,936, U.S. Patent No. 6,001,843, U.S. Patent No.

6,040,450, International Patent Application Publication No WO 96/03392, International Patent Application Publication No WO 96/24585, U.S. Patent No. 6,340,694, U.S. Patent No. 6,376,519, U.S. Patent No. 6,153,787, U.S.

Patent No. 6,046,217, U.S. Patent No. 6,329,421, U.S. Patent No.

6,239,137, U.S. Patent No. 6,136,831, U.S. Patent No. 6,297,282, U.S.

Patent No. 6,239,173, U.S. Patent No. 6,303,628, U.S. Patent No.

6,310,079, U.S. Patent No. 6,300,363, U.S. Patent No. 6,077,869, U.S.

Patent No. 6,140,515, U.S. Patent No. 5,994,379, U.S. Patent No.

6,028,202, U.S. Patent No. 6,040,320, U.S. Patent No. 6,083,969, U.S.

Patent No 6,306,890, U.S. Patent No. 6,307,047, U.S. Patent No.

6,004,948, U.S. Patent No. 6,169,188, U.S. Patent No. 6,020,343, U.S.

Patent No. 5,981,576, U.S. Patent No. 6,222,048, U.S. Patent No.

6,057,319, U.S. Patent No. 6,046,236, U.S. Patent No. 6,002,014, U.S.

Patent No. 5,945,539, U.S. Patent No. 6,359,182, International Patent Application Publication No. WO 97/13755, International Patent Application Publication No. WO 96/25928, International Patent Application Publication No. WO 96/374679, International Patent Application Publication No. WO 95/15316, International Patent Application Publication No. WO 95/15315, International Patent Application Publication No. WO 96/03385, International Patent Application No. WO 95/00501, International Patent Application No.

WO 94/15932, International Patent Application Publication No. WO 95/00501, International Patent Application Publication No. WO 94/27980, International Patent Application Publication No. WO 96/25405, International Patent Application Publication No. WO 96/03388, International Patent Application Publication No. WO 96/03387, U.S. Patent No. 5,344,991, International Patent Application Publication No. WO 95/00501, International Patent Application Publication No. WO 96/16934, International Patent Application Publication No. WO 96/03392, International Patent Application Publication No. WO 96/09304, International Patent Application Publication No. WO 98/47890, and International Patent Application Publication No. WO 00/24719.

WO 2005/063754 PCT/IB2004/004059 The contents of any of the patent applications, and in particular the general formulae of the therapeutically active compounds of the claims and exemplified compounds therein, are incorporated herein in their entirety by reference thereto.

The following Preparations and Examples illustrate the preparation of compounds of formula 1H Nuclear magnetic resonance (NMR) spectra were in all cases consistent with the proposed structures. Characteristic chemical shifts are given in parts-per-million downfield from tetramethylsilane using conventional abbreviations for designation of major peaks: e.g. s, singlet; d, doublet; t, triplet; q, quartet; m, multiplet; br, broad. The mass spectra were recorded using either electrospray ionisation (ESI) or atmospheric pressure chemical ionisation (APCI). The following abbreviations have been used for common solvents: CDC13, deuterochloroform; De-DMSO, deuterodimethylsulphoxide; CD 3 0D, deuteromethanol; THF, tetrahydrofuran.

"Ammonia" refers to a concentrated solution of ammonia in water possessing a specific gravity of 0.88. Where thin layer chromatography (TLC) has been used it refers to silica gel TLC using silica gel 60 F254 plates, Rf is the distance traveled by a compound divided by the distance traveled by the solvent front on a TLC plate. When microwave radiation is employed, the two microwaves used are the Emrys Creator and the Emrys Liberator, both supplied by Personal Chemistry Ltd. The power range is 15-300W at 2.45GHz. The actual power supplied varies during the course of the reaction in order to maintain a constant temperature.

Preparation 1: 4-(5-Methyl-[1,3,4]oxadiazol-2-yl)-piperidine-1-carboxylic acid tert-butyl ester:

O

To a solution of 9.0 g of 4-Hydrazinocarbonyl-piperidine-l-carboxylic acid tert-butyl ester (see reference WO 9703986 Al 19970206) (37 mmoles, 1 eq.) in 40 ml of THF, were added 8.1 ml of dimethylformamide dimethyl acetal (55.4 mmoles, 1.5 The reaction mixture was then stirred at 500C for 4 hours under nitrogen. The solvent was removed under reduced pressure, the residue dissolved in 40 ml of toluene, and 400 mg of para toluene sulfonic acid were added. The mixture was then heated at 1000C under nitrogen for 18 hours, the volatiles were removed under reduced pressure and the WO 2005/063754 PCT/IB2004/004059 -46residue was partitioned between methylene chloride and an aqueous solution of sodium bicarbonate. The organic phase was dried over magnesium sulfate and filtered. The volatiles were removed under reduced pressure and the residue was purified by column chromatography on silica gel using methylene chloride/methanol as eluant (98:2 v/v to 95:5 v/v) to afford 8.07 g of the title compound as a white solid 'H NMR (400MHz, CD 3 OD): 5 1.42 9H), 1.70 2H), 2.05 2.50 3H), 3.00 2H), 3.15 1H), 4.05 2H); LCMS: m/z APCI' 268 Found; C, 58.26%; H, 7.96%; N, 15.78%; C13H21N303 requires C, 58.41%, H, 7.92%, N, 15.72% Preparation 2a: 4-[4-(4-Chloro-phenyl)-5-methyl-4H-[1,2,4]triazol-3-yl]-piperidine:

"N

N C1

H

g of the compound of preparation 1 (15 mmoles, 1 eq.) were dissolved in 100 ml of toluene. 2.1 g of para chloro aniline (16.5 mmoles, 1.1 eq.) were added, followed by 2 ml of TFA. The solution was heated at 1100C for 16 hours, 2 ml of TFA were added, and the solution was heated at 1100C for a further 48 hours. The reaction mixture was then cooled, an aqueous solution of sodium bicarbonate added and the organic phase was decanted. The aqueous phase was basified with potassium carbonate and extracted four times with methylene chloride (50 ml). The methylene chloride solution was dried over magnesium sulfate and the solvent was removed in vacuo, to afford 2.90 g of the title compound as a white solid.

1 H NMR (400MHz, CDCI 3 8 1.60-2.00 2.20 3H), 2.40-2.80 3.10 (m, 2H), 7.10 2H), 7.55 2H); LCMS: m/zAPCI 277 [MH]' Preparation 2b: 4-[4-(4-Chlorophenyl)-5-methyl-4H-1,2,4-triazol-3-yl]piperidine hydrochloride N

CH,

N

N HCI Hydrochloric acid in dioxan (4M, 10 mL) was added to a cooled (50C) solution of the compound of preparation 1 (1.32 g, 4.76 mmol) in methanol (30 mL), and the solution was allowed to warm to room temperature with stirring for a further 90 minutes. Tic WO 2005/063754 PCT/IB2004/004059 -47analysis showed that starting material remained, so additional hydrochloric acid in dioxan (4M, 10 mL) was added and the reaction was stirred for a further 4 hours. The mixture was concentrated under reduced pressure and the residue was azeotroped with toluene (3x) to afford the title compound, 1.4 g.

1 H NMR (400MHz, DMSO-d 6 8 1.86 4H), 2.25 3H), 2.80-2.97 3H), 3.22 (m, 2H), 7.64 2H), 7.77 2H).

Preparation 3: 1-(3-Chloro-benzoyl)-piperidine-4-carboxylic acid ethyl ester CI

CH,

o 0 A solution of ethyl isonipecotate (27.6 g, 175 mmol) in dichloromethane (50 ml) was added dropwise over 10 minutes to a solution of 3-chlorobenzoyl chloride (20 ml, 160 mmol) and triethylamine (28 ml, 200 mmol) in dichloromethane (500 ml) cooled to between 10 and 15°C. The reaction was then stirred at room temperature for 3 hours and concentrated under reduced pressure. The residue was diluted with ether, the solution washed with 1N hydrochloric acid, sodium carbonate solution (x3) and brine. It was then dried over MgSO 4 and evaporated under reduced pressure, to give the title compound as a solid, 44.4 g.

1 H NMR (400MHz, CDCI 3 6 1.24 3H), 1.62-2.10 4H), 2.58 1H), 2.98-3.16 (m, 2H), 3.70 1H), 4.15 2H), 4.49 1H), 7.24 1H), 7.31-7.40 3H). LRMS: m/z (APCIl) 296 [MH]' Preparation 4: 1-(3-Chloro-benzoyl)-piperidine-4-carboxylic acid hydrazide 00 A mixture of the ester of preparation 3 (44.4 g, 0.15 mol) and hydrazine hydrate (30 ml, 0.58 mol) in methanol (120 ml) was heated under reflux for 10 hours, and then allowed to cool to room temperature. The mixture was concentrated under reduced pressure and the product crystallised from ethyl acetate/ether to afford the title compound as a solid, 32.5 g.

'H NMR (400MHz, CDCIs): 8 1.62-1.98 4H), 2.36 1H), 2.78-3.09 2H), 3.64- 4.00 2H), 4.65 1H), 7.04 1H), 7.26 1H), 7.36 3H). LRMS m/z (APCI 282 [MH] WO 2005/063754 PCT/IB2004/004059 -48- Preparation 5: 1-(3-Chloro-benzoyl)-piperidine-4-carboxylic acid N'-(2-chloro-acetyl)hydrazide 0 CH -C 0 0 Acetyl chloride (4.3 ml, 53 mmol) was added dropwise, over 30 minutes, to an ice-cooled solution of the hydrazide of preparation 4 (10 g, 35.5 mmol) and N-methyl morpholine (5.4 g, 53 mmol) in dichloromethane (200 ml), in order to maintain the internal temperature below 10 0 C. The reaction mixture was then allowed to warm to room temperature and was stirred for a further 18 hours. The reaction was diluted with ethyl acetate, washed with saturated sodium bicarbonate solution, and then brine. The solution was dried over MgSO 4 concentrated under reduced pressure and the residue was triturated with ether to afford the title compound as a white solid, 10.2 g.

1 H NMR (400MHz, CD 3 OD): 8 1.66-1.84 3H), 1.98 1H), 2.61 1H), 2.99 (m, 1H), 3.19 1H), 3.74 1H), 4.14 2H), 4.60 1H), 7.35 (dd, 1H), 7.46 3H).

LRMS m/z 358 [MH]' Preparation 6: [4-(5-Chloromethyl-[1,3,4]oxadiazol-2-yl)-piperidin-1-yl]-(3-chlorophenyl)-methanone ci

O

o ci Trifluoroacetic anhydride (9.45 ml, 57 mmol) was added dropwise over 30 minutes to a cooled solution (0 to 50C) of the compound of preparation 5 (10.2 g, 28.5 mmol) and pyridine (11.5 ml, 142.5 mmol) in dichloromethane (300 ml). Once the addition was complete, the resulting pink suspension was stirred for a further 90 minutes at The reaction mixture was poured carefully into saturated sodium bicarbonate solution (600 ml), and the layers were separated. The organic phase was washed with further saturated sodium bicarbonate solution dried over MgSO 4 and treated with decolourising charcoal. The mixture was then filtered and the filtrate evaporated under reduced pressure to afford the title compound, 13 g.

1 H NMR (400MHz, CD 3 OD): 8 1.80-1.97 2H), 2.08 1H), 2.22 1H), 3.15-3.40 3H), 3.76 1H), 4.56 1H), 4.84 2H), 7.37 1H), 7.48 3H). LRMS: m/z (APCI) 340 [MH] WO 2005/063754 PCT/IB2004/004059 -49- Preparation 7 4-[N'-(2-Chloro-acetyl)-hydrazinocarbonyl]-piperidine-l-carboxylic acid tert-butyl ester 0 H HO N H 0C O H0 C H 3

N

4-Hydrazinocarbonyl-piperidine-l-carboxylic acid tert-butyl ester (see reference WO 2000039125, prep 27)(25 g, 103 mmol) was dissolved in dichloromethane (300 ml) and 4-methylmorpholine (12.5 ml, 113 mmol) was then added. The mixture was cooled using an ice bath and chloroacetyl chloride (8.2 ml, 103 mmol) was added dropwise.

The reaction was then allowed to warm to room temperature and was stirred for 4 hours.

The reaction mixture was partitioned with aqueous sodium hydrogen carbonate solution, dried over magnesium sulphate, filtered and the filtrate was evaporated to give the title compound as an off white solid (29.6 g).

LRMS m/z APCI 318 [M-H] Preparation 8: 4-(5-Chloromethyl-[1,3,4]oxadiazol-2-yl)-piperidine-1-carboxylic acid tertbutyl ester

N-

/'ci The hydrazide of preparation 7 (5.0 g, 15.6 mmol) was suspended in dichloromethane (200 ml) and then pyridine (6.4 ml, 78 mmol) was added before cooling the mixture to 0 C. Trifluoroacetic anhydride (6.6 ml, 39 mmol) was added dropwise over 15 minutes and then the mixture was stirred at room temperature for 3 hours. The reaction was then partitioned with water (50ml), the organic layer was dried over magnesium sulphate, filtered and the filtrate was evaporated under reduced pressure. The residue was purified by chromatography on silica gel using methanol in dichloromethane as eluant (2:98) to afford the title compound as a white solid (2.95 g).

1 H NMR (400MHz, CDaOD): 8 1.45 9H), 1.74 2H), 2.19 2H), 3.04 2H), 3.24 1H), 4.09 2H), 4.85 2H) WO 2005/063754 PCT/IB2004/004059 Preparation 9a: 4-(5-[1,2,3]Triazol-2-ylmethyl-[1,3,4]oxadiazol-2-yl)-piperidine-1carboxylic acid tert-butyl ester and 4-(5-[1,2,3]Triazol-1-ylmethyl-[1,3,4]oxadiazol-2-yl)-piperidine-1-carboxylic acid tert-butyl ester N-N

N-N

3a3C30 A mixture of the compound of preparation 8 (8 g, 26.5 mmol), triazole (3.7 g, 53 mmol) and potassium carbonate (5.2 g, 38 mmol) in N,N-dimethylformamide (60 ml) was stirred at room temperature for 18 hours. The mixture was then filtered, and the filtrate was concentrated under reduced pressure. The residue was partitioned between ethyl acetate and brine, the layers were separated and the organic solution was dried over MgSO 4 and concentrated under reduced pressure to afford the title compounds as a mixture of isomers.

H NMR (400MHz, CDaOD): 8 1.43 9H), 1.62-1.78 2H), 2.02 2H), 3.00 (m, 2H), 3.19 1H), 4.03 2H), 5.95, 5.99 (2xs, 2H), [7.77 7.80 8.18 total 2H].

Preparation 9b: 4-(5-[1,2,3]Triazol-2-ylmethyl-[1,3,4]oxadiazol-2-yl)-piperidine-1 carboxylic acid tert-butyl ester Dichloromethane (500 mL) was added to a suspension of the hydrazide of preparation 170 (132.3 g, 375 mmol) in 1-methylimidazole (120 mL), and the resulting solution was cooled in an ice/acetone-bath. Triflic anhydride (92 mL, 561 mmol) was added dropwise over 2.5 hours, in order to maintain the reaction temperature below 0°C. Once the addition was complete, the reaction was stirred for a further 20 minutes. It was then quenched by the addition of 2M hydrochloric acid (350mL). The phases were separated and the aqueous layer was extracted with dichloromethane (200 mL). The combined organic solutions were washed with brine, dried over MgS0 4 and evaporated under reduced pressure. The residue was purified by column chromatography on silica gel using dichloromethane as eluant to afford the title compound as a viscous oil.

WO 2005/063754 PCT/IB2004/004059 -51- Preparation 10: (3-Chloro-phenyl)-[4-(5-[1,2,3]triazol-2-ylmethyl-[1,3,4]oxadiazol-2-yl)piperidin-1-yl]-methanone

N-N

Ci N N- N o\J-- A mixture of the compound of preparation 6 (2 g, 5.9 mmol), triazole (810 mg, 11.75 mmol) and potassium carbonate (1.2 g, 8.85 mmol) in acetonitrile (20 ml) was stirred at room temperature for 30 minutes, followed by a further hour at 50 0 C. The reaction mixture was filtered, washed through with ethyl acetate and the filtrate was concentrated under reduced pressure. The residual brown oil was partitioned between ethyl acetate and water, the layers were separated, and the organic phase was washed with additional water, then brine. The solution was dried over MgSO 4 and evaporated under reduced pressure. The crude product was purified by column chromatography on silica gel using dichloromethane:methanol (100:0 to 95:5) to afford the title compound, (202 mg).

1 H NMR (400MHz, CD3OD): 8 1.76-1.90 2H), 2.02 1H), 2.18 1H), 3.12-3.38 3H), 3.72 1H), 4.50 1H), 5.97 2H), 7.37 (dd, 1H), 7.41-7.51 3H), 7.78 2H). LRMS m/z 373, 375 [MH]+ Preparation 11a: 4-[4-(4-Chloro-phenyl)-5-[1,2,3]triazol-2-ylmethyl-4H-[1,2,4]triazol-3yl]-piperidine-1-carboxylic acid tert-butyl ester

N._'N

N-N

N

HC CH 3 0 CI Trifluoroacetic acid (1 ml, 13.2 mmol) was added to a solution of the compounds of preparation 9a (8.8 g, 26.5 mmol) and 4-chloroaniline (5 g, 39.75 mmol) in toluene (200 ml) and the reaction mixture was stirred at reflux for 5 hours, The cooled mixture was diluted with dichloromethane, then washed with 1N sodium hydroxide solution and brine, and evaporated under reduced pressure. The residual brown oil was purified by column chromatography on silica gel using an elution gradient of dichloromethane:methanol:0.88 ammonia (100:0:0 to 90:10:1) and then re-columned using ethyl acetate:methanol:0.88 ammonia (100:0:0 to 90:10:1) to afford the title compound, (2.3 g).

WO 2005/063754 PCT/IB2004/004059 -52- 'H NMR (400MHz, CD 3 OD): 8 1.42 9H), 1.68-1.82 4H), 2.62-2.78 3H), 4.08 2H), 5.70 2H), 7.24 2H), 7.56 2H), 7.59 2H); LRMS m/z (APCI') 444

[MH]

Preparation 11b: 4-[4-(4-chloro-phenyl)-5-[1,2,3]triazol-2-ylmethyl-4H-[1,2,4]triazol-3-yl]piperidine-1-carboxylic acid tert-butyl ester N-Methylimidazole (4.66 g, 56.75 mmol) and dichloromethane (20 ml) were added to the bis-acyl hydrazide from preparation 170 (5.00 g, 14.19 mmol), and the resulting solution was cooled to -20°C. Trifluoromethanesulfonic acid anhydride (6.00 g, 21.28 mmol) was added, keeping the temperature below 0°C. Upon completion of the addition, the reaction was warmed to ambient temperature and stirred for 15 hours. The reaction was quenched with H 2 0 (10 ml), the phases were separated and the aqueous layer was reextracted with dichloromethane (10 ml). The combined organic phases were dried over magnesium sulphate, filtered, and the dichloromethane was distilled and replaced with toluene under vacuum to give a toluene solution of the intermediate oxadiazole (-20 ml volume). 4-Chloroaniline (1.90 g, 14.90 mmol) was added to the toluene solution followed by trifluoroacetic acid (0.81 g, 7.09 mmol) and the reaction was stirred at 85 0

C

for 5.5 hours. The mixture was cooled to ambient temperature and stirred with 1.8N aqueous ammonia (14 ml) for 5 minutes. The phases were separated, the organic phase was diluted with tert-butyl methyl ether (20ml) and then stirred for 15 hours. The resulting solid precipitate was collected by filtration, washing with tert-butyl methyl ether (2 x 5 ml), to give the title compound as a beige coloured solid (2.72 1 H NMR (400MHz, CDCI 3 8 1.43 9H), 1.72 2H), 1.85 (bm, 2H), 2.56 1H), 2.66 (bm, 2H), 4.09 (bd, 2H), 5.64 2H), 7.01 2H), 7.43 2H), 7.50 2H).

Preparation 12a: 4-[4-(4-Chloro-phenyl)-5-[1,2,3]triazol-2-ylmethyl-4H-[1,2,4]triazol-3yl]-piperidine <Nr

NN

H CI 4M Hydrochloric acid in dioxan (10 ml) was added to a solution of the compound of preparation 11a (2.3 g, 5.2 mmol) in methanol (30 ml), and the reaction was stirred at room temperature for 2 hours. The solution was concentrated under reduced pressure, the residue was diluted with dichloromethane and basified with 1N sodium hydroxide WO 2005/063754 PCT/IB2004/004059 -53solution to pH 10, and the layers were separated. The aqueous phase was re-extracted with dichloromethane and the combined organic solutions were dried over MgSO 4 and concentrated under reduced pressure to afford the title compound as a foam, (1.65 g).

'H NMR (400MHz, CD 3 OD): 8 1.79 4H), 2.48 2H), 2.65 1H), 3.02 2H), 5.70 2H), 7.22 2H), 7.55 2H), 7.59 2H); LRMS m/z (APCI') 344 [MH] Preparation 12b: 4-[4-(4-Chloro-phenyl)-5-[1,2,3]triazol-2-ylmethyl-4H-[1,2,4]triazol-3yl]-piperidine bis p-toluenesulfonate salt N

N

N 2 TsOH

N

H Ci Ethyl acetate (30 ml) was added to a mixture of the compound from preparation 11b 14.6mmol) and p-toluenesulfonic acid monohydrate (8.4g, 44.2mmol) and the reaction was stirred at room temperature for 17 hours. The solid precipitate was collected by filtration, washing with ethyl acetate (20 ml) to give the title compound as a white solid, (9.32g).

1H NMR (400MHz, DMSO-de): 8 1.85 4H), 2.26 6H), 2.83 3H), 3.24 2H), 5.68 2H), 7.10 4H), 7.32 2H), 7.47 4H), 7.54 2H), 7.65 2H), 8.29 (m, 1H), 8.49 1H).

LRMS: m/z (APCI') 344 [MH] Preparation 13: Methyl 1H-tetrazol-1-ylacetate 0 NrN HaCI O N N A mixture of tetrazol-1-yl acetic acid (5 g, 39 mmol) and 4M hydrochloric acid in dioxan (100 in methanol (50 mL) was heated under reflux for 18 hours. The cooled mixture was evaporated under reduced pressure to provide the title compound.

1H NMR (400MHz, DMSO-d 6 5 3.74 3H), 5.58 2H), 9.39 1H); LCMS: m/z APCI' 143 [MH]' WO 2005/063754 PCT/IB2004/004059 -54- Preparation 14: (3-Methyl-isoxazol-5-yl)-acetoyl chloride 0 o-N Ci

CH,

N,N-Dimethylformamide (few drops), followed by oxalyl chloride (9.5 mL, 106 mmol) were added dropwise to a cooled (10°C) solution of (3-methyl-isoxazol-5-yl)-acetic acid (5 g, 35.4 mmol) in dichloromethane (50 mL), and the solution was allowed to warm to room temperature. The reaction was stirred for a further 3 hours, then concentrated under reduced pressure. The residue was azeotroped with toluene to afford the title compound.

'H NMR (400MHz, CDCI 3 8 2.30 3H), 4.32 2H), 6.18 1H).

Preparation 15: Ethyl (2-methyl-1 H-imidazol-1-yl)acetate

H

3

C

CH

3 0 N Potassium carbonate (8.42 g, 61 mmol) was added to a solution of 2-methylimidazole g, 61 mmol) in tetrahydrofuran (100 mL) and the suspension was stirred for 30 minutes.

Ethyl bromoacetate (6.75 mL, 61 mmol) was added and the reaction was stirred for a further 30 minutes at room temperature. The mixture was filtered, washing through with dichloromethane:methanol (90:10). The filtrate was evaporated under reduced pressure and the crude product was purified by column chromatography on silica gel using dichloromethane:methanol:0.88 ammonia (93:7:0.5) as eluant to afford the title compound as an oil, 5.28 g.

H NMR (400MHz, CDC1 3 8 1.26 3H), 2.35 3H), 4.22 2H), 4.58 2H), 6.81 (s, 1H), 6.94 1H). LCMS: m/z APCI" 169 [MH] Preparation 16: 2-(1H-Tetrazol-1-yl)acetohydrazide

N=N

H

2 N II

H

Hydrazine hydrate (3.2 g, 63 mmol) was added to a solution of the ester of preparation 13 (3 g, 21.1 mmol) in methanol (18 mL) and the mixture was heated under reflux for 18 hours. The cooled reaction was concentrated under reduced pressure and the residue was azeotroped with toluene to afford the title compound.

'H NMR (400MHz, DMSO-d 6 8 5.18 2H), 9.38 1H). LCMS: m/zAPCI' 143 [MH] WO 2005/063754 PCT/IB2004/004059 Preparation 17: [1,2,3]Triazol-1-yl-acetic acid ethyl ester and [1,2,3]triazol-2-yl-acetic acid ethyl ester EtO N EtO N 1,2,3-Triazole (19.00 kg, 275 mol) was charged over 30 minutes to a suspension of potassium carbonate (42.15 kg, 305 mol) in ethanol (80 and was rinsed in with ethanol (2 A solution of ethyl bromoacetate (45.8 kg, 274 mol) in ethanol (30 L) was added slowly and was rinsed in with ethanol During this time the reaction temperature was maintained at <20 0 C. The reaction mixture was then warmed to room temperature and stirred overnight. The suspension was filtered; washing the residue with ethanol (25 L and 17 L) and then the filtrate was concentrated under reduced pressure. The concentrate was dissolved in ethyl acetate (120 L) and the solution was washed with 1N hydrochloric acid (1 x 40 L, 7 x 20 L, 4 x 15 The aqueous washings were combined and extracted with ethyl acetate (3 x 21 The organic phases were combined, dried over magnesium sulphate, filtered and concentrated to dryness giving a mixture of the title compounds (25 kg). 1H NMR spectroscopic analysis indicated that this was a 6:5 mixture of N-2/N-1 isomers.

'H NMR (400MHz, CDCI 3 8 1.25 3H), 4.13 2H, N-1 isomer), 4.25 2H, N-2 isomer), 5.20 2H, N-1 isomer), 5.22 2H, N-2 isomer), 7.70 2H, N-2 isomer), 7.77 2H, N-1 isomer).

Preparation 18: [1,2,3]Triazol-2-yl-acetic acid hydrazide O N H N Hydrazine hydrate (8.65 kg, 270 mol) was added to a cooled solution of the mixture of esters of preparation 17 (19 kg) in ethanol (69 L) keeping the temperature below 20"C throughout the addition. The reaction mixture was stirred at between 14 and 19°C for 3 hours, then more ethanol (25 L) was added and the product was collected by filtration, washing with ethanol (10 The crude solid was purified by recrystallisation from ethanol (120 followed by three recrystallisations from methanol (105 L, 120 L and 90 L) to give the title compound, (4.53 kg) after drying in vacuo.

'H NMR (400MHz, DMSO-d 6 5 4.33 2H), 5.02 2H), 7.77 2H), 9.40 1H).

WO 2005/063754 PCT/IB2004/004059 -56- Preparation 19: 2-(2-Methyl-1H-imidazol-1-yl)acetohydrazide H C N N

H

The title compound was obtained as a white solid from the compound of preparation and hydrazine following a similar procedure to that described for preparation 16, except that 5 equivalents of hydrazine were used, and isopropanol was used as the reaction solvent.

'H NMR (400MHz, CD 3 OD): 8 2.35 3H), 4.60 2H), 6.81 1H), 6.99 1H).

LCMS: m/z APCI* 155 [MH] 4 Preparation 20: 2-(3-Methyl-1,2,4-oxadiazol-5-yl)acetohydrazide N

O-N

H N The title compound was obtained from 3-methyl 1,2,4-oxadiazol-5-yl-acetic acid methyl ester (NL 7807076) and hydrazine following a similar procedure to that described for preparation 16, except that 8 equivalents of hydrazine were used, and isopropanol was used as the reaction solvent.

1 H NMR (400MHz, CDCI 3 8 2.42 3H), 3.86 2H), 6.89 (brs, 1H), 8.18 (brs, 1H).

Preparation 21: 2-(Pyrimidin-2-yloxy)acetohydrazide H,N

N

A mixture of ethyl 2-pyrimidinyloxyacetate (GB2373186, step i ex 368) (4.4 g, 24.15 mmol) and hydrazine hydrate (5 mL, 160 mmol) in isopropanol (30 mL) was heated under reflux for 1 hour. The mixture was then cooled and concentrated under reduced pressure and the residue was purified by column chromatography on silica gel using dichloromethane:methanol:0.88 ammonia (100:0:0 to 100:10:1) to provide the title compound, 600 mg.

'H NMR (400MHz, CDCI 3 6 4.98 3H), 7.04 1H), 8.58 2H); LCMS: m/z APCI' 169 [MH] WO 2005/063754 PCT/IB2004/004059 -57- Preparation 22: tert-Butyl 2-[(3-methylisoxazol-5-yl)acetyl]hydrazinecarboxylate HIC CH,H 0CH oN N

H

0 Triethylamine (24 mL, 17 mmol) was added slowly to a cooled (10°C) solution of the acid chloride of preparation 14 (5.64 g, 35.4 mmol) in dichloromethane (200 mL), followed by tert-butyl carbazate (5.6 g, 42.5 mmol) and the reaction was stirred at room temperature for 18 hours. The reaction was diluted with ethyl acetate and the precipitate was filtered off. The filtrate was concentrated under reduced pressure and the residue was purified by column chromatography on silica gel using an elution gradient of ethyl acetate:pentane (50:50 to 100:0) to provide the title compound.

'H NMR (400MHz, CDCIl): 8 1.47 9H), 2.30 3H), 3.77 2H), 6.15 1H), 6.45 (br s, 1H), 7.59 (br s, 1H).

Preparation 23: tert-Butyl 2-[3-(3,5-dimethylisoxazol-4-yl)propanoyl] hydrazinecarboxylate H 3HH

N

0 CH H 0N H (o o HC Oxalyl chloride (5.16 mL, 59.2 mmol) was added to a solution of P-(3,5-dimethyl-4isoxazolyl)propionic acid Org. Chem. 59(10); 1994; 2882) (2.5 g, 14.8 mmol) in dichloromethane (50 mL) and N,N-dimethylformamide (1 drop), and the solution was stirred at room temperature for 30 minutes. The mixture was concentrated under reduced pressure and the residue was azeotroped with dichloromethane (5x) to provide a brown liquid. This was dissolved in dichloromethane (25 mL), and tert-butyl carbazate (2.93 g, 22.2 mmol) was added portionwise. The mixture was diluted with further dichloromethane (23 mL) and the reaction was stirred for 18 hours at room temperature.

The mixture was concentrated under reduced pressure, the residue was suspended in dichloromethane, the resulting precipitate was filtered off and the filtrate was evaporated under reduced pressure. The residue was purified by column chromatography on silica gel using an elution gradient of dichloromethane:methanol:0.88 ammonia (95:5:0.5 to 90:10:1) to provide the title compound as an oil, 3.08 g.

'H NMR (400MHz, CDC13): 8 1.45 9H), 2.21 3H), 2.36 4H), 2.45 1H), 2.60- 2.73 2H), 6.48 (br s, 1H), 7.42 (br s, 1H). LCMS: m/z ES 306 [MNa] WO 2005/063754 PCT/IB2004/004059 -58- Preparation 24: 2-(3-Methylisoxazol-5-yl)acetohydrazide hydrochloride 0

O-N

H

2 N

CH

.HCI H 3 A mixture of the compound of preparation 22 (1.6 g, 6.3 mmol) in 4M hydrochloric acid in dioxan (20 mL) and methanol (60 mL) was stirred at room temperature for 3 hours.

The solution was concentrated under reduced pressure to low volume, the resulting precipitate was filtered off, washed with dichloromethane and dried to afford the title compound, 810 mg.

'H NMR (400MHz, DMSO-dG): 6 2.20 3H), 3.86 2H), 6.24 1H).

LCMS: m/zAPCI 156 [MH] Preparation 25: 3-(3,5-Dimethylisoxazol-4-yl)propanohydrazide hydrochloride O H 3

H

2 N N .HCI H

H

a

C

A solution of the compound of preparation 23 (3.08 g, 10.87 mmol) in 2.2M methanolic hydrochloric acid (50 mL) was stirred at room temperature for 18 hours. The solution was concentrated under reduced pressure and the residue was azeotroped with toluene.

The crude product was triturated with pentane/ether and then ether, and the resulting solid was filtered off to provide the title compound as an off-white solid, 1.39 g.

1 H NMR (400MHz, DMSO-do): 6 2.22 3H), 2.27 2H), 3.35 3H), 2.66 2H), 6.75 (br s, 1H). LCMS: m/zAPCl' 184 [MH]' Preparation 26: tert-Butyl 2-(hydrazinocarbonyl)morpholine-4-carboxylate nc o 0 H3 c t N 0

H,N-N

H

A mixture of 4-(tert-butyl) 2-methyl 2,4-morpholinecarboxylate (WO 03/018576, ex 1 part i (2.03 g, 8.3 mmol), hydrazine hydrate (1.2 mL, 24 mmol) and methanol (50 mL) was heated under reflux for 4 days. The cooled mixture was evaporated under reduced pressure, the residue was partitioned between water and ethyl acetate, and the layers were separated. The organic phase was dried over MgSO 4 and evaporated under reduced pressure to provide the title compound, 1.92 g.

LCMS: m/z ES' 268 [MNa]' WO 2005/063754 PCT/RIB200n4/0040n59 -59- Preparation 27: tert-Butyl 3-(hydrazinocarbonyl)piperidine-1-carboxylate

H

3 C O N

H

3 C 0O

H

3 C =0

H

2

N-N

H

Hydrazine hydrate (75 mL, 1.5 mol) was added to a solution of piperidine-1-3dicarboxylic acid 1 tert-butyl 3-ethyl ester (US 2002 0099035, ex 12) (72 g, 280 mmol) in ethanol (250 mL) and the reaction was heated under reflux for 18 hours. The cooled mixture was concentrated under reduced pressure and the residue was partitioned between dichloromethane and water, and the layers were then separated. The aqueous phase was extracted with dichloromethane, and the combined organic solutions were dried over MgSO 4 and evaporated under reduced pressure. The product was azeotroped with ether to afford the title compound as a colourless gum, 59.8 g.

1 H NMR (400MHz, CDCIs): 8 1.40-1.50 11H), 1.63 1H), 1.83 2H), 2.25 (m, 1H), 2.97 1H), 3.16 1H), 3.78-3.98 3H), 7.40-7.60 (brs, 1H).

Preparation 28: Ethyl 1-(4-chlorobenzoyl)piperidine-4-carboxylate cil

O

0 The title compound was obtained as a yellow oil from ethyl isonipecotate and 4chlorobenzoyl chloride, following a similar procedure to that described for preparation 3.

1 H NMR (400MHz, CDC13): 5 1.24 3H), 1.62-2.06 4H), 2.59 1H), 3.03 2H), 3.72 1H), 4.17 2H), 4.54 1H), 7.36 2H), 7.39 2H). LCMS: m/z APCIl 296 [MH]' Preparation 29: 1-(4-Chlorobenzoyl)piperidine-4-carbohydrazide cl 0 IN., N.NH2 NN H 0 A solution of the compound of preparation 28 (148 g, 0.5 mol) in methanol (400 mL) was heated at 700C for 30 minutes. Hydrazine hydrate (50 g, 1.0 mol) was then added and the reaction was stirred at 60 0 C for a further 3 hours. Tic analysis showed that starting material remained, so additional hydrazine hydrate (50 mL, 1.0 mol) was added WO 2005/063754 PCT/IB2004/004059 and the reaction was stirred for a further 48 hours at 75 0 C. The cooled mixture was concentrated under reduced pressure, the residue was suspended in dichloromethane (1 L) and washed with water The organic solution was dried over MgSO 4 and evaporated under reduced pressure to afford the title compound as a white solid, 119 g.

1 H NMR (400MHz, CDCI 3 5 1.65-1.94 4H), 2.35 1H), 2.80-3.06 2H), 3.79 1H), 4.65 1H), 7.10 1H), 7.38 4H). LCMS: m/zAPCI' 282 [MH]+ Preparation 30: 1-(4-Chlorobenzoyl)-N'-(trifluoroacetyl)piperidine-4-carbohydrazide H F 0 Trifluoroacetic anhydride (1.56 mL, 11.18 mmol) was added dropwise to an ice-cooled solution of the compound of preparation 29 (3.0 g, 10.65 mmol) and Nmethylmorpholine (1.29 mL, 11.7 mmol) in dichloromethane (50 mL), and the reaction was stirred at room temperature for 18 hours. The resulting precipitate was filtered off, washed with dichloromethane and dried to afford the title compound, 1.78 g.

1 H NMR (400MHz, DMSO-d 6 5 1.56 2H), 1.64-1.84 2H), 2.56 1H), 2.85 (m, 1H), 3.08 1H), 3.58 1H), 4.40 1H), 7.40 2H), 7.50 2H), 10.20 1H), 11.15 (brs, 1H).

Preparation 31: 1-(4-Chlorobenzoyl)-N'-(ethoxyacetyl)piperidine-4-carbohydrazide N o cH 3 o N-Methylmorpholine (2.60 g, 26.6 mmol), and then ethoxyacetyl chloride (WO 01/46150 ex 33A) (1.09 g, 8.87 mmol) were added to a solution of the compound of preparation 29 (2.5 g, 8.87 mmol) in dichloromethane (70 mL), and the reaction was stirred at room temperature for 18 hours. The mixture was washed with water, then ammonium chloride solution and finally sodium carbonate solution. It was dried over MgSO 4 and evaporated under reduced pressure to afford the title compound.

'H NMR (400MHz, CDCI 3 8 1.22 3H), 1.72-1.99 4H), 2.56 1H), 2.86-3.06 (m, 2H), 3.60 2H), 3.80 1H), 4.04 2H), 4.62 1H), 7.38 4H), 8.90 1H), 8.99 1H). LCMS: m/z ES' 368, 370 [MH]' WO 2005/063754 PCT/IB2004/004059 -61- Preparation 32: 1-(3-Chlorobenzoyl)-A'-(ethoxyacetyl)piperidine-4-carbohydrazide c o H cN O

CH,

0 0 The title compound was obtained in 91% yield from the compound of preparation 4 and ethoxyacetyl chloride (WO 01/46150 ex 33A) following the procedure described for preparation 31.

1 H NMR (400MHz, CDCIl): 8 1.22 3H), 1.72-2.00 4H), 2.56 1H), 2.84-3.10 (m, 2H), 3.60 2H), 3.79 1H), 4.04 2H), 4.62 1H), 7.26 1H), 7.38 3H), 8.61 1H), 8.75 1H). LCMS: m/zAPCI 368, 370 [MH]' Preparation 33: tert-Butyl 4-{[(4-chlorophenyl)amino]carbonyl}piperidine-l-carboxylate

H

3 C 0 1-BOC-piperidine-4-carboxylic acid (100 g, 437 mmol), 4-chloroaniline (61.2 g, 480 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (100 g, 524 mmol) and triethylamine (182.6 mL, 1.31 mol) were dissolved in cold (10 0 C) acetonitrile (1.75 The reaction mixture was stirred for 54 hours at room temperature and then concentrated under reduced pressure. The residue was dissolved in ethyl acetate and then partitioned with 2N hydrochloric acid. The resulting precipitate was filtered off, redissolved in dichloromethane, the solution was dried over MgSO 4 and evaporated under reduced pressure. The residue was triturated with ether to afford the desired compound as a white solid.

The filtrate was separated and the organic layer was washed with 2N hydrochloric acid dried over MgSO 4 and evaporated under reduced pressure. The solid was triturated with ether to afford further compound as a white solid, combined yield 99.4 g.

1 H NMR (400MHz, CDCl3): 5 1.46 9H), 1.68-1.80 2H), 1.90 2H), 2.39 1H), 2.79 2H), 4.19 2H), 7.10 1H), 7.26 2H), 7.46 2H). LCMS: m/zAPCI' 339 [MH]' WO 2005/063754 PCT/IB2004/004059 -62- Preparation 34: tert-Butyl 4-{[(4-chlorophenyl)amino]carbonothioyl}piperidine-1carboxylate H3C A solution of the compound of preparation 33 (99.4 g, 294 mmoL) and Lawesson's reagent (30 g, 74.3 mmol) in toluene (1 L) was heated under reflux for 1 hour, then stirred at room temperature for a further 18 hours. Tic analysis showed that starting material remained, so additional Lawesson's reagent (11.1 mmol) was added and the reaction was heated under reflux for a further hour. The cooled mixture was concentrated under reduced pressure and the residue was azeotroped with ethyl acetate. The crude product was triturated with hot ethyl acetate, the resulting solid was filtered off and dried to afford the title compound as a white solid, 53 g.

LCMS: m/z APCI 353 Preparation 35: Ethyl 1-{[(4-chlorophenyl)amino]carbonothioyl}piperidine-4-carboxylate 0

H

A mixture of 4-chlorophenyl isothiocyanate (3.5 g, 20.7 mmol), and ethyl isonipecotate (3.19 mL, 20.7 mmol) in dichloromethane (30 mL) was stirred at room temperature for 1 hour. The mixture was concentrated under reduced pressure, the residue was triturated with ether and the resulting solid was filtered off and dried to afford the title compound as a white solid, 6.27 g.

1 H NMR (400MHz, CDCIs): 8 1.24 3H), 1.82 2H), 1.99 2H), 2.60 1H), 3.34 2H), 4.19 2H), 4.38 2H), 7.09 2H), 7.17 (br s, 1H), 7.30 2H).

LCMS: m/zAPCl' 327 [MH]' Preparation 36: N-(4-Chlorophenyl)-3-methylpiperazine-1-carbothioamide HN N- H3C H A solution of 4-chlorophenyl isothiocyanate (8.0 g, 47.17 mmol) in dichloromethane (250 mL) was added dropwise over 30 minutes to an ice cooled solution of 2methylpiperazine (9.45 g, 94.33 mmol) in dichloromethane (250 mL). Once the addition was complete, the reaction was stirred at room temperature for an hour. The reaction WO 2005/063754 PCT/IB2004/004059 -63was then washed with water dried over MgSO 4 and concentrated under reduced pressure, to give the title compound as a white solid, 11.8 g.

1 H NMR (400MHz, CDCI 3 8 1.08 3H), 2.70 1H), 2.88 2H), 3.02 2H), 4.43 2H), 7.10 2H), 7.29 2H). LCMS: m/zES' 270.1 [MH] Preparation 37: N-(4-Chlorophenyl)-4-(2,2-dimethylpropanoyl)-3-methylpiperazine-1carbothioamide

H

3 C S N CI 0

H

H C Di-tert-butyl dicarbonate (9.30 g, 42.6 mmol) was added to a solution of the compound of preparation 36 (11.5 g, 42.6 mmol) in dichloromethane (300 mL) and dioxan (100 mL) and the reaction was stirred at room temperature for 3 hours. The mixture was concentrated under reduced pressure and the product was recrystallised from methanol.

The resulting solid was filtered off, and the filtrate was evaporated under reduced pressure. The residue was recrystallised again from methanol to afford the title compound, 9.64 g.

1 H NMR (400MHz, DMSO-de): 8 1.05 3H), 1.39 9H), 3.17-3.36 2H), 3.58 (m, 1H), 3.77 1H), 4.14 1H), 4.40 2H), 7.32 4H), 9.36 1H). LCMS: m/z APCI' 370 [MH] 4 Preparation 38: N-(4-Chlorophenyl)-4-(2,2-dimethylpropanoyl)-2-methylpiperazine-1carbothioamide

H

3 C O ,S 0

CH,

A solution of 4-chlorophenylisothiocyanate (5.1 g, 30 mmol) and 4-N-BOC-2methylpiperazine (6.0 g, 30 mmol) in dichloromethane (250 mL) was stirred at room temperature for 2 hours. The reaction mixture was evaporated under reduced pressure to afford the title compound as a white foam.

LCMS: m/zAPCI 370 [MH]' WO 2005/063754 PCT/IB2004/004059 -64- Preparation 39: Ethyl 1-{[(4-chlorophenyl)amino]carbonothioyl}-4-methylpiperidine-4carboxylate

H

3 CD N1-4 A mixture of 4-chlorophenyl isothiocyanate (2.36 g, 13.98 mmol), and ethyl 4methylpiperidine-4-carboxylate (US 2002/0086887, example 532C) (2.17 g, 12.71 mmol) in dichloromethane (50 mL) was stirred at room temperature for 30 minutes. The mixture was partitioned between dichloromethane and brine, and the layers were separated. The organic phase was dried over MgSO 4 and evaporated under reduced pressure. The crude product was purified by column chromatography on silica gel using dichloromethane:ethyl acetate (100:0 to 90:10) to provide the title compound as a white solid, 3.46 g.

'H NMR (400MHz, CDCI 3 5 1.22 6H), 1.58 2H), 2.18 4H), 3.30 2H), 4.19 2H), 4.24 1H), 7.09 2H), 7.28 2H); LCMS: m/zAPCI' 341 [MH]' Preparation 40: N-(4-Chlorophenyl)-4-cyano-4-phenylpiperidine-1-carbothioamide NC S Triethylamine (1.4 mL, 10 mmol) was added to a suspension of 4-chlorophenyl isothiocyanate (1.69 g, 10 mmol) and 4-cyano-4-phenylpiperidine hydrochloride (2.22 g, mmol) in dichloromethane (100 mL), and the reaction was then stirred at room temperature for 20 minutes. The mixture was washed with 2N hydrochloric acid, then brine, it was dried over MgSO 4 and evaporated under reduced pressure to afford the title compound as a white solid, 3.62 g.

'H NMR (400MHz, CDC13): 8 2.18 4H), 3.50 2H), 4.78 2H), 7.08 2H), 7.27-7.48 7H).

Preparations 41 to 44: s R N -I A mixture of 4-chlorophenyl isothiocyanate (1 eq.) and the appropriate amine (1 eq.) in ethanol (0.8-1.28 mLmmol-') was stirred at room temperature for 30 minutes. The reaction mixture was then evaporated under reduced pressure to afford the title compounds as a white solid.

WO 2005/063754 WO 205/03754PCTIIB2004/004059 Prep. K Dat NoQ 41 CH 1H NMVR (400MHz, CDCI 3 8 1.45 9H), 3.50

H

3 0 (in, 4H), 3.80 (in, 4H), 7.10 2H), 7.25 (d, H3C 0 2H), 7.80 1IH). LCMS: m/z APCI 4 356 [MH]+ 42 H3\ 1 H NMVR (400MHz, CDCI 3 5 2.10 3H), 3.60 j N(in, 2H), 3.78 (in, 4H), 4.02 (in, 2H), 7.14 (d, 0 2H), 7.30 2H). LCMS: m/z APCI 298 [MHI t 43 0 1 H NMVR (400MHz, CDC 3 3 2.04-2.24 (in, 4H),

H

3 C' N 2.85 (in, 1 2.94 3H), 3.62 (in, 2H), 3.95

CH

3 5.25 (in, 1 6.60 1 7.30 (s, 4H). LCMS: m~z APCI+ 312 [MH]" 44 0 H NMR (400MHz, CDC 3 5 1.29-1.54 (in, HC-O -H 11 2.01 (in, 2H), 3.20 (in, 2H), 3.74 (br s,

H

3 C 1 4.35-4.55 (in, 3H), 7.09 2H), 7.17 (br s, 1 7.32 2H).

Preparation 45: tert-Butyl 4-fl(4-chlorophenyl)amino]carbonothioyl}- 1,4-diazepane-1 carboxylate HC 0Sc

CI

A mixture of 4-chiorophenyl isothiocyanate (5.0 g, 29.95 inmol), and BOGhomopiperazine (6.0 g, 29.95 minol) in ethanol (50 mL) was stirred at room temperature for 2 hours. The mixture was evaporated under reduced pressure, the residue was partitioned between ethyl acetate and water and the layers were separated. The organic phase was dried over MgSO 4 and evaporated under reduced pressure to give the title compound as a white foam.

'H NMR (400MHz, CD 3 OD): 8 1.45 9H), 1.98 (in, 2H), 3.43 (in, 2H), 3.64 (mn, 2H), 3.94-4.10 (in, 4H), 7.28 4H). LOMS: m/z APCI+ 370 [MH]+ WO 2005/063754 PCT/IB2004/004059 -66- Preparation 46: tert-Butyl 4-[(Z)-[(4-chlorophenyl)imino](methylthio)methyl]piperidine-1carboxylate M 0 NS--Ci C

H

3 C N NS CI

HC

Potassium tert-butoxide (20.1 g; 0.18 mol) was added portionwise to a cooled solution of the compound of preparation 34 (53 g, 0.15 mol) in tetrahydrofuran (1 in order to maintain the temperature at 10"C. Methyl iodide (11.2 mL, 0.18 mol) was added dropwise, in order to maintain the temperature at 10°C, and the reaction was then allowed to warm slowly to room temperature. The reaction was stirred for a further minutes, then it was quenched by the addition of water. The reaction was diluted with ethyl acetate and washed with water. The phases were separated, the aqueous layer was extracted with further ethyl acetate, and the combined organic solutions were dried over MgSO 4 and evaporated under reduced pressure. The residual oil was adsorbed onto silica gel and purified by column chromatography on silica gel using pentane:ethyl acetate (75:25) as eluant to afford the title compound as an oil that crystallised upon standing.

1H NMR (400MHz, CDCs1): 51.43 9H), 1.57-1.82 5H), 2.35 3H), 2.42-2.62 (m, 1H), 2.78 1H), 4.16 2H), 6.65 2H), 7.26 2H). LCMS: m/z ES' 391 [MNa]' Preparation 47: Ethyl 1-[(Z)-[(4-chlorophenyl)imino](methylthio)methyl]piperidine-4carboxylate °0 a

S

CH3 H C N Cl Potassium tert-butoxide (2.58 g, 23.1 mmol) was added portionwise to a solution of the compound of preparation 35 (6.27 g, 19.2 mmol) in tetrahydrofuran (100 mL) and the reaction was stirred for 10 minutes. Methyl iodide (1.44 mL, 23.1 mmol) was added and the reaction was stirred at room temperature for a further 30 minutes. The reaction was diluted with ether, and washed with brine. The organic solution was evaporated under reduced pressure and the resulting orange solid was purified by column chromatography on silica gel using dichloromethane as eluant to afford the title compound as an oil, 3.6 g.

'H NMR (400MHz, CDCI 3 8 1.25 3H), 1.78 2H), 1.98 2H), 2.04 3H), 2.56 1H), 3.01 2H), 4.12-4.23 4H), 6.80 2H), 7.20 2H); LCMS: m/z ES' 341 [MH]* WO 2005/063754 PCT/IB2004/004059 -67- Preparation 48: Ethyl 1-[(Z)-[(4-chlorophenyl)imino](methylthio)methyl]-4methylpiperidine-4-carboxylate 0 S-CH 3 H HC N Cl The title compound was obtained as an oil in 75% yield from the compound of preparation 39 and methyl iodide, following a similar procedure to that described for preparation 47, except that the product was not purified by column chromatography on silica gel.

'H NMR (400MHz, CDC13): 5 1.25 6H), 1.50 2H), 2.04 3H), 2.18 2H), 3.19 2H), 3.98 2H), 4.19 2H), 6.80 2H), 7.20 2H); LCMS: m/z ES 355

[MH]'

Preparations 49 to RX /S-CH 3 Potassium tert-butoxide (1.1 followed by methyl p-toluenesulphonate (1.1 eq.) was added to a solution of a compound selected from preparations 37, 38, 40-42 and 45 (1 eq.) in tetrahydrofuran and the reaction was stirred at room temperature for 2 hours.

The mixture was concentrated under reduced pressure and the residue was partitioned between ethyl acetate and water, the layers were separated and the organic solution was washed with water dried over MgSO 4 and evaporated under reduced pressure to give the title compounds.

Prep. Data No R-Q 49 CH 3 'H NMR (400MHz, CDCI 3 8 1.20 3H), 1.44 (s, H3H7 O r 9H), 2.00 3H), 2.99 1H), 3.19 2H), 3.88

H

3 C 1H), 4.16 1H), 4.20-4.36 2H), 6.83 (m, 2H), 7.21 2H). LCMS: m/z APCI' 384 [MH]'

CH

3 f N 'H NMR (400MHz, CDCI 3 8 1.21 3H), 1.42 (s, H3 C yrN\ CH 9H), 2.00 3H), 2.80-3.30 3H), 3.80-4.18 (m, S3H), 4.54 1 6.80 2H), 7.20 2H).

LCMS: m/z APCI+ 384 [MH] WO 2005/063754 WO 205/03754PCTIIB2004/004059 51 Ph 'H NMVR (400MHz, 00013): 5 2.06 3H), 2.17 (in, h~r2H), 3.38-3.52 (in, 4H), 4.50 (mn, 2H), 6.83 2H), N- 7.22 2H), 7.38 (in, 1 7.42 (in, 2H), 7.52 (d, 2H).

52 CH 3 'H NMR (400MHz, CD13): 8 1.46 9H), 2.02 (s,

H

3 C- O- H,34 m H,35 m H,68 d H,72

H

3 C 3H034 i,4) .8(n H,68 d H,72 53 'H NMVR (400MHz, CDCl 3 8 2.01 3H), 2.10 (s, 3 y-N3H), 3.48-3.76 (in, 8H), 6.80 2H), 7.19 2H).

0 ~LOMS: m/z APCI+ 312 [MH]+ 54 H C 'H NMVR (400MHz, 00013): 6 1.98 3H), 2.09 (S' Hac- N 3H), 2.84 (in, I1H), 2.90 3H), 3.38 (in, 1 3.46 0 (in, 1 3.77 (in, 2H), 5.22 (in, 1IH), 6.82 2H), 7.19 2H). LCMVIS: m/z APCI 4 326 [MH]+

H

3 1 H NMVR (400MHz, CD, 3 00): 5 1.45 (2xs, 9H), 1.90 (in, 5H-1), 3.44 (in, 2H), 3.60 (in, 2H), 3.76 (in, 2H),

H

3 C 0 3.80 (in, 2H), 6.85 7.20 2H).

Athe reaction was stirred at room temperature for 18 hours, and the product was additionally purified by column chromatography on silica gel using dichloromethane:methanol as eluant.

Preparation 56: Methyl 4-[(tert-butoxycarbonyl)amino]-N-(4-chlorophenyl)piperidine- 1carbimidothioate

H

3 C Ho S-J CH 3

H

3 C- N C H G Potassium tert-butoxide (12.8 g, 114 mmol) was added to a suspension of the compound of preparation 44 (42.3 g, 114 mrnol) in tetrahydrofuran (400 mL) and the suspension was stirred for 10 minutes at room temperature. Methyl p-toluenesulphonate (21 .29 g, 114 iniol) was added and the reaction was stirred for 10 minutes. Additional potassium tert-butoxide (641 mg, 5.7 minol) and methyl p-tol ue nesulIphonate (1.08 g, 5.7 inmol) were added and the reaction was stirred for a further 10 minutes. The mixture was diluted with ether, washed with water (200 mL) and brine, then dried over MgSO 4 and evaporated under reduced pressure to afford the title compound.

WO 2005/063754 PCT/IB2004/004059 -69- 1 H NMR (400MHz, CDCI 3 8 1.34-1.52 11H), 2.00 2H), 2.05 3H), 3.04 (m, 2H), 3.68 (br s, 1H), 4.19 2H), 4.50 (br s, 1H), 6.80 2H), 7.20 2H). LCMS: m/z ES' 384 [MH]' Preparation 57: tert-Butyl 4-[5-(methoxymethyl)-1,3,4-oxadiazol-2-yl]piperidine-1carboxylate

N

N

H,C 0

H

3 C 0V 3 0 CH 3 Potassium tert-butoxide (3.40 g, 30.3 mmol) was added to a solution of the compound of preparation 8 (7.62 g, 25.25 mmol) in methanol (120 mL) and the reaction was stirred at room temperature for 18 hours. Tic analysis showed that starting material remained, so additional potassium tert-butoxide (1 g, 8.9 mmol) was added and the reaction was stirred at 500C for 2 hours. The mixture was concentrated under reduced pressure and the residue was partitioned between ethyl acetate and ammonium chloride solution. The layers were separated, the organic phase was dried over MgS04 and evaporated under reduced pressure to afford the title compound as a yellow oil, 7.30 g.

1 H NMR (400MHz, CDCI 3 8 1.45 9H), 1.82 2H), 2.08 2H), 2.96 2H), 3.08 1H), 3.44 3H), 4.10 2H), 4.61 2H). LCMS: m/z APCl' 298 [MH]' Preparation 58: tert-Butyl 4-{5-[(2,2,2-trifluoroethoxy)methyl]-1,3,4-oxadiazol-2yl}piperidine-1-carboxylate

H

3 C 0 H3C o o F Potassium tert-butoxide (1.8 g, 41.8 mmol) was added to a solution of 2,2,2trifluoroethanol (4.64 g, 46.4 mmol) in tetrahydrofuran (100 mL) and the solution was stirred at room temperature for 10 minutes. The compound of preparation 8 (7.0 g, 23.2 mmol) was added and the mixture was then heated at 50°C for 2 hours. The reaction was quenched by the addition of ammonium chloride solution, then the organic layer was decanted off and evaporated under reduced pressure. The residue was redissolved in ethyl acetate, the solution was washed with brine, dried over MgS0 4 and then evaporated under reduced pressure to afford the title compound as a yellow oil, 8.15 g.

1 H NMR (400MHz, CDCI 3 5 1.43 9H), 1.80 2H), 2.06 2H), 2.97 2H), 3.10 1H), 3.96 2H), 4.12 2H), 4.82 2H).

WO 2005/063754 PCT/IB2004/004059 Preparation 59: tert-Butyl 4-[5-(hydroxymethyl)-1,3,4-oxadiazol-2-yl]piperidine-1carboxylate HC

N-

H3 C- o O OH Potassium acetate (5.2 g, 53.0 mmol) was added to a solution of the compound of preparation 8 (8 g, 26.5 mmol) in acetonitrile (150 mL), and the reaction was heated at 0 C for 18 hours. The cooled mixture was concentrated under reduced pressure and the residue was partitioned between water and ethyl acetate, and the layers were separated. The organic phase was washed with brine, dried over MgSO 4 and evaporated under reduced pressure. The residual oil was dissolved in methanol (120 mL), and sodium carbonate (5.6 g, 53.0 mmol) and water (1 mL) were added. The mixture was stirred at room temperature for 2 hours and then it was evaporated under reduced pressure. The residue was partitioned between ethyl acetate and water. The organic layer was washed with brine, dried over MgSO 4 and evaporated under reduced pressure to afford the title compound as an off-white solid, 7.16 g.

1 H NMR (400MHz, CDCl1): 8 1.45 9H), 1.81 2H), 2.04 2H), 2.17 1H), 2.97 2H), 3.08 1H), 4.11 2H), 4.82 2H). LCMS: m/z ES 4 306 [MNa]' Preparation 60: tert-Butyl 4-[5-(morpholin-4-ylmethyl)-1,3,4-oxadiazol-2-yl]piperidine-1carboxylate 2HC

N'-N

0 A mixture of the compound of preparation 8 (10 g, 33.1 mmol), morpholine (4.3 mL, 49.7 mmol) and potassium carbonate (9.2 g, 66.2 mmol) in acetonitrile (300 mL) was stirred at 80 0 C for 4 hours. The cooled mixture was concentrated under reduced pressure and the residue was partitioned between water and ethyl acetate. The organic phase was dried over MgSO 4 and evaporated under reduced pressure to provide the title compound as an orange oil, 12.06 g.

'H NMR (400MHz, CD 3 OD): 8 1.45 9H), 1.65-1.78 2H), 2.04 2H), 2.58 (m, 4H), 3.00 2H), 3.10 1 3.68 2H), 3.81 2H), 4.06 2H). LCMS: m/z ES 353 [MH]' WO 2005/063754 PCTfIB2004/004059 -71- Preparation 61: tert-Butyl 4-{[2-(ethoxyacetyl)hyd razi no] carbonyl~pipe rid ine-i ca rboxyl ate 0 HC

H

HC c H CH, 0 0 A mixture of 4-hydrazinocarbony-piperidine-1-carboxylic acid tert-butyl ester (WO 2000039125, prep 27) (3 g, 12.33 mmol), ethoxyacetic acid (1.28 mL, 13.56 mmol), 1-(3d imethyla mi nop ropyl)-3-ethylca rbod i imid e hydrochloride (2.6 g, 13.56 mmol), 1hydroxybenzotriazole hydrate (1.839g,13.56 mmol) and triethylamine (2.1 mL, 14.8 mmoi) in N,N-dimethyiformamide (15 mL) was stirred at room temperature for 18 hours.

The mixture was concentrated under reduced pressure and the residue was partitioned between ethyl acetate and aqueous sodium carbonate solution. The layers were separated, the organic phase was dried over MgSO 4 and evaporated under reduced pressure to provide the title compound as an oil, that crystallised on standing.

'H NMVR (400MHz, CDCI 3 8 1.24 3H), 1.45 9H), 1.58-1.78 (in, 2H), 1.81 (in, 2H), 2.38 (in, I 2.74-2.82 (in, 2H), 3.60 2H), 4.04-4.21 (in, 2H), 8.26 (br s, 1 8.82 (br s, 1 LOMS: m/z APCI+ 330 [MH]+ Preparation 62: tert-Butyl 4-{[2-(3,3,3-trifluoropropanoyl)hydrazino] carbonylipiperidine- 1 -carboxyl ate 0 03 0 F The title compound was obtained from 4-hydrazinocarbony-piperidine-1 -carboxylic acid tert-butyl ester (WO 2000039125, prep 27) and 3,3,3-trifluoropropionic acid, following a similar procedure to that described for preparation 61.

1 H NMVR (400MHz, CD 3 OD): 8 1.44 9H), 1.60 (mn, 2H), 1.80 (in, 2H), 2.43 (in, 1H), 2.81 (in, 2H), 3.22 2H), 4.10 (in, 2H). LCMS: m/z APCF 352 Preparation 63: tert-Butyl 4-[5-(ethoxyinethyl)-1 ,3,4-oxad iazol-2-yl]piperidine-1 carboxylate

HC

H

3 C 0\

H

3 C

_N

0 Pyridine (4 mL, 49.3mmol) was added dropwise to an ice-cooled solution of the compound of preparation 61 (4.06 g, 12.33 inol) in dichloromethane (60 inL). Triflic WO 200n5/063754 PCT/IBT2004/n004059 -72anhydride (4.2 mL, 24.6 mmol) was then added dropwise over 20 minutes and the solution was stirred for an hour at 0°C. It was then stirred for a further hour at room temperature. The mixture was basified to pH 4 using aqueous sodium bicarbonate solution, and extracted with dichloromethane. The combined organic extracts were dried over MgSO 4 and concentrated under reduced pressure. The crude product was purified by column chromatography on silica gel using dichloromethane:methanol:0.88 ammonia (97:3:0.3) to provide the title compound as a yellow oil, 1.25 g.

1 H NMR (400MHz, CDCI 3 5 1.23 3H), 1.44 9H), 1.81 2H), 2.04 2H), 2.96 2H), 3.10 1H), 3.60 2H), 4.14 2H), 4.66 2H). LCMS: m/zAPCl 312

[MH]*

Preparation 64: tert-Butyl 4-[5-(2,2,2-trifluoroethyl)-1,3,4-oxadiazol-2-yl]piperidine-1carboxylate HC NF H3C O- The title compound was obtained as a pale yellow solid, from the compound of preparation 62, following a similar procedure to that described for preparation 63.

1 H NMR (400MHz, CDCI 3 8 1.42 9H), 1.81 2H), 2.04 2H), 2.98 2H), 3.08 1H), 3.76 2H), 4.10 2H). LCMS: m/zAPCI' 358 [MNa] Preparation 65: 1-(4-Chlorobenzoyl)-4-(1,3,4-oxadiazol-2-yl)piperidine Nd-N N,N-Dimethylformamide dimethyl acetal (5.71 g, 47.9 mmol) was added to a solution of the compound of preparation 29 (9.0 g, 31.94 mmol) in N,N-dimethylformamide (100mL), and the reaction was stirred for 3 hours at 50 0 C. The mixture was concentrated under reduced pressure and the residue was suspended in toluene (150mL). p-Toluene sulphonic acid (1 g, 5.26 mmol) was added and the reaction was heated at 110°C for 18 hours. The reaction was diluted with ethyl acetate (100 mL), washed with brine, water and then brine again. The solution was dried over MgSO 4 and then evaporated under reduced pressure. The crude product was purified by column chromatography using a silica gel cartridge and dichloromethane:methanol (100:0 to 90:10) as eluant to afford the title compound as a white solid, 4.25 g.

LCMS: m/z APCI 292 [MH] WO 2005/063754 PCT/IB2004/004059 -73- Preparation 66: 1-(3-Chlorobenzoyl)-4-(1,3,4-oxadiazol-2-yl)piperidine 0 ci o N,N-Dimethylformamide dimethyl acetal (5.71 g, 47.9 mmol) was added to a solution of the compound of preparation 4 (9.0 g, 31.94 mmol) in tetrahydrofuran (6 mL), and the reaction was stirred for 18 hours at 50 0 C. Tic analysis showed that starting material remained, so additional N,N-dimethylformamide dimethyl acetal (15 mmol) was added and stirring was continued for a further 2 hours. The mixture was concentrated under reduced pressure and the residue was suspended in toluene (32 mL). p-Toluene sulphonic acid (1 g, 5.26 mmol) was added and the reaction was heated at 1100C for 18 hours. The reaction was diluted with ethyl acetate (100 mL), washed with saturated sodium bicarbonate solution (2x) and brine, then dried over Na 2

SO

4 and evaporated under reduced pressure. The crude product was purified by column chromatography on silica gel using an elution gradient of dichloromethane:methanol:0.88 ammonia (100:0:0 to 90:10:1) to afford the title compound.

1 H NMR (400MHz, CDCI 3 6 1.95 2H), 2.04-2.28 2H), 3.12-3.30 3H), 3.80 1H), 4.58 1H), 7.28 2H), 7.39 2H), 8.40 1H).

LCMS: m/z APCI' 292 [MH] Preparation 67: 1-(4-Chlorobenzoyl)-4-(5-methyl-1,3,4-oxadiazol-2-yl)piperidine 0 C CH, N,N-Dimethylacetamide dimethyl acetal (6.38 g, 47.9 mmol) was added to a solution of the compound of preparation 29 (9.0 g, 31.94 mmol) in N,N-dimethylformamide mL), and the reaction was stirred at room temperature for 1 hour. It was then stirred for a further 2 hours at 40°C. The mixture was diluted with toluene (150 mL), heated to 110°C and then p-toluene sulphonic acid (400 mg, 2.22 mmol) was added. The reaction was heated at 110°C for 18 hours, then cooled and concentrated under reduced pressure. The residue was dissolved in ethyl acetate, washed with ammonium chloride solution and brine, then it was dried over MgSO 4 and evaporated under reduced pressure to afford the title compound as an oil, 9.75 g.

WO 2005/063754 PCT/IR2nn004/n004059 -74- 'H NMR (400MHz, CDCa): 5 1.81-1.97 2H), 2.00-2.22 2H), 2.56 3H), 3.18 (m, 3H), 3.90 1H), 4.58 1H), 7.38 4H). LCMS: m/z APCI' 306 [MH] Preparation 68: 1-(4-Chlorobenzoyl)-4-(5-ethyl-1,3,4-oxadiazol-2-yl)piperidine o 0_ cl H 3

C

Triethyl orthopropionate (1.63 g, 9.23 mmol) was added to a solution of the compound of preparation 29 (2.0 g, 7.1 mmol) in N,N-dimethylformamide (10 mL), and stirred at for 3 hours. Tic analysis showed that starting material remained, so additional triethyl orthopropionate (0.5 g, 2.83 mmol) was added and the reaction was stirred at 60°C for a further 18 hours. The mixture was concentrated under reduced pressure, the residue was suspended in toluene (15 mL) and trifluoroacetic acid (5 drops) was added. The reaction was heated under reflux for 18 hours, then cooled and concentrated under reduced pressure. The crude product was purified by column chromatography using a silica gel cartridge and dichloromethane:methanol (100:0 to 95:5) as eluant to afford the title compound as an oil, 1.6 g.

'H NMR (400MHz, CDCI3): 8 1.38 3H), 1.90 2H), 2.00-2.21 2H), 2.85 2H), 3.19 3H), 3.80 1H), 4.58 1H), 7.38 4H). LCMS: m/z ES' 320, 322 [MH]' Preparation 69: 1-(3-Chlorobenzoyl)-4-[5-(ethoxymethyl)-1,3,4-oxadiazol-2-yl]piperidine 0

\-CH,

Pyridine (1.8 g, 22.84 mmol) and then triflic anhydride (3.22 g, 11.42 mmol) were added to an ice-cooled solution of the compound of preparation 32 (2.80 g, 7.61 mmol) in dichloromethane (50 mL). The reaction was then stirred at room temperature for 2 hours. The mixture was washed with ammonium chloride solution then with saturated aqueous sodium carbonate solution, dried over MgSO 4 and treated with activated carbon. This mixture was then filtered and the filtrate was evaporated under reduced pressure. The crude product was purified by column chromatography using a silica gel cartridge and an elution gradient of dichloromethane:methanol (100:0 to 95:5) to provide the title compound as a yellow oil, 566 mg.

Wn ')nnr1nK27rA D9-'F'1YY?')f1"A 1""A"rQ ~11~ fltItt'~ IDCITP~b I (Iat~l V t LV.J 5-1~*JlU~~~U~ 'H NMVR (400MHz, CDCI 3 8 1.23 3H), 1.83-2.24 (in, 3H), 3.14-3.26 (in, 4H), 3.62 (q, 2H), 3.80 (in, 1 4.59 (in, 1 4.67 2H), 7.25 (in, 1 7.40 (in, 3H). LCMS: m/z APCI- 350 Preparation 70: 1 -(4-Oh lorobenzoyl)-4-[5-(ethoxymethyl) 1, 3,4-oxadiazoI-2-yl]piperidine 0

NN

0_ The title compound was obtained as a crystalline solid from the compound of preparation 31 following a similar procedure to that described for preparation 69.

'H NMVR (400MHz, CDC 3 8 1.23 3H), 1.83-1.99 (in, 2H), 2.04-2.22 2H), 3.14- 3.26 3H), 3.62 2H), 3.79-3.90 (in, 4.59 (in, 4.67 2H), 7.40 (in,4H).

LCMS: m/zAPCI 4 350 [MH]" Preparation 71: 1 -(4-Chiorobenzoyl)-4-[5-(trifluoromethyl). I,3,4-oxad iazol-2yl]piperidine CI Fe F Triflic anhydride (1.98 mL, 11.7 mmol) was added to an ice-cooled solution of the compound of preparation 30 (1 .77 g, 4.69 inrol) and pyridine (1.53 mL,t 18.74 mmol) in dichloroinethane, (40 mL). The mixture was then allowed to warm to room temperature and stirred for 18 hours. The reaction was diluted with dlichloroinethane, washed with 2N hydrochloric acid, then saturated aqueous sodium bicarbonate solution. It was dried over MgSO 4 and evaporated under reduced pressure, The crude product was purified by column chromatography on silica gel using an elution gradient of d ichloromethane: methanol (99:1 to 96:4) to provide the title compound as a brown oil, 620 mg.

1 H NMR (400MHz, CDC1 3 81.60(in, 1H), 1.97 (in,3H), 2.20 2H), 3.20 (in,2H), 3.34 (in, 1H), 7.39 (in, 4H). LOMS: m/zAPCI+ 360 [MH]+ WO 2005/063754 PCT/IB2004/004059 -76- Preparations 72 to 74: The compounds of the following general structure shown below: O N HC /0 CH were prepared from N,N-dimethylacetamide dimethyl acetal and the appropriate hydrazide, following a similar procedure to that described for preparation 67.

Prep. Data

A

No 72 o 'H NMR (400MHz, CDCla): 5 1.46 9H), 2.58 3H), 3.15 Ni 1H), 3.37 1H), 3.68 1H), 3.92 1H), 4.00 (m, 1H), 4.21 1H), 4.70 1H). LCMS: m/zAPCI' 270

[MHJ]

73 1 H NMR (400MHz, DMSO-d 6 5 1.38 11H), 1.73 (m,

N

2H), 2.06 1H), 2.46 3H), 3.04 2H), 3.63 1H), 3.95 1H).

74" 'H NMR (400MHz, CDCIl): 8 1.44 9H), 2.19-2.38 (m, 2H), 2.54 3H), 3.44 1H), 3.60 3H), 3.80 1H).

A 3-hydrazinocarbonyl-pyrrolidine-1-carboxylic acid tert-butyl ester was used (obtained from CB Research and Development Inc.).

Preparation 75:1-(3-Chlorobenzoyl)-4-[5-(1 H-pyrazol-1-ylmethyl)-1,3,4-oxadiazol-2yl]piperidine 0 N I N

N

Ci A mixture of the compound of preparation 6 (1 g, 2.94 mmol), pyrazole (400 mg, 5.9 mmol) and potassium carbonate (610 mg, 4.4 mmol) in acetonitrile (10 mL) and N,Ndimethylformamide (10 mL) was stirred at 100 0 C for 18 hours. The cooled mixture was filtered, and the filtrate was concentrated under reduced pressure. The residue was diluted with ethyl acetate, washed with water and brine. It was then dried over MgSO 4 The crude product was purified by column chromatography on silica gel using dichloromethane:methanol:0.88 ammonia (100:0:0 to 95:5:0.5) to afford the title compound, 550 mg.

WO 2005/063754 PCT/IB2004/004059 -77- 'H NMR (400MHz, CD 3 OD): 5 1.76-1.92 3H), 1.99-2.22 3H), 3.18 1H), 3.70 1 4.50 1H), 5.63 2H), 6.35 1 6.38 1H), 7.37 1H), 7.44 2H), 7.52 1H), 7.80 1H); LCMS: m/z ES 372 [MH] t Preparation 76: tert-Butyl 4-[4-(4-chlorophenyl)-5-(2-morpholin-4-ylethyl)-4H-1,2,4triazol-3-yl]piperidine-1-carboxylate

N-N

N o N 0 HC 0 HC CH 3 CI Trifluoroacetic acid (0.35 mL, 4.3 mmol) was added to 4-morpholinpropanoic acid hydrazide (Comptes Rendus des Seances de I'acadamie des Sciences, Serie C;Sciences Chimiques 1976; 282 857-60) (1.5 g, 8.7 mmol) and the compound of preparation 46 (2.7 g, 7.25 mmol) in tetrahydrofuran (18 mL), and the reaction was heated under reflux for 8 hours. The cooled mixture was diluted with dichloromethane, washed with 1N sodium hydroxide solution, and evaporated under reduced pressure.

The crude product was purified by column chromatography on silica gel using an elution gradient of dichloromethane:methanol:0.88 ammonia (100:0:0 to 10:10:1) to give the title compound, 2.2 g.

'H NMR (400MHz, CDC3): 8 1.45 9H), 1.59-1.95 4H), 2.40 4H), 2.58 1H), 2.61-2.80 6H), 3.64 4H), 4.10 2H), 7.19 2H), 7.57 2H); LCMS: m/z APCI' 476, 478 [MH]' Preparations 77 to 87: The compounds of the general formula shown below: NN N H3C-O 0

H

3 C CH, 3 C were prepared from the compound of preparation 46 and the appropriate hydrazide, following a similar procedure to that described for preparation 76.

WO 2005/063754 WO 205/03754PCT/11B2004/004059 Prep. Data No.

77 X 2-oxo-1-pyrrolidinylmethyl 'H NMR (400MHz, CDCI 3 8 1.42 9H), 1.71 (in, 2H), 1.77-2.00 (in, 4H), 2.20 2H), 2.56-2.74 (mn, 3H), 3.45 2H), 4.06 (mn, 2H), 4.42 2H), 7.19 2H), 7.54 2H). LCMS: m/z APCI+ 460 [MH]+ SX imidazol-1-ylmethyl 1 H NMR (400MHz, 00013):8 1.41 9H), 1.70 (in, 2H), 1.83 (in, 2H), 2.55 (in, 1 2.65 (in, 2H), 4.10 (in, 2H), 5.17 2H), 6.78 1 6.90 2H), 7.01 I1H), 7. 19 I 7.52 2H). LCMS: m/z APCI+ 443 [MH]f SX 2-methyl-I H-imidazol-1 -ylmethyl 'HNMR (400MHz, 00013): 851.43 9H), 1.70 (in, 2H), 1.84 (mn, 2H), 2.01 3H), 2.52 (in, I1H), 2.66 (in, 2H), 4.10 (in, 2H), 5.02 2H), 6.55 1 H), 6.85 (mn, 3H), 7.53 2H). LCMS: m/z APCI" 457 [MH]f X I ,2,4-triazol-1 -ylmethyl 'H NMR (400MHz, CDC 3 5 1.42 9H), 1.76 (in, 2H), 1.86 (in, 2H), 2.55- 2.75 (in, 3H), 4.12 (in, 2H), 5.39 2H), 7.12 2H), 7.57 2H), 7.82 (s, 1 8. 05 I H).

LCMS: m/zAPCI+ 444 [MH]f 81 X tetrazol-1 -ylmethyl 'HNMR (400MHz, 00013): 6 1.43 9H), 1.63-1.95 (in, 4H), 2.58-2.75 (in, 3H), 4.11 (in, 2H), 5.60 2H), 7.15 2H), 7.59 2H), 8.81 1 H).

LCMS: m/z ES" 445 [MH]f X IHN MR (400MHz, 00013): 8 1.37 9H), 1.60-1.82 (in, 4H), 2.14 3H), 2.45-2.65 (in, 3H), 3.96-4.05 (mn, 4H), 5.82 1 7.06 2H), 7.44 (d, 2H). LCMS: m/z APCi+ 458 [MH]+ 83 X 3-methyl-I ,2,4-oxadiazol-5-ylmethyl H NMR (400MHz, 00013): 851.44 9H), 1.62-1.95 (in, 4H), 2.32 3H), 2.70 (in, 3H), 4.10 (in, 2H), 4.24 2H), 7.18 2H), 7.54 2H). LCMS: m/z APCI- 459 [MHf WO 2005/063754 WO 205/03754PCTIIB2004/004059 84 X pyrimidin-2-yloxymethyl 'H NMVR (400MHz, CDCI 3 8 1.41 9H), 1.59-76 (in, 2H), 1.86 (in, 2H), 2.58-2.76 (in, 3H), 4.10 (in, 2H), 5.39 2H), 6.95 (in, 1 7.26 2H), 7.43 2H), 8.42 2H). LCMS: m/z APCF 471, 473 [MH] X 2-piperidin-1-ylethyl 1 H NMVR (400MHz, CDCI 3 8 1.39-1.78 (in, 19H), 1.78-1.86 (in, 2H), 2.28- 3.04 (in, 3H), 2.56-2.82 (in, 6H), 4.08 (mn, 2H), 7.19 2H), 7.58 2H).

LOMS: m/z APCI" 474 [MH]f 67 X 2-pyridin-2-ylethyl 1 H NMVR (400MHz, CDC1 3 8 1.42 9H), 1.66 (in, 2H), 1.78-1.90 (mn, 2H), 2.56 (in, 1H), 2.60-2.74 (in, 2H), 2.98 2H), 3.26 2H), 4.06 (in, 2H), 7.03 2H), 7.12 (in, 1 7.18 1 7.50 2H), 7.58 (in, 1 8.42 1 H).

LCMS: m/z APCl' 468 [MH] 87 X =2-(3,5-dimethyl isoxazol-4-yI)ethyl 1 H NMVR (400MHz, CDC1 3 8 1.42 9H), 1.70 (in, 2H), 1.79-1.93 (mn, 2.04 3H), 2.54 (in, 1H), 2.60-2.80 (in, 4H), 4.10 (in, 2H), 5.32 2H), 6.90 2H), 7.56 2H). LCMS: m/lzAPCI 486 [MH]" A 1-imidazol-1-yl acetic acid hydrazide was used, prepared as described in Boll. Chim.

Farm. 114(2); 70-72; 1975.

B the reaction was stirred for 18 hours under reflux.

C 1 eq. hydrazide was used.

Preparation 88: tert-Butyl {1 -[4-(4-chlorophenyl )-5-methyl-4H-1 ,2,4-triazol-3-yllpiperidi n- 4-yllcarbamate

N

0 H-la Ci Acetic hydrazide (16.9 g, 228 mmol) followed by trifluoroacetic acid (4.4 mL, 57.1 mmol) were added to a solution of the compound of preparation 56 (43.6 g, 114 mnmol) in tetrahydrofuran (250 mL) and the mixture was heated under reflux for 7 hours. The cooled mixture was then washed with dilute ammonia solution, the layers were separated and the aqueous phase was extracted further with ethyl acetate. The combined organic solutions were dried over MgSO 4 and evaporated under reduced WO 2005/063754 PCT/IB2004/004059 pressure. The residue was triturated with ether (100 mL) and the resulting crystals were filtered off and dried in vacuo to afford the title compound, 32.4 g.

'H NMR (400MHz, CDCI 3 5 1.32 2H), 1.40 9H), 1.85 2H), 2.22 3H), 2.84 2H), 3.24 2H), 3.52 1H), 4.44 1H), 7.24 2H), 7.51 2H); LCMS: m/z APCIl 392 [MH]' Preparation 89: tert-butyl 4-[4-(4-chlorophenyl)-5-methyl-4H-1,2,4-triazol-3-yl]-1,4diazepane-1-carboxylate

^N

NH CIH, H3C CH, O Cl The title compound was obtained in 75% yield from the compound of preparation and acetic hydrazide, following a similar procedure to that described for preparation 88, except 2 equivalents of acetic hydrazide were used.

1 H NMR (400MHz, CDC3I): 8 1.41 9H), 1.58 1H), 1.72 1H), 3.02 1H), 3.20 1H), 3.24-3.44 5H), 3.52 2H), 4.24 2H), 7.38 2H), 7.50 2H); LCMS: m/z APCI 422 [MH] Preparation 90: Ethyl 1-[4-(4-chlorophenyl)-5-methyl-4H-1,2,4-triazol-3-yl]piperidine-4carboxylate

N

HCN

H

H,C^ 0 c i Trifluoroacetic acid (0.84 mL, 10.85 mmol) followed by acetic hydrazide (2.41 g, 32.6 mmol) were added to a solution of the compound of preparation 47 (7.38 g, 21.7 mmol) in tetrahydrofuran (100 mL), and the reaction was heated under reflux for 3 hours. The cooled mixture was partitioned between ethyl acetate and aqueous ammonia and the layers were separated. The organic phase was washed with brine, dried over MgSO 4 and evaporated under reduced pressure. The crude product was triturated with ether to provide the title compound as a white solid, 5.04 g.

WO 2005/063754 PCTfIB2004/004059 -81- 1 1- NMR (400MHz, CDC 3 831.22 3H), 1.60 (in, 1.83 (in, 2.22 3H), 2.38 (in, 1IH), 2.82 (mn, 3.28 (in, 2H), 4.14 2H), 7.25 2H), 7.55 2H); LCMS: m/z APCI+ 349 [MH]' Preparation 91: Ethyl I lorophenyl)-5-(2H- 1,2, 3-triazol-2-yI iethyl)-4H-1 ,2,4triazol-3-yl] pipe rid ine-4-ca rboxylate HC

N-

oN N N

"N

0- Trifluoroacetic acid (0.41 mL, 5.3 mmol) was added to a solution of the hydrazide of preparation 18 (3.6 g, 10.6 mmol) and the compound of preparation 47 (2.249g,15.9 mmol) in tetrahydrofuran (50 mL), and the reaction was heated under reflux for 15 hours.

The cooled mixture was partitioned between ethyl acetate and brine and the layers were separated. The organic phase was filtered, dried over MgSO 4 and evaporated under reduced pressure to provide the title compound as a gum.

1 H NMR (400MHz, CDC13): 5 1.21 3H), 1.58 (in, 1.82 (in, 2H), 2.38 (mn, 1 2.86 (mn, 2H), 3.38 (in, 2H), 4.12 2H), 5.59 2H), 7.15 2H), 7.40 2H), 7.50 2H).

Preparation 92: Ethyl I -[4-(4-chlorophenyl)-5-methyl-4H-1 ,2,4-triazol-3-yl]-4methylpiperidine-4-carboxylate N C H

N

0 The title compound was obtained as a clear oil in 86% yield, from the compound of preparation 48 and acetic hydrazide, following the procedure described for preparation 91.

'H NMR (400MHz, CDCI 3 6 1.18 1.23 1.40 (mn, 2H), 2.00 (in, 2.23 3H), 2.90 (in, 2H), 3.18 (in, 2H), 4.14 2H), 7.26 2H), 7.57 2H); LCMS: m/z APCI- 363 [MH]' WO 2005/063754 PCT/IB2004/004059 -82- Preparation 93: tert-Butyl 4-[4-(4-chlorophenyl)-5-(methoxymethyl)-4H-1,2,4-triazol-3yl]-2-methylpiperazine-1 -carboxylate

NCH

N CH 3 CH, CI Methoxyacetic acid hydrazide (1.95 g, 18.75 mmol) was added to a solution of the compound of preparation 49 (4.80 g, 12.50 mmol) in tetrahydrofuran (200 mL) and the solution was stirred for 10 minutes. Trifluoroacetic acid (710 mg, 6.25 mmol) was added and the reaction was stirred at room temperature for 18 hours. The mixture was concentrated under reduced pressure and the crude product was purified by column chromatography using a silica gel cartridge and dichloromethane:methanol (100:0 to 90:10) as eluant, and repeated using ethyl acetate as eluant to afford the title compound as a foam, 1.84 g.

'H NMR (400MHz, CDCI 3 5 0.98 3H), 1.42 9H), 2.82-3.05 4H), 3.24 1H), 3.34 3H), 3.80 1H), 4.18 1H), 4.34 2H), 7.40 2H), 7.64 2H); LCMS: m/z APCI' 363 [MH] Preparation 94: tert-Butyl 4-[4-(4-chlorophenyl)-5-(methoxymethyl)-4H-1,2,4-triazol-3yl]-3-methylpiperazine-1-carboxylate

H

3 C N O-CH,

N

Hc HIC CH, Cl The title compound was obtained in 67% yield, from the compound of preparation following a similar procedure to that described for preparation 93, except that the reaction was heated under reflux.

LCMS: m/z APCI 363 [MH] WO 2005/063754 PCT/IB2004/004059 -83- Preparation 95: tert-Butyl 4-[4-(4-chlorophenyl)-5-methyl-4H-1,2,4-triazol-3yl]piperazine-1 -carboxylate N

CH

OCH,

N

HC CH, O CI Acetic hydrazide (6.51 g, 88 mmol) was added to a solution of the compound of preparation 52 (32.46 g, 88 mmol) in n-butanol (250 mL) and the reaction was heated under reflux for 18 hours. The reaction was heated for a further 5 days under reflux with additional acetic hydrazide (36.5 g in total) added periodically. The cooled mixture was concentrated under reduced pressure and the residue was purified by column chromatography on silica gel using dichloromethane:methanol:0.88 ammonia (95:5:0.5) to provide the title compound as a white foam.

'H NMR (400MHz, CDC13): 8 1.42 9H), 2.24 3H), 3.01 4H), 3.38 4H), 7.25 2H), 7.54 2H). LCMS: m/zAPCI' 378 [MH]' Preparation 96: 1-[4-(4-Chlorophenyl)-5-methyl-4H-1,2,4-triazol-3-yl]-4phenylpiperidine-4-carbonitrile

N

CN

Acetic hydrazide (1.65 g, 22.3 mmol) was added to a solution of the compound of preparation 51 (3.3 g, 8.93 mmol) in n-butanol (5 mL) and the reaction was heated under reflux for 2 days. The cooled mixture was concentrated under reduced pressure and the residue was pre-adsorbed onto slica gel. It was then purified by column chromatography on silica gel using dichloromethane:methanol:0.88 ammonia (95:5:0.5), and the product was triturated with ethyl acetate to provide the title compound as a solid.

'H NMR (400MHz, CDCI 3 8 1.97-2.16 4H), 2.24 3H), 3.35 2H), 3.42 2H), 7.22-7.45 7H), 7.56 2H); LCMS: m/z ES' 400 [MNa]" WO 2005/063754 PCT/IB2004/004059 -84- Preparation 97: tert-Butyl 4-[4-(4-chlorophenyl)-5-(methoxymethyl)-4H-1,2,4-triazol-3yl]piperidine-1-carboxylate NN O-CH

N

HC CH, O CI Trifluoroacetic acid (2.14 g, 18.83 mmol) was added to a solution of the compound of preparation 57 (7.0 g, 23.54 mmol) and 4-chloroaniline (3.60 g, 28.24 mmol) in toluene mL), and the reaction mixture was heated under reflux for 18 hours. The cooled solution was concentrated under reduced pressure and the residue was purified by column chromatography using a silica gel cartridge and an elution gradient of dichloromethane:methanol (100:0 to 90:10) to afford the title compound as an oil, 4.25 g.

1 H NMR (400MHz, CD30D): 5 1.45 9H), 1.67-1.83 4H), 2.68-2.83 3H), 3.32 3H), 4.08 2H), 4.39 2H), 7.46 2H), 7.63 2H); LCMS: m/z APCI 407

[MH]'

Preparation 98: tert-Butyl 4-[4-(4-chlorophenyl)-5-(hydroxymethyl)-4H-1,2,4-triazol-3-yl] piperidine-1 -carboxylate .N OH

N\

H

3 C CH,

CI

A mixture of the compound of preparation 59 (6.8 g, 24 mmol), 4-chloroaniline (4.3 g, 33.7 mmol) and trifluoroacetic acid (0.9 mL, 12 mmol) in toluene (40 mL) was stirred at 100°C for 18 hours. The cooled mixture was evaporated under reduced pressure and the residue was dissolved in dichloromethane and washed with 2M sodium hydroxide solution. The organic solution was dried over MgSO 4 and concentrated under reduced pressure. The crude product was purified by column chromatography on silica gel using ethyl acetate:methanol:0.88 ammonia (95:5:0.5 to 90:10:1) to afford the title compound as an off-white solid, 7.1 g.

'H NMR (400MHz, CDCI 3 8 1.42 9H), 1.75 2H), 1.82 2H), 2.59-2.76 3H), 3.00 (br s, 1H), 4.10 2H), 4.58 2H), 7.30 2H), 7.58 2H); LCMS: m/zAPCI 393 [MH]' WO 2005/063754 -5 Preparations 99 to 101: The compounds of the general formula shown below: PCT/1B2004/004059 were prepared from the appropriate compound selected from preparations 60, 63 and 64 and 4-chloroaniline, following a similar procedure to that described for preparation 98.

Prep.

No. Data 9 X ethoxymethyl 'H NMVR (400MHz, CDC 3 8 1.09 3H), 1.43 9H), 1.68 (in, 2H), 2.59- 2.78 (mn, 3H), 3.42 2H), 4.14 (in, 2H), 4.42 2H), 7.24 2H), 7.57 (d, 2H). LCIVIS: m/z APCI+ 421 [MH]4 1 00" X 2,2,2-trifluoroethyl 'H NMR (400MHz, CDC 3 8 1.42 9H), 1.72 (in, 2H), 1.87 (mn, 2H), 2.58 (in, 1 2.66 (mn, 2H), 3.45 2H), 4.10 (in, 2H), 7.19 2H), 7.60 2H).

LCMS: m/z APCI+ 445 [MH]+ -TO 1 X morpholin-4-ylmethyl 'H NMVR (400MHz, GDCI 3 8 1.41 9H), 1.65-1.96 (mn, 4H), 2.38 (mn, 4H), 2.58-2.77 3H), 3.57 (in, 4H), 4.08 (in, 2H), 7.23 2H), 7.56 2H).

LCMS: m/z APCI+ 462 [MH]* A 0. 8 eq. of trifluoroacetic acid were used.

B I eq. of trifluoroacetic acid was used.

Preparation 102: tert-Butyl 2-[4-(4-chlorophenyl)-5-methyl-4H- 1,2,4-triazol-3-yl] morpholine-4-carboxylate The title compound was obtained as an oil in 75% yield from the compound of preparation 72 and 4-chloroaniline, following a similar procedure to that described for WO 2005/063754 PCTfIB2004/004059 -86preparation 98, except that 1 eq. of trifluoroacetic acid and 2 eq. of 4-chioroaniline were used.

LCMS: m/z APCI' 393 [MH]' Preparation 103: tert-Butyl 3-[4-(4-chloro-2-methylphenyl)-5-methyl-4H-1 ,2,4-triazol-3yljpiperidine-1 -carboxylate

N-N

I-C 3~O

N

ND

C. H 3 HC OH, 4-Chloro-2-methylaniline (3.78 g, 26.3 mmol) and p-toluene suiphonic acid (50 mg) were added to a solution of the oxadiazoie of preparation 73 (2.33 g, 8.9 mmol) in xylene ml-) and the reaction was heated under reflux for 24 hours. The cooled reaction was purified directly by column chromatography on silica gel using ethyl acetate: methanol: d ich loromethane (100:0:0 to 0:5:95). The product was azeotroped with dichloromethane to afford the title compound as a purple crystalline solid.

1 H NMR (400MHz, CDC13): 5 1.39 (in, 1 OH), 1.69 (in, 1 1.80-1.97 (mn, 2H), 1.98, 2.01 2xs, 2.17 3H), 2.32 (in, 1 2.59-3.17 (in, 4.10 (mn, 7.05, 7.12 (in, I1H), 7.38 1 7.44 1 LCMS: m/z APCl+ 391 [MHf Preparation 104: tert-Butyl 3-[4-(4-chloro-2-methylphenyl)-5-methyl-4H- 1,2,4-triazol-3yl]pyrrolidine-1 -carboxylate

N

3 OH3 HC CH 3 C I A mixture of the compound of preparation 74 (1.50 g, 5.92 inmol), trifluoroacetic acid (528 gl-, 7.1 inmol) and 4-chloroaniline (1.68 g, 11.8 inmol) in toluene (20 ml-) was heated at 110 0 OC for 18 hours. The cooled mixture was concentrated under reduced pressure and the residue was purified by coluinn chromatography on silica gel using an elution gradient of dichloromethane:methanol:triethylamine (98:1.5:0.5 to 90:10:1 to 80:20:1) to provide the title compound, 810 mng.

1 N MR (400MHz, CDCI 3 3 1.44 9H), 2.01 3H), 2.22 (mn, 5H), 2.94-3.70 (mn, 51-), 7.08 (mn, 1 7.37-7.46 (in, 2H); LCMS: m/z APCI+ 377 [MH3+ WO 2005/063754 PCT/IB2004/004059 -87- Preparation 105: tert-Butyl 4-[4-(4-chloro-2-methoxyphenyl)-5-methyl-4H-1,2,4-triazol-3yl]piperidine-1 -carboxylate

N-N

I HCH

N

S'H,0

CH,

CH

3 Cl A mixture of the compound of preparation 1 (2 g, 7.5 mmol), 4-chloro-2-methoxyaniline (Bioorganic and Medicinal Chemistry Letters, 1999; 9(19); 2805-2810) (1.77 g, 11.2 mmol) and trifluoroacetic acid (0.29 mL, 3.7 mmol) in toluene (20 mL) was stirred at 850C for 5 hours. The cooled mixture was diluted with ethyl acetate and washed with 2M sodium hydroxide solution. The aqueous solution was extracted with dichloromethane (2x) and the combined organic solutions were dried over Na 2

SO

4 and then concentrated under reduced pressure. The crude product was purified by column chromatography on silica gel using dichloromethane:methanol:0.88 ammonia (100:0:0 to 90:10:1) to afford the title compound, 2 g.

1H NMR (400MHz, CD 3 0D): 6 1.46 9H), 1.63-1.84 4H), 2.18 3H), 2.59-2.81 3H), 3.86 3H), 4.05 2H), 7.20 (dd, 1H), 7.39 2H); LCMS: m/zAPCI' 407

[MH]"

Preparation 106: tert-Butyl 4-[4-(2,4-dichlorophenyl)-5-methyl-4H-1,2,4-triazol-3-yl] piperidine-1-carboxylate

-N

N

ci H3C H3, C H 3

O

CI

The title compound was prepared from the oxadiazole of preparation 1 and 2,4dichloroaniline, following a similar procedure to that described for preparation 105, except that 2 equivalents of aniline were used.

'H NMR (400MHz, CDCI 3 6 1.42 9H), 1.65-1.94 4H), 2.20 3H), 2.42 1H), 2.61-2.78 2H), 4.10 2H), 7.22 1H), 7.46 1H), 7.66 1H).

WO 2005/063754 WO 205103754PCT11B2004/004059 -88- Preparations 107 to 116: HC N. N HC- HjN The appropriate aniline (Y'Y-PhNH 2 (1-1.1 eq.) followed by trifluoroacetic acid (0.5 eq.) were added to a solution of the compound of preparation 9 (1 eq.) in toluene (1.6 mlmmol- 1 and the reaction mixture was heated under reflux. The reaction was monitored by tic and upon completion (45 minutes to 9 hours) the mixture was allowed to cool. The reaction was washed with dilute ammonia solution and brine, then dried over MgSO 4 and evaporated under reduced pressure. The crude product was purified by column chromatography on silica gel using dichloromethane: methanol (95:5) as eluant to afford the title compounds.

Prep Data No 107 Y Y' =H; I HNMR (400MHz, CDC1 3 6 1.42 9H), 1.74 (in, 2H), 1.87 (mn, 2H), 1-2.73 (in, 3H), 4.08, (mn, 2H), 5.63 2H), 7.05 2H), 7.40-7.55 in). LCMS: m/z ES' 432 [MNa]+ 108 Y =4-OCH 3

H;

'H NMR (400MHz, CDCI,9): 5 1.42 9H), 1.74 (mn, 2H), 1.86 (in, 2H), 2.53-2.71 (mn, 3H), 3.84 3H), 4.08 (in, 2H), 5.61 2H), 6.91 2H), 6.96 2H), 7.50 2H) LCMS: m/z ES+ 462 [MNa]+ 109 Y H; 'H NMR (400MHz, CDCI 3 8 1.42 9H), 1.72 (in, 2H), 1.89 (mn, 2H), 2.56 (mn, 1IH), 2.65 (in, 2H), 4.09 (mn, 2H), 5.62 2H), 7.06 1IH), 7.13 (in, 2H), 7.48 LCMS: m/z ES* 428 [MNa]+ Y16 =4-13r;Y=H; 'H NMR (400MHz, CDC13): 6 1.46 9H), 1.74 (mn, 2H), 1.92 (in, 2H), 2.59 (mn, 1 2.68 (mn, 2H), 4.12 (mn, 2H), 5.66 2H), 6.98 2H), 7.52 (s, 2H), 7.61 2H). LOMS: m/z ES+ 510 [MNaf 111 Y =4-CF 3

Y'=H;

1 H N MR (400MHz, CDC13): 8 1.42 9H), 1.74 (in, 2H), 1.90 (in, 2H), 2.54 (in, 1H), 2.65 (in, 2H), 4.10 (mn, 2H), 5.67 2H), 7.21 2H), 7.47 2H), 7.73 LOMS: m/z ES+ 500 [MNa]' WO 2005/063754 WO 205103754PCT11R2004I004059 -89- 112 Y =4-CH 3

H;

'HNMR (400MHZ, CDCI,): 6 1.42 9H), 1.74 (in, 2H), 1.87 (in, 2.41 3H), 2.54-2.73 (in, 3H), 4.07 (in, 2H), 6.94 2H), 7.26 2H), 7.52 2H). LOMS: m/lz ES 446 [MNaI+ 113 Y =4-CN; H; 'H NMVR (400MHz, CDC 3 861.42 9H), 1.72 (in, 2H), 1.92 (mn, 2H), 2.55 (mn, 1 2.66 (in, 2H), 4.09 (mn, 2H), 5.68 2H), 7.28 2H), 7.52 (s, 2H), 7.79 2H). LCMS: m/z ES+ 435 [MH]+ -T1 4 Y =4-CI; Y' =2-CH1- 3 1 H NMR (400MHz, CDCI 3 6 1.45 9H), 1.62-1.78 (mn, 3H), 1.86 3H), 2.00 (in, 1 2.41 (in, 1IH), 2.67 (in, 2H), 4.01-4.18 (in, 2H), 5.52 1IH), 5.67 1 6.87 1 7.25 1 7.34 1 7.48 2H) LCMS: m/z ES+ 458 [MH]* 115 Y =4-CI; Y' =3-F; 1 H NMR (400MHz, CDCI 3 6 1.44 9H), 1.73 (in, 2H), 1.89 (in, 2H), 2.57 (in, 1 2.68 (in, 2H), 4.11 (in, 2H), 5.67 2H), 6.84-6.92 (in, 2H), 7.46- 7.54 (in, 3H). LCMVIS: m/z ES+ 462 [MH]* 116 Y =4-CI; Y' =3-CI1; 1 H NMR (400MHz, CDC 3 6 1.42 9H), 1.73 (in, 2H), 1.88 (in, 2H), 2.55 (in, 1IH), 2.70 (in, 2H), 4.08 (in, 2H), 5.67 2H), 6.97 1IH), 7.07 (d, 1 7.52 2H), 7.55 1 LCMS: m/z ES+ 478 [MH]+ A 1. 5 eq of aniline were used in the reaction.

Preparation 117: tert-Butyl 4-[4-(4-ch ({[(methylthio)carbonothioyloxylmethyl )-4H-1 ,2,4-triazol-3-y] piperidine-1 -carboxylate HC N- N

H

3 C/ 0 s 0 3

CI

Sodium hydride (60% dispersion in mineral oil, 112 mg, 2.8 mmol) was added to an icecooled solution of the compound of preparation 98 (11 g, 2.55 inmol) in tetrahydrofuran inL), and the solution was stirred for an hour at room temperature. Carbon disulfide (230 jill, 3.83 iniol) and then methyl iodide (238 p.L, 3.83 inmol) were added, and the reaction was stirred at room temperature for a further 2 hours. Water (1 mL) was added, the mixture was concentrated under reduced pressure and the residue was partitioned WO 200n5/063754 PCT/IBT2004/n004059 between dichloromethane and aqueous sodium bicarbonate solution. The organic phase was dried over MgSO 4 and evaporated under reduced pressure. The crude product was purified by column chromatography on silica gel using an elution gradient of dichloromethane:methanol:0.88 ammonia (97:3:0.3 to 95:5:0.5) to afford the title compound as a pale yellow solid, 460 mg.

'H NMR (400MHz, CDCI 3 8 1.42 9H), 1.77 2H), 1.90 2H), 2.54 3H), 2.58- 2.77 3H), 4.13 2H), 5.56 2H), 7.20 2H), 7.57 2H); LCMS: m/zAPCI 4 483 [MH]+ Preparations 118 to 137:

N

H y.

4M Hydrochloric acid in dioxan (8 to 30 eq.) was added to a solution of the appropriate protected piperidine selected from preparations 76, 77, 80 to 85, and 105 to 116 (1 eq.) in methanol (9 to 22.5 mLmmol-') and the reaction was stirred at room temperature for between 1.5 and 3 hours. The mixture was concentrated under reduced pressure, the was residue partitioned between dichloromethane and 1M sodium hydroxide solution and the layers were separated. The organic solution was dried over MgS0 4 and evaporated under reduced pressure to afford the title compounds.

Prep Data No 118" Y 4-CI; 2-CI; X CH 3 'H NMR (400MHz, CD 3 OD): 5 2.05-2.22 4H), 2.58 3H), 3.10 3H), 3.45 2H), 7.78 1H), 7.84 1H), 8.00 1H).

LCMS: m/zAPCI 311 [MH] 119 A Y 4-CI; 2-OCH 3 X CH 3 'H NMR (400MHz, CD 3 OD): 5 2.00-2.22 4H), 2.62 3H), 3.08 3H), 3.44 2H), 3.95 3H), 7.30 1H), 7.50 1H), 7.61 1H).

LCMS: m/z APCI 307 [MH]' 120 Y 4-Cl; Y' H; X 2-oxo-1-pyrrolidinylmethyl 1 H NMR (400MHz, CDCI 3 8 1.70-1.90 4H), 1.98 2H), 2.21 2H), 2.58 3H), 3.14 2H), 3.45 2H), 4.42 2H), 7.18 2H), 7.58 (d, 2H).LCMS: m/z APCI 360 [MH]' WO 2005/063754 WO 205/03754PCT/1B2004/004059 121 Y 4-Cl; Y' H; X 1,2,4-triazol-1 -ylmethyl 'H NMR (400MHz, CDCI 3 8 1.80-1.98 (in, 4H), 2.17-2.30 (in, 1IH), 2.62 (mn, 2H), 3.22 (in, 2H), 5.38 2H), 7.04 2H), 7.52 2H), 7.82 1 8.03 1IH). LCMS: m/z APC+ 344 [MH]+ 122 Y H; Y' H; X 1,2,3-triazol-2-ylmethyl 'H NMR (400MHz, CD 3 OD): 5 1.83-1.96 (in, 4H), 2.65-2.85 (in, 3H), 3.25 (d, 2H), 5.66 2H), 7.23 2H), 7.43-7.60 (5H, m) LGMS: m/z ES' 310 [MH]f 123 Y 4-F; Y' H; X 1,2,3-triazol-2-ylmethyl 'H NMR (400MHz, CDCI 3 8 1.75 (in, 2H), 1.85 (mn, 2H), 2.53 (in, 3H), 3.16 2H), 5.62 2H), 7.02 2H), 7.12 2H), 7.49 2H). LCMS: m/z ES+ 328 [MH' 124 Y 4-Br; H; X 1,2,3-triazol-2-ylmethyl H NMR (400MHz, CDCI 3 5 1.79 (mn, 2H), 1.87 (mi, 2H), 2.54-2.65 3H), 5.64 2H), 6.93 2H), 7.52 2H), 7.59 2H). LCMS: m/z ES' 388

[MH]'

125 Y 4-Cl; 3-F; X 1,2,3-triazol-2-ylmethyl 'H NMR (400MHz, CDCI 3 5 1.80 (in, 2H), 1.93 (in, 2H), 2.54-2.66 (mn, 3H), 3.22 2H), 5.66 2H), 6.80-6.88 (in, 2H), 7.47-7.53 (in, 3H). LCMS: m/z ES' 362 [MH]' 126 Y 4-Cl; Y' 3-Cl; X 1,2,3-triazol-2-ylmethyl 'HNMR (400MHz, CDCI 3 5 1.80 (mn, 2H), 1.91 (in, 2H), 2.52-2.66 (mn, 3H), 3.20 2H), 5.66 2H), 6.94 1 7.07 1IH), 7.52 2H), 7.54 (d, 1 LCMS: m/z ES" 378 [MH]f 127 Y 4-CF 3 Y' H; X 1,2,3-triazol-2-ylmethyl 'H NMR (400MHz, CDC1 3 5 1.76 (in, 2H), 1.87 (mn, 2H), 2.56 (mn, 3H), 3.14 2H), 5.66 2H), 7.20 2H), 7.46 2H), 7.64 2H). LCMS: m/z ES+ 378 [MH]' 128 Y 4-Cl; Y' 2-CH 3 X =1,2,3-triazol-2-ylmethyl 'H NMR (400MHz, CDCI 3 851.68-1.87 (in, 5H), 1.91 -2.15 (in, 2H), 2.45 (in, 1 1.55-1.72 (in, 2H), 3.17 1 3.28 1 5.47 1 5.64 1 H), 6.84 1 7.20 1 7.31 1 7.46 2H). LCMS: m/z ES 4 358

[MH]

4 WO 2005/063754 WO 205/03754PCT/1B2004/004059 129 Y 4-CH 3 Y' H; X l,2,3-triazol-2-ylmethyl 1 HNMR (400MHz, CDC 3 5 1.74-1.98 (in, 4H), 2.43 3H), 2.55-2.68 (in, 3H), 3.20 2H), 5.60 2H), 6.92 2H), 7.24 2H), 7.51 2H).

LCMS: m/z ES' 324 [MH] 4 130 Y 4-OCH 3 Y' H; X l,2,3-triazol-2-ylmethyl 'H NMR (400MHz, CD 3 OD): 8 1.72-1.79 (in, 4H), 2.45 (in, 2H), 2.65 (in, 1H), 3.00 2H), 3.82 3H), 5.62 2H), 7.00 2H), 7.11 2H), 7.57 (s, 2H). LOMS: m/z ES 340 [MHJ" 131 Y =4-CN; H; X 1,2,3-triazol-2-ylmethyl 1H NMR (400MHz, CDC 3 5 1.61-1.95 (in, 4H), 2.44-2.60 (in, 3H), 3.16 (in, 2H), 5.66 2H), 7.21 2H), 7.48 2H), 7.76 2H). LCMS: mlz ES' 335 [MH]" SY 4-Cl; Y' H; X tetrazol-1 -ylmethyl 'H NMR (400MHz, DMSO-ds): 851.80-1.98 (in, 4H), 2.80 (in, 3H), 3.20 (in, 2H), 3.56 4H), 5.77 2H), 7.43 2H), 7.60 2H), 8.75 (br s, 1 H), 8.94 (br s, 1 9.18 1 LCMS:. m/z ES" 345, 347 [MH]+ Y 4-Cl; Y' H; X 'HNMR (400MHz, GD3OD): 5 2.05 (in, 2H), 2.20 (in, 2H), 3.00 (in, 2H), 3.18 (in, 1 3.38 (in, 2H), 3.54 3H), 4.25 2H), 7.48 (mn, 2H), 7.58 2H).

LCMS: m/z APC' 358 [MH]+ 1-34K Y 4-Cl; Y' H; X 3-methyl-I ,2,4-oxadiazol-5-ylmethyl 1 H NMR (400MHz, CD 3 00): 5 2.12 (mn, 4H), 2.34 3H), 3.02 (in, 2H), 3.15 (in, 1 3.43 (in, 2H), 3.64 2H), 7.57 (in, 2H), 7.68 2H). LCMS: m/z APCI- 359 [MH- 135 Y 4-Cl; Y' H; X pyrimidin-2-yloxymethyl 'H NMR (400MHz, CDCI 3 8 2.05 (mn, 4H), 2.80-2.95 (mn, 3H), 3.46 (mn, 2H), 5.40 (in, 2H), 6.98 (mn, 1IH), 7.20-7.34 (mn, 1IH), 7.41-7.58 (in, 3H), 8.44 (in, 2H). LCMS: m/z APC+ 371 [MH] 4 136 Y 4-Cl; Y' H; X 2-piperidin-1 -ylethyl H N MR (400MHz, CDC 3 5 1.41 (in, 2H), 1.56 (mn, 4H), 1.78-1.97 (mn, 4H), 2.20-2.40 (mn, 6H), 2.60-2.78 (in. 5H), 3.22 (mn, 2H), 7.18 2H), 7.57 (d, 2H).LCMS: m/z APCI+ 374 [MH]" WO 2005/063754 WO 205/03754PCT/1B2004/004059 137 Y 4-Cl; Y' H; X 2-morpholin-4-ylethyl 'H NMR (400MHz, CDC 3 8 1.70-1.90 (in, 4H), 2.38 (in, 4H), 2.58 (in, 3H), 2.70 4H), 3.14 (in, 2H), 3.61 (in, 4H), 7.18 2H), 7.57 2H). LCMS: m/z APCl" 376 [MH]' A The reaction mixture was evaporated under reduced pressure, prior to work-up to isolate the hydrochloride salt of the title compound.

Preparations 138 to 141: A solution of the appropriate protected piperidine selected from preparations 78 to 79, and 86 to 87 (1 eq.) in 2.2M methanolic hydrochloric acid (13 mlmmol-1) was stirred at room temperature for 18 hours. The mixture was concentrated under reduced pressure and the residue was azeotroped with toluene. The crude product was partitioned between dichloromethane and 1M sodium hydroxide solution and the layers were separated. The organic solution was dried over MgSQ 4 and evaporated under reduced pressure to afford the title compounds.

Prep X Data No 138 'H NMR (400MHz, CDCI 3 8 1.78 (in, 2H), 1.80-1.98 (in, N2H), 2.56 (in, 3H), 3.16 (in, 2H), 5.12 2H), 6.75 1H), 6.84 2H), 7.00 2H), 7.50 2H). LCMS: m/zAPCI+ 343 [MH]f 139 7N 'H NMVR (400MHz, CDC 3 8 1.74-1.97 (in, 4H), 2.04 (in, N 3H), 2.48-2.64 (in, 3H), 3.19 (in, 2H), 5.00 2H), 6.46 (s,

H

3 C 1H), 6.82 2H), 6.85 2H), 7.48 2H). LCMS: m/z APCI+ 357 [MH]' 7T~o' N 1H NMVR (400MHz, C~DC): 5 2.06-2.19 (mn, 4H), 3.03 (in, 2H), 3.18-3.22 (in, 1 3.30 (in, 2H), 3.44 (mn, 2H), 3.60 (mn, 2H), 7.77 4H), 7.98 (mn, 1 8.05 1IH), 8.58 (in, 1 8.78 1 H).

LCMS: m/z APCI+ 368 [MH]f WO 2005/063754 PCT/IB2004/004059 -94- 141A H 'H NMR (400MHz, CD30D): 8 1.99 3H), 2.12 7H), N 2.78 2H), 2.97 2H), 3.00-3.18 3H), 3.43 2H),

H

3 C 0 7.54 2H), 7.78 2H).

LCMS: m/z APCI' 386 [MH]f A The reaction mixture was evaporated under reduced pressure, and azeotroped with toluene. The product was triturated with ethyl acetate, filtered and dried to afford the hydrochloride salt of the title compound.

Preparation 142: 4-[4-(4-Chlorophenyl)-5-(methoxymethyl)-4H-1,2,4-triazol-3-yl] piperidine HN C

N

N

N"

ci 4M Hydrochloric acid in dioxan (60 mL) was added to a solution of the compound of preparation 97 (3.75 g, 9.22 mmol) in dioxan (50 mL) and the reaction was stirred at room temperature for 3 hours. The mixture was evaporated under reduced pressure and the residue was re-dissolved in dichloromethane and washed with aqueous ammonia, then brine. The organic solution was dried over MgS0 4 and evaporated under reduced pressure. The crude product was purified by column chromatography using a silica gel cartridge and dichloromethane:methanol:0.88 ammonia (90:10:1) as eluant to afford the title compound, 1.99 g.

'H NMR (400MHz, CDC13): 8 1.80-1.98 4H), 2.57-2:70 3H), 3.20 2H), 3.25 (s, 3H), 4.38 2H), 7.22 2H), 7.57 2H). LCMS: m/z APCI 307 [MH] Preparation 143: 4-[4-(4-Chlorophenyl)-5-(ethoxymethyl)-4H-1,2,4-triazol-3-yl] piperidine hydrochloride HN ,N .HCH N\

N-

cl -CH, 4M Hydrochloric acid in dioxan (20 mL) was added to a solution of the compound of preparation 99 (990 mg, 2.35 mmol) in dioxan (20 mL) and the reaction was stirred at room temperature for 18 hours. The mixture was evaporated under reduced pressure, WO 200n5/063754 PCT/IBT2004/n004059 and the residue was azeotroped with dichloromethane to afford the title compound, 910 mg.

'H NMR (400MHz, CD 3 OD): 8 1.02 3H), 1.80 4H), 2.55 2H), 2.76 1H), 3.05 2H), 3.38 2H), 4.42 2H), 7.45 2H), 7.63 2H); LCMS: m/z APCI' 321 [MH]f Preparation 144: 1-[4-(4-Chlorophenyl)-5-methyl-4H-1,2,4-triazol-3-yl]piperazine dihydrochloride N ci S.2HCI 4M Hydrochloric acid in dioxan (13.75 mL) was added to a solution of the compound of preparation 95 (4.12 g, 110 mmol) in dichloromethane (50 mL) and the reaction was stirred at room temperature for 30 minutes. The mixture was evaporated under reduced pressure and dried in vacuo to afford the title compound as a white solid, 3.8 g 'H NMR (400MHz, CDCIl): 8 2.23 3H), 2.80 4H), 3.05 4H), 7.25 2H), 7.50 2H).

Preparation 145: 1-[4-(4-Chlorophenyl)-5-methyl-4H-1,2,4-triazol-3-yl]piperidin-4-amine dihydrochloride N N

CH

3

N

Q H,N .2HCI A suspension of the compound of preparation 88 (32.3 g, 82.5 mmol) in methanol (250 mL) and 4N hydrochloric acid in dioxan (40 mL) was warmed to 50 0 C for 3 hours. The mixture was concentrated under reduced pressure and the residue was slurried in tetrahydrofuran (50 mL). The resulting solid was filtered off and dried in vacuo to provide the title compound.

'H NMR (400MHz, CDaOD): 8 1.65 2H), 1.96 2H), 2.36 3H), 3.07 2H), 3.36 1H), 3.47 2H), 7.66 2H), 7.75 2H). LCMS: m/zAPCI 292 [MH]' WO 2005/063754 PCT/RIB200n4/0040n59 -96- Preparation 146: 3-[4-(4-Chloro-2-methylphenyl)-5-methyl-4H-1,2,4-triazol-3-yl] piperidine /N CH N

CH,

NH ci 4M Hydrochloric acid (5 mL) was added to a solution of the compound of preparation 103 (846 mg, 2.16 mmol) in dioxan (10 mL) and the reaction was stirred at room temperature for 18 hours. Tic analysis showed that starting material remained, so additional 4M hydrochloric acid in dioxan (5 mL) was added and the reaction was stirred for a further hour at room temperature. The reaction mixture was then concentrated under reduced pressure and the crude product was purified by column chromatography on silica gel using dichloromethane:methanol:0.88 ammonia (90:10:1). The product was azeotroped with dichloromethane and ether to afford the title compound as an off-white foam.

H NMR (400MHz, CDCI 3 5 1.49 1H), 1.68-1.93 3H), 1.97 3H), 2.16 3H), 2.59 1H), 2.80 1H), 3.03 1H), 3.16 1H), 7.06 (2xd, 1H), 7.35 (2xm, 1H), 7.42 (2xd, 1H); LCMS: m/zAPCI 291 [MH]' Preparation 147: 4-(4-Chloro-2-methylphenyl)-3-methyl-5-pyrrolidin-3-yl-4H-1,2,4triazole N CH 3 SN \Hd H Cl A solution of the compound of preparation 104 in 4M hydrochloric acid in dioxan mL) was stirred at room temperature for 4 hours. The mixture was partitioned between ethyl acetate and 2N sodium hydroxide solution, and the layers were separated. The organic solution was dried over MgSO 4 and evaporated under reduced pressure to provide the title compound.

1 H NMR (400MHz, CDCI 3 5 2.00 5H), 2.20 5H), 2.80-3.02 2H), 3.10-3.27 1H), 7.05 1H), 7.38 1H), 7.41 1H); LCMS: m/zAPCl' 277 [MH] WO 2005/063754 PCT/IB2004/004059 -97- Preparation 148: 1-[4-(4-Chlorophenyl)-5-(methoxymethyl)-4H-1,2,4-triazol-3-yl]-1,4diazepane

O-CH,

N

N

HN ci 4M Hydrochloric acid in dioxan (25 mL) was added to a solution of the compound of preparation 89 (5.45 g, 12.93 mmol) in dioxan (30 mL) and the reaction was stirred at room temperature for 18 hours. The mixture was concentrated under reduced pressure and the residue was partitioned between water and ether. The layers were then separated, the aqueous phase was basified using sodium hydroxide and the solution was extracted with dichloromethane The combined organic extracts were dried over MgSO 4 to afford the title compound as a foam, 3.84 g.

1 H NMR (400MHz, CD 3 0D): 5 1.78 2H), 2.84 4H), 3.21 3H), 3.30 4H), 4.24 2H), 7.50 2H), 7.60 2H); LCMS: m/z APCI 322 [MH] Preparation 149: 1-[4-(4-Chlorophenyl)-5-(methoxymethyl)-4H-1,2,4-triazol-3-yl]-2methylpiperazine

O-CH

H Cl The title compound was obtained as a yellow oil in 95% yield from the compound of preparation 94, following the procedure described for preparation 148.

1 H NMR (400MHz, CDCIa): 5 1.14 3H), 2.10 (br s, 1H), 2.60 1H), 2.82 2H), 2.97 1H), 3.07 2H), 3.35 3H), 4.28 1H), 4.40 1H), 7.38 2H), 7.50 (d, 2H); LCMS: m/zAPCI' 322 [MH] WO 2005/063754 PCT/IB2004/004059 -98- Preparation 150: 1-[4-(4-Chlorophenyl)-5-(methoxymethyl)-4H-1,2,4-triazol-3-yl]-3methylpiperazine

HN

N NN cl CH, Trifluoroacetic acid (25 mL) was added to an ice-cooled solution of the compound of preparation 93 (2.80 g, 6.63 mmol) in dichloromethane (25 mL) and the solution was stirred at room temperature for an hour. The mixture was concentrated under reduced pressure and the residue was re-dissolved in ethyl acetate, then washed with 1N sodium hydroxide solution. The organic solution was dried over MgSO 4 and evaporated under reduced pressure. The crude product was purified by column chromatography using a silica gel cartridge and an elution gradient of dichloromethane:methanol:0.88 ammonia (100:0:0 to 90:10:1) to afford the title compound as an oil, 780 mg.

1H NMR (400MHz, CDC13): 8 1.19 3H), 2.98 2H), 3.02-3.23 5H), 3.36 3H), 4.34 2H), 7.40 2H), 7.52 2H); LCMS: m/z APCI' 322 [MH]' Preparation 151: 4-[4-(4-Chloro-2-methylphenyl)-5-methyl-4H-1,2,4-triazol-3yl]piperidine N/N- CH, N N H Ci A mixture of the compound of preparation 1 (3 g, 11.2 mmol), 4-chloro-2-methylaniline (2.4 g, 16.8 mmol) and trifluoroacetic acid (0.8 mL, 11.2 mmol) in toluene (30 mL) was stirred at room temperature for 1100C for 18 hours. The cooled mixture was concentrated under reduced pressure, 2M sodium hydroxide solution (10 mL) added and the mixture was azeotroped with toluene. The crude product was purified by column chromatography on silica gel using dichloromethane:methanol:0.88 ammonia (95:5:0.5 to 80:20:3) to afford the title compound as an off-white foam, 1.45 g.

1 H NMR (400MHz, CD 3 OD): 8 1.81 2H), 1.92 2H), 2.00 3H), 2.19 3H), 2.60-2.78 3H), 3.20 2H), 7.38 1H), 7.46 1H), 7.59 1H); LCMS: m/z APCI' 291 [MH]' WO 2005/063754 PCT/IB2004/004059 -99- Preparation 152: 4-[4-(4-Chloro-2-fluorophenyl)-5-methyl-4H-1,2,4-triazol-3-yl]piperidine ditrifluoroacetate N N

CH

3

N-N

H 2CF 3

CO

2 H CI A mixture of the compound of preparation 1 (900 mg, 3.4 mmol), 4-chloro-2fluoroaniline (109.1 mg, 0.75 mmol) and trifluoroacetic acid (288 pL, 3.74 mmol) in toluene (8 mL) was stirred at 110 0 C for 72 hours. The cooled mixture was concentrated under reduced pressure, 0.88 ammonia added and the mixture was concentrated under reduced pressure. The residue was azeotroped with toluene and the crude product was purified by column chromatography on silica gel using an elution gradeint of dichloromethane:methanol:0.88 ammonia (90:10:1 to 80:20:3) to afford the title compound as an off-white foam, 985 mg.

1 H NMR (400MHz, CDCI 3 5 2.02-2.30 7H), 2.80 1H), 3.10 2H), 3.59 (m, 2H), 3.86 1H), 7.26 1H), 7.40 2H), 9.34 (brs, 1H), 10.10 (brs, 1H); LCMS: m/zAPCI' 295 [MH]+ Preparation 153: 4-{4-(4-Chlorophenyl)-5-[(2,2,2-trifluoroethoxy)methyl]-4H-1,2,4triazol-3-yl}piperidine N N C F ci XF Trifluoroacetic acid (2.49 g, 21.8 mmol) was added to a solution of 4-chloroaniline (3.63 g, 28.4 mmol) and the compound of preparation 58 (8.0 g, 21.9 mmol) in toluene mL), and the reaction heated was under reflux for 48 hours. Tic analysis showed that starting material remained, so additional trifluoroacetic acid (8 mL) was added and the reaction was heated for a further 4 hours under reflux. The cooled mixture was extracted with water, the aqueous solution was basified using potassium hydroxide and then extracted with dichloromethane (4x100 mL). The combined organic extracts were dried over MgSO 4 and evaporated under reduced pressure. The crude product was purified by column chromatography using a silica gel cartridge and an elution gradient of WO 2005/063754 PCT/IB2004/004059 -100dichloromethane:methanol:0.88 ammonia (100:0:0 to 85:15:1.5) to give the title compound, 4.34 g.

1 H NMR (400MHz, CDCI 3 8 1.86-2.04 4H), 2.78 3H), 3.37 2H), 3.82 2H), 4.22-4.41 (brs, 1H), 4.58 2H), 7.22 2H), 7.58 2H); LCMS: m/z ES' 375.1

[MH]'

Preparation 154: 4-{4-(4-Chlorophenyl)-5-[(trifluoromethoxy)methyl]-4H-1,2,4-triazol-3yl}piperidine

HN

F

Cl F F Hydrogen fluoride-pyridine (0.35 mL, 13.2 mmol), followed by a solution of the compound of preparation 117 (160 mg, 0.33 mmol) in dichloromethane (1 mL) were added to a solution of 1,3-dibromo-2,4-dimethylhydantoin (283 mg, 1.0 mmol) in dichloromethane (5 mL) at -78 0 C. The reaction was allowed to warm to room temperature over 30 minutes then stirred for a further hour. The mixture was washed with 1N sodium hydroxide solution, dried over MgSO 4 and evaporated under reduced pressure. The crude product was purified by column chromatography on silica gel using dichloromethane:methanol:0.88 ammonia (90:10:1) as eluant to provide the title compound as a yellow oil, 45 mg.

LCMS: m/zAPCI+ 361 [MH] Preparation 155: 4-[4-(4-Chlorophenyl)-5-methyl-4H-1,2,4-triazol-3-yl]benzonitrile

N

N N\ CH,

N

NC CI Trifluoroacetic acid (600 pL, 8.1 mmol) was added to a suspension of 4-chloroaniline (2.1 g, 16.2 mmol) and 4-(5-methyl-1,3,4-oxadiazol-2-yl)benzonitrile (Journal for Praktische Chemie, 1994; 336(8); 678-85) (3.0 g, 16.2 mmol) in tetrahydrofuran (50 mL) and the reaction was heated at reflux for 22 hours. The cooled mixture was partitioned between ethyl acetate (300 mL) and 20% aqueous 0.88 ammonia (120 mL), and then the layers were separated. The organic phase was dried over MgSO 4 and evaporated WO 2005/063754 PCT/IB2004/004059 -101under reduced pressure. The residue was triturated with ether and a minimum volume of ethyl acetate to afford the title compound as a white crystalline solid, 2.82 g.

1 H NMR (400MHz, CDCI 3 8 2.38 3H), 7.19 2H), 7.55 4H), 7.60 2H); LCMS: m/z ES' 295 [MH]+ Preparation 156: 4-[4-(4-Chlorophenyl)-5-methyl-4H-1,2,4-triazol-3-yl]benzoic acid N IN

CH

3

N

OH Cl A solution of potassium hydroxide (2.6 g, 46.0 mmol) in water (10 mL) was added to a solution of the compound of preparation 155 (2.7 g, 9.2 mmol) in ethylene glycol dimethyl ether (40 mL) and the reaction was heated under reflux for 18 hours. Ethanol mL) was added and the reaction was heated under reflux for a further 72 hours. The cooled mixture was acidified to pH 6 and concentrated under reduced pressure. The residue was extracted using dichloromethane:methanol:0.88 ammonia (84:14:2), the suspension was then filtered and the filtrate was evaporated under reduced pressure.

The product was triturated with ether, filtered off and dried to afford the title compound as a white solid.

1 H NMR (400MHz, CD 3 OD): 8 2.38 3H), 7.19 4H), 7.58 2H), 7.90 2H); LCMS: m/z ES 312 [M-H] Preparation 157: 4-[4-(4-Chlorophenyl)-5-methyl-4H-1,2,4-triazol-3-yl]benzoyl chloride N

CH

3

N

ci CI Oxalyl chloride (3 mL, 32 mmol) followed by N,N-dimethylformamide (5 drops) were added to a solution of the acid of preparation 156 (2 g, 6.4 mmol) in dichloromethane (200 mL) and the mixture was stirred at room temperature for 2 hours. The mixture was filtered, the filtrate was evaporated under reduced pressure and the residue was azeotroped with dichloromethane (3x200 mL) to afford the title compound as an orange oil, 2.01 g.

WO 2005/063754 PCT/IB2004/004059 -102- 'H NMR (400MHz, CDC13): 5 2.78 3H), 7.58 2H), 7.63 2H), 7.74 2H), 8.06 2H).

Preparation 158: 1-[4-(4-Chlorophenyl)-5-methyl-4H-1,2,4-triazol-3-yl]piperidine-4carboxylic acid N \CH 3 oN OH CI A solution of the ester of preparation 90 (4 g, 10.4 mmol) and 4N sodium hydroxide (13 mL, 52 mmol) in dioxan (20 mL) was stirred at room temperature for 2 hours. The mixture was partitioned between water and ethyl acetate and the phases were separated. The aqueous layer was acidified to pH 4 using 2N hydrochloric acid, the resulting precipitate was filtered off and washed with water. The solid was triturated with ether, filtered and dried in vacuo to afford the title compound as a white solid.

'H NMR (400MHz, CD 3 OD): 5 1.52-1.61 2H), 1.81 2H), 2.21 3H), 2.40 (m, 1H), 2.81 2H), 3.21-3.36 2H), 7.47 2H), 7.62 2H).

Preparation 159: 1-[4-(4-Chlorophenyl)-5-(2H-1,2,3-triazol-2-ylmethyl)-4H-1,2,4-triazol- 3-yl]piperidine-4-carboxylic acid

N-N

HO N N Cl The title compound was obtained as a white solid, from the ester of preparation 91, following a similar procedure to that described for preparation 158, except that 10 eq. of sodium hydroxide were used in the reaction.

'H NMR (400MHz, CD 3 0D): 5 1.48-1.60 2H), 1.81 2H), 2.40 1H), 2.82 (m, 2H), 3.32 2H), 5.64 2H), 7.30 2H), 7.50 2H), 7.58 2H); LCMS: m/z APCI' 388 [MH]- WO 2005/063754 PCT/IB2004/004059 -103- Preparation 160: 1-[4-(4-Chlorophenyl)-5-methyl-4H-1,2,4-triazol-3-yl]-4methylpiperidine-4-carboxylic acid

N

SCH

3 OH ci A mixture of the ester of preparation 92 (1.45 g, 4.0 mmol) and 4N sodium hydroxide solution (5 mL, 20 mmol) in dioxan (50 mL) was stirred under reflux for 16 hours. Tic analysis showed that starting material remained, so additional sodium hydroxide (4N, mL, 20 mmol) was added, and the reaction was heated under reflux for a further 18 hours. The cooled mixture was partitioned between ethyl acetate and water, and the layers were separated. The aqueous phase was acidified to pH 3.5 using 2N hydrochloric acid and extracted with ethyl acetate These combined organic extracts were dried over MgSO 4 and evaporated under reduced pressure. The product was triturated with ethyl acetate. The resulting solid was filtered off and dried to provide the title compound as a white solid, 800 mg.

1 H NMR (400MHz, CD30D): 5 1.18 3H), 1.38 2H), 1.99 2H), 2.21 3H), 2.92 2H), 3.16 2H), 7.49 2H), 7.63 2H). LCMS: m/zAPCI' 335 [MH]' Preparation 161: N-(4-Chlorophenyl)-2-(2H-1,2,3-triazol-2ylacetyl)hydrazinecarbothioamide I H

N

4-Chlorophenylisothiocyanate (8.58 g, 50.6 mmol) was added portionwise to a suspension of the hydrazide of preparation 18 (7.0 g, 50.6 mmol) in ethanol (200 mL) and the mixture was stirred at room temperature for 72 hours. The resulting precipitate was filtered off, washed with ether and dried to afford the title compound as a white solid, 14.5 g.

H NMR (400MHz, CD 3 OD): 8 5.30 2H), 7.36 2H), 7.44 2H), 7.78 2H).

WO 2005/063754 PCTfIB2004/004059- -104- Preparation 162: 4-(4-Chlorophenyl)-5-(2H-1,2,3-triazol-2-ylmethyl)-2,4-dihydro-3H- 1,2,4-triazole-3-thione

H

S

N\

N

N Cl

N

A solution of the compound of preparation 161 (14.5 g, 46.5 mmol) and 2M sodium hydroxide solution (232 mL, 465 mmol) in ethanol (36 mL) was stirred at 80°C for 18 hours. The cooled mixture was acidified to pH 9 using concentrated hydrochloric acid, then it was extracted with dichloromethane (6x250 mL). The combined organic solutions were evaporated under reduced pressure to afford the title compound as a white solid, g.

'H NMR (400MHz, CDC13): 5 5.54 2H), 7.05 2H), 7.42 2H), 7.58 2H).

Preparation 163: 2-{[4-(4-Chlorophenyl)-5-(methylthio)-4H-1,2,4-triazol-3-yl]methyl}-2H- 1,2,3-triazole

H,

s N Cl

N

Potassium tert-butoxide (2.9 g, 25.6 mmol) was added to a solution of the compound of preparation 162 (7.5 g, 25.6 mmol) in tetrahydrofuran (250 mL) and the suspension was stirred at room temperature for 30 minutes. Methyl p-toluenesulphonate (4.8 g, 25.7 mmol) was added and the mixture was heated under reflux for 45 minutes, then at room temperature for a further 2 hours. The mixture was diluted with dichloromethane (1000 mL), washed with saturated ammonium chloride solution (300 mL) and brine (300 mL) then it was dried over MgSO 4 and evaporated under reduced pressure. The crude material was purified by column chromatography on silica gel using dichloromethane:methanol (85:15) as eluant to provide the title compound, 4.9 g.

1 H NMR (400MHz, CDCI 3 6 2.70 3H), 5.64 2H), 7.02 2H), 7.41 2H), 7.54 2H). LCMS: m/z ES 329 [MNa]f WO 200n5/063754 PCT/IBT2004/n004059 -105- Preparation 164: 2-{[4-(4-Chlorophenyl)-5-(methylsulfonyl)-4H-1,2,4-triazol-3-yl]methyl}- 2H-1,2,3-triazole 0

H

3 C s .N\ 0 N N Meta-chloroperbenzoic acid (3.4 g, 19.56 mmol) was added to a solution of the compound of preparation 163 (1.5 g, 4.90 mmol) in dichloromethane (60 mL) and the reaction was stirred at room temperature for 18 hours. The mixture was diluted with dichloromethane, then washed with saturated sodium bicarbonate solution (300 mL) and brine (200 mL). The organic solution was dried over Na 2

SO

4 and concentrated under reduced pressure. The residual solid was washed with ethanol, then dried in vacuo to afford the title compound as a white solid, 1.40 g.

1H NMR (400MHz, CDCI 3 8 3.46 3H), 5.69 2H), 7.18 2H), 7.41 2H), 7.57 2H); LCMS: m/z ES 361 [MNa] Preparation 165: 4-Chloro-2-ethoxynitrobenzene

N*O

-0 cl Sodium ethoxide (21% in ethanol, 8.6 mL, 26 mmol) was added dropwise to a solution of 4-chloro-2-fluoronitrobenzene (3 g, 17.1 mmol) in ethanol (20 mL), and once addition was complete the reaction was stirred for a further hour. The mixture was concentrated under reduced pressure, the residue was diluted with ethyl acetate, and the solution was washed with water then brine. The solution was dried over MgS04 and evaporated under reduced pressure to afford the title compound as a solid, 3.45 g.

1 H NMR (400MHz, CDC13): 81.49 3H), 4.19 2H), 7.00 1H), 7.05 1H), 7.81 1H).

Preparation 166: 4-Chloro-2-ethoxyaniline pH 2 A mixture of the nitro compound of preparation 165 (3.30 g, 16.4 mmol), iron powder (2.7 g, 49 mmol) and calcium chloride (810 mg, 7.4 mmol) in water (5 mL) and ethanol WO 2005/063754 PCT/IB2004/004059 -106mL) was heated under reflux for 3.5 hours. The cooled mixture was filtered through Celite® and the filtrate was concentrated under reduced pressure. The residue was partitioned between water and ethyl acetate, the layers were separated and the organic phase was washed further with brine. The solution was dried over MgSO 4 and evaporated under reduced pressure. The crude product was purified by column chromatography on silica gel using an elution gradient of pentane;ethyl acetate (100:0 to 0:100) to afford the title compound as an oil, 2.4 g.

1 H NMR (400MHz, CDCl 3 6 1.42 3H), 402 2H), 6.61 1H), 6.76 2H).

Preparation 167: 1-(5-Chloro-2-nitrobenzyl)pyrrolidine ci

C-

Pyrrolidine (4 mL, 48.5 mmol) was added to a solution of 5-chloro-2-nitrobenzaldehyde (6 g, 32.2 mmol) in dichloromethane (150 mL) and the solution was stirred at room temperature for 30 minutes. The solution was then cooled in ice, and sodium triacetoxyborohydride (10.3 g, 48.5 mmol) was added portionwise. Once addition was complete, the reaction was stirred at room temperature for 4 hours. The reaction was washed with sodium carbonate solution, dried over MgSO 4 and evaporated under reduced pressure. The residual oil was purified by column chromatography on silica gel using ethyl acetate:pentane (86:14) to afford the title compound as a pale yellow solid, 6.3 g.

1 H NMR (400MHz, CDCI 3 5 1.82 4H), 2.58 2H), 3.98 2H), 7.37 1H), 7.80 1 7.87 1 LCMS: m/z APCl 241 [MH] Preparation 168: 4-Chloro-2-(pyrrolidin-1-ylmethyl)aniline

NH

2 cl A mixture of the compound of preparation 167 (6.2 g, 25.8 mmol) and Raney® Nickel (400 mg) in ethanol (200 mL) was hydrogenated at 40 psi and room temperature for 2 hours. The mixture was filtered through Arbocel® and the filtrate was evaporated under reduced pressure. The residue was purified by column chromatography on silica gel WO 2005/063754 PCT/IB2004/nnn40n59 -107using an elution gradient of dichloromethane:methanol:0.88 ammonia (95:5:0.5 to 90:10:1) to afford the title compound as a solid, 3.95 g.

IH NMR (400MHz, CDCI 3 8 1.78 4H), 2.48 2H), 3.59 2H), 4.65-4.90 (br s, 2H), 6.56 1H), 6.98 1H), 7.00 1H). LCMS: m/zAPCI' 211 [MH] Preparation 169: 4-{[4-(4-Chlorophenyl)-5-piperidin-4-yl-4H-1,2,4-triazol-3yl]methyl}morpholine

NHN

N 0 ci

CI

A solution of the compound of preparation 101 (8.6 g, 18.6 mmol) in dioxan (50 mL) and 4M hydrochloric acid in dioxan (30 mL) was stirred at room temperature for 18 hours. The solution was evaporated under reduced pressure and the residue was partitioned between 2N sodium hydroxide solution and ethyl acetate. The resulting solid was filtered off and dried to afford the title compound as a white solid, 1.2 g. The filtrate was separated, the aqueous layer was extracted with dichloromethane and the combined organic solutions were dried over MgSO 4 and evaporated under reduced pressure to afford additional product, 1.11 g.

LCMS: m/zAPCIl 362 [MH] Preparation 170: tert-Butyl 4-{[2-(2H-1,2,3-triazol-2-ylacetyl)hydrazino] carbonyl}piperidine-1 -carboxylate

H

3 c H N 0 A suspension of N-Boc-isonipecotic acid (30.0 g, 130.8 mmol) and the hydrazide of preparation 18 (18.5 g, 130.8 mmol) in dichloromethane (150 mL) was cooled in an ice bath under N 2 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (25.6 g, 133.5 mmol) was added via an addition funnel, and the funnel was washed with additional dichloromethane (10 mL). The resulting solution was warmed to ambient temperature. Once the reaction was complete, iso-propanol (150 mL) was added and the homogeneous solution was concentrated in vacuo to approx 165 mL, heated to approx. 70 0 C, and allowed to cool to ambient temperature with stirring. The resulting WO 200n5/063754 PCT/IBT2004/n004059 -108thick white slurry was filtered in vacuo, washing with iso-propanol (15 mL and 30 mL) and dried in vacuo at 50°C to give the title compound as a white solid, 25.3 g The liquors from the filtration were concentrated under reduced pressure to low volume, the resulting syrup was treated with water (50 mL) and vigorously stirred to give a thick slurry within two minutes. After overnight granulation, the slurry was filtered (rapid filtration), the residues washed with water (2 x 10 mL) and dried in vacuo at 500C to give additional product, 8.5 g H NMR (CDC1) 8: 1.42 9H), 1.50-1.85 4H), 2.41 1H), 2.73 2H), 4.12 (d, 2H), 5.21 2H), 7.70 2H), 9.15 1H), 9.75 1H).

Examples 1 to 162: N"

N\

Me

N

z l 0 Cl Examples 1 to 162 illustrated below were synthesised as a library. The following solutions were used: carboxylic acid, ZCO 2 H, was dissolved in dimethylacetamide (anhydrous) plus 3 triethylamine at 0.2M concentration.

the amine of preparation 2a was dissolved in DMA (anhydrous) plus 3.75% triethylamine at 0.2M concentration.

HBTU was dissolved in DMA (anhydrous) at 0.2M concentration.

Gentle sonication, in a warm water bath (temp was used to dissolve the monomers where necessary.) Experimental Procedure: The reaction Scale was between 20 and 30 micromoles per well (experimental details shown for 20 pmole reaction, scale can be adjusted accordingly within this range).

Reactions were performed in a polypropylene 96 well plate.

a) Amine solutions (0.1ml, 20 pmoles, 1 eq.) were added to the wells b) Carboxylic acid solutions (0.15ml, 30,umoles, 1.5 eq.) were added to the wells c) HBTU Solution (0.15 ml, 30 pmoles, 1.5 eq.) was added to each well d) The polypropylene 96 well plate was sealed with a PTFE and Rubber gasket and clamped between a pair of metal plates.

WO 2005/063754 PCT/IB2004/004059 -109e) The plate was heated in an oven for 6 h at 60 0 C and then left to cool down in the oven overnight.

f) When cool, the plate was unclamped and placed in a Genevac to remove the solvent.

g) The samples were re-dissolved in DMSO/water (500/11) and any particulate matter was removed by filtration.

h) Purification was carried out by RP-HPLC.

HPLC purification conditions: Column: Phenomenex Luna C18, 10um, 150 x 10 mm id Temperature: ambient Eluent A: 0.05% Diethylamine in water Eluent B: Acetonitrile Samples dissolved in: 90% Dimethylsulphoxide in water.

Sample loaded using Gilson Autosampler with Injection Volume of 550pl Gilson LC Pump Initial Conditions: Solvents A% 80.0 B% 20.0 Flow (ml/min) 8.000 Gilson LC Pump Gradient Timetable: Time A% B% Flow (ml/min) 0.00 80.0 20.0 8.000 0.20 80.0 20.0 8.000 7.00 5.0 95.0 8.000 9.00 5.0 95.0 8.000 9.10 80.0 20.0 8.000 10.5080.0 20.0 8.000 Gilson 119 uv detector monitoring at 254nm: Collector set at 225nm Dual sensitivity 200 Peak sensitivity Peak width 0.3 min.

WO 2005/063754 PCT/IB2004/004059 -110- HPLC analysis conditions and Mass Spectrometer details: Column: Phenomenex Luna C18, 5um, 30 x 4.6 mm id.

Eluent A: 0.05% Diethylamine in water Eluent B: Acetonitrile Samples dissolved in: 90% Dimethylsulphoxide in water Sample loaded using Gilson Quad Z with Injection Volume of Waters 1525 binary LC Pump Initial Conditions: Solvents A% 95.0 B% Flow (ml/min) 2.5 (per channel) Temperature ambient LC Pump Gradient Timetable: The gradient Timetable contains 4 entries, which are: Time A% B% Flow 0.00 95.0 5.0 2.500 3.00 5.0 95.0 2.500 3.50 95.0 5.0 2.500 Total run time 4.50 mins Detection: Waters 2488 dual wavelength detector UV1 (nm) 225 UV2 (nm) 255 and ELSD: PolymerLabs, Temperature: 75 0 C, Gas flow: 1.2 bar Mass Spectrometer: Waters ZQ 2000 4 way MUX, ES+ Cone voltage: 26 v Capillary: 3.85 kv ES- Cone voltage:-30 v Capillary:-3.00 kv Desolvation gas: 800 I/min Source Temp: 300 0

C.

Scan range 160-1000 Da WO 2005/063754 WO 205/03754PCT/1B2004/004059 -111- Ex. Z Mass ion of PCRt No. product tie(ns found 1 2-methoxy-pyridin-3-yi 412.15 1.55 2 3-trifluoromethyl-phenyl 449.13 2 3 2-methoxy-phenyl 411.15 1.35 4 2-methanesufonyl-phenyl 459.12 1.6 3-methanesulfonyi-phenyi 459.12 1.55 6 phenyl 381.14 1.72 7 3-methoxy-phenyl 411.15 1.67 8 4-fluoro-phenyl 399.13 1.74 9 2-Chloro-phenyl 415.1 1.8 4-Chloro-phenyl 415.1 1.92 11 4-methanesulfonyl-phenyl 459.12 1.49 12 2,4-dichloro-phenyl 449.06 1.99 13 3,4-dichloro-phenyl 449.06 2.04 14 2,5-dichloro-phenyl 449.06 1.99 4-ethoxy-phenyl 425.17 1.77 16 4-methylsulfanyl-phenyl 427.13 1.85 17 4-Chloro-2-methoxy-phenyl 445.11 1.89 18 2-ethoxy-phenyl 425.17 1.84 19 isoquinolin-1-y 432.15 1.6 2,6-dimethyi-phenyl 409.17 1.82 21 quinolin-2-yi 432.15 1.74 22 quinolin-4-yI 432.15 1.6 23 quinolin-3-yi 432.15 1.57 24 2-Chloro-6-fluoro-phenyl 433.09 1.54 2,3-dichloro-phenyl 449.06 1.95 26 2,5-difluoro-phenyl 417.12 1.82 27 2,5-dimethoxy-phenyl 441.16 1.55 28 2,3-difluoro-phenyl 417.12 1.8 29 2,4-difluoro-phenyl 417.12 1.8 3,4-difluoro-phenyl 417.12 1.85 31 4-isopropyl-phenyl 423.19 2 WO 2005/063754 WO 205103754PCTi1B2004/004059 -112- 32 6-methyl-pyridin-3-yl 396.15 1.45 33 4-fluoro-naphthalen-1 -y 449.15 2 34 3,5-difluoro-phenyl 417.12 1.87 3-aminosulfonyl-4-chloro-phenyl 494.07 36 1 H-Benzoimidazol-5-yi 421.15 1 .37 37 2-Chloro-4-fluoro-phenyl 433.09 1 38 4-trifluoromethoxy-phenyl 465.12 2.07 39 1 H-Benzotriazol-5-yl 422.14 1.34 4-methoxy-quinolin-2-y 462.16 1.82 41 2-fl uoro-4-trifluoromethyl-pheny 467.12 2.04 42 2,3,6-trifluoro-phenyl 435.11 1.87 43 2-methyl-pyridin-3-yi 396.15 1.32 44 2,4,5-trifluoro-phenyl 435.11 1.85 4-propyl-phenyl 423.19 2.15 46 2-fluoro-3-trifluoromethyl-pheny 467.12 1.92 47 3-fluoro-2-methyl-phenyl 413.15 1.82 48 2,4-dichloro-5-fluoro-phenyl 467.05 2.05 49 3-fluoro-4-methoxy-pheny 429.14 1.8 4-isopropoxy-phenyl 439.18 1.89 51 4-propoxy-phenyl 439.18 2.02 52 3-Chloro-4-fluoro-phenyl 433.09 1.95 53 2,6-dimethoxy-pyridin-3-yl 442.16 1.7 54 2-fluoro-5-methyl-pheny 413.15 1.85 3-fluoro-5-trifluoromethyi-pheny 467.12 2.09 56 4-difluoromethoxy-phenyl 447.13 1.79 57 Biphenyl-2-yl 457.17 2.02 58 4-aminosulfonyl-phenyl 460.11 1.45 59 3-Chloro-phenyl 415.1 1.9 4-cyano-phenyl 406.14 1.6 61 2,3-dirnethoxy-phenyl 441.16 1.68 62 2,6-dimethoxy-phenyl 441.16 1.68 63 3,5-dimethoxy-phenyl 441.16 1.82 64 3-fluoro-4-methyl-phenyl 413.15 1.8 3-fluoro-phenyl 399.13 1.75 WO 2005/063754 WO 205/03754PCT/11B2004/004059 -113- 66 3-methoxy-4-methyl-phenyl 425.17 1.9 67 naphthalen-1 -yi 431.16 1.95 68 pyridin-3-yI 382.14 1.3 69 pyridin-2-yi 382.14 1.42 6-methyl-pyridin-2-yl 396.15 1.52 71 m-tolyl 395.16 1.85 72 p-tolyl 395.16 1.74 73 4-fluoro-3-methoxy-phenyl 429.14 1.79 74 3-Chioro-4-methyl-phenyl 429.12 2 5-Chloro-2-methyl-phenyl 429.12 1.97 76 3-Chloro-2,6-dimethoxy-phenyl 475.12 1.82 77 3-Chloro-2-fluoro-phenyi 433.09 1.89 78 2-phenoxy-pyridin-3-yI 474.16 1.82 79 2-trifluoromethoxy-phenyl 465.12 1.99 3-ethoxy-phenyl 425.17 1.79 81 3-Chloro-4-methoxy-phenyl 445.11 1.85 82 3,5-dimethoxy-4-methyl-phenyl 455.18 1.99 83 4-Chloro-3-methyl-phenyl 429.12 2.05 84 2-Chloro-3,4-dimethoxy-phenyl 475.12 1.72 3-cyclopentyloxy-4-methoxy-phenyI 495.21 2 86 4-methoxy-3-propoxy-phenyl 469.19 1.89 87 3-isopropoxy-4-methoxy-phenyl 469.19 1.85 88 3-Butoxy-4-methoxy-phenyl 483.21 1.95 89 4-trifluoromethyl-pyridin-3-y 450.12 1.65 6-(2,2,2-trifluoro-ethoxy)-pyridin-3-yI 480.13 1.95 91 2-(4-fluoro-phenoxy)-pyridin-3-yI 492.15 1.9 92 2-oh Ioro-3-trifluoromethyl-phenyl 483.09 1.97 93 2-difluoromethoxy-phenyl 447.13 1.82 94 3-difluoromethoxy-phenyl 447.13 1.89 6-trifluoromethyl-pyridin-3-yl 450.12 1.84 96 2-methyl-[1 ,8]naphthyridin-3-yl 447.16 1.32 97 2-mathyl-[1,6]naphthyridin-3-y 447.16 1.42 98 2,3-dihydro-benzofuran-7-yl 423.15 1.57 99 2-Chloro-3-methyl-phenyl 429.12 1.92 WO 2005/063754 WO 205/03754PCTIIB2004/004059 -114- 4-methoxy-3-methyl-phenyl 425.17 1.92 1 101 2-ethoxy-pyrid in-3-yI 426.16 1.6 102 2-ethoxy-naphthalen-1 -yi 475.18 2.02 103 3-(dimethylamino)sulfonyl-phenyl 488.14 1.72 104 2-propoxy-pyridin-3-yl 440.18 1.84 105 2-(4-Chloro-phenoxy)-pyrid in-3-yI 508.12 1 .93 106 2-methyl-I H-benzoimidazol-5-yi 435.16 1.4 107 6-hydroxy-pyridin-2-yi 398.13 1.32 108 2-(5-methyl-[1l,2,4lloxadiazol-3-yl)-pyrid in-4-yI 464.15 1 109 4-(5-methyl-[1 ,2,4]oxadiazol-3-yI)-phenyl 463.16 1 .67 110 4-(5-ethyl-[1 ,2,4]oxadiazol-3-yI)-pheny 477.17 1 .92 111 3-(5-methyl-[1 ,2,4]oxadiazol-3-yI)-pheny 463.16 1 .68 112 3-(5-ethyl-[1 ,2,4]oxadiazol-3-yi)-phenyl 477.17 1.9 13 2-hydroxy-pyridin-4-yI 398.13 1.25 114 2-Benzyl-phenyl 471.19 2.17 115 3,5-dichioro-phenyl 449.06 2 116 3-Chloro-2-methyl-phenyl 429.12 1.93 17 2,3-dihydro-benzofuran-5-yI 423.15 1.74 118 2-(3-methyl-[1 ,2 ,4]oxadiazol-5-yI)-pyridin-4-yI 464.15 1 .49 119 3-hydroxy-2-methyl-phenyl 411.15 1 .54 120 2-fluoro-5-trifluoromethyl-pheny 467.12 2.02 121 4-methoxy-2-methyl-phenyl 425.17 1.82 122 3-methoxy-2-methyl-phenyi 425.17 1.82 123 2-hydroxy-5-methyl-phenyl 411.15 1 .68 124 3,5-dichloro-4-hydroxy-phenyl 465.06 1.57 125 2-hydroxy-3-isopropyl-phenyl 439.18 2.93 126 1 H-indol-6-yl 420.15 1.75 127 3-hydroxy-phenyl 397.14 1.6 128 3-methoxy-naphthalen-2-y 461.17 1.9 129 3-hydroxy-4-methoxy-phenyl 427.15 1.54 130 4-Chloro-2-hydroxy-phenyl 431.1 1.77 131 3,4-dimethoxy-2-methyl-phenyl 455.18 1.79 132 6-(acetylamino)-pyridin-3-yl 439.16 1.35 133 2,6-dimethoxy-4-methyl-phenyl 455.18 1.8 WO 2005/063754 WO 205/03754PCTfIB2004/004059 -115- 134 2-Benzyloxy-phenyl 487.18 2.07 135 6-methoxy-quinolin-2-yi 462.16 1.82 136 quinoxalin-6-yi 433.15 1.42 137 1 ,2-dimethyl-1 H-benzoimidazol-5-yl 449.18 1 .49 138 1 H-indol-5-yI 420.15 1.7 139 2-(3,5-dimethy-1 H-pyrazol-4-yi)-5-methoxy- 505.2 1.6 phenyl 140 8-methyl-2-oxo-1 ,2-dihydroquinolin-6-yI 462.16 1.45 141 3-aminosulfonyl-phenyl 460.11 142 4-(3-methyl-6-oxo-3-piperidinyl)-pheny 492.21 1.54 143 2-(2-methoxy-ethoxy)-phenyl 455.18 1.62 144 2-hydroxy-4-methyl-phenyl 411.15 1.68 145 3-Chloro-4-hydroxy-phenyl 431.1 1.64 146 3-hydroxy-4-methyl-phenyl 411.15 1.75 147 3-methoxy-5-(methyisu Ifonyl)amino-pheny 504.14 1.57 148 2-{I[(2,2-dimethypropyI)amino]carbony}-phenyI 494.22 1.85 149 5-acetyl-2-ethoxypyridii-3-y 468.17 1.7 150 2-(2-methoxy-ethoxy)-pyridi n-3-yI 456.17 1.62 151 isoquinolin-4-yI 432.15 1.52 152 2-ethoxy-3-methoxy-phenyl 455.18 1.8 153 R)-1 -(acetylamino)ethyll-phenyl 466.19 1.47 154 4-pyri mid in-4-yI-phe nyl 459.16 1.6 155 3-methyl-2-propoxy-phenyl 453.2 2 156 4-ethoxy-pyridin-3-yI 426.16 157 2-chloro-4-methyisulfonylamino-phenyl 508.09 1.64 158 2-ethoxy-5-methanesu Ifonyl-phenyl 503.14 1.68 159 4-hydroxy-2-(2,2,2-trifluoro-ethoxy)-pheny 495.13 1.65 160 4-hydroxy-2-methoxy-phenyl 427.15 1.52 161 4-cyano-pyridin-2-yI 407.13 1.55 162 2-pyridin-4-yi-3H-benzoimidazol-5-yI 498.17 WO 2005/063754 PCT/IB2004/004059 -116- Example 163: (3-Chloro-phenyl)-{4-[4-(4-chloro-phenyl)-5-[1,2,3]triazol-2-ylmethyl-4H- [1,2,4]triazol-3-yl]-piperidin-1 -yl}-methanone

N

A mixture of the compound from preparation 10 (202mg, 0.54mmol), 4-chloroaniline (140mg, 1.lmmol) and trifluoroacetic acid 4 2 1l, 0.54mmol) in toluene (2ml) was heated at 170°C for 20 minutes under microwave radiation. The cooled mixture was diluted with ethyl acetate, washed with 1N sodium hydroxide solution and brine, then dried over Na 2

SO

4 and concentrated under reduced pressure. The product was purified by column chromatography on silica gel using dichloromethane:methanol:0.88 ammonia (100:0:0 to 90:10:1) to afford the title compound, (234mg).

1 H NMR (400MHz, CD 3 OD): 8 1.80-1.97 4H), 2.86 2H), 3.08 1H), 3.70 (m, 1H), 4.58 1H), 5.72 2H), 7.26 2H), 7.32 1H), 7.41-7.54 5H), 7.59 (s, 2H).

LRMS m/z (APCI*) 482 [MH]' Example 164: (4-Chloro-phenyl)-{4-[4-(4-chloro-phenyl)-5-[1,2,3]triazol-2-ylmethyl-4H- [1,2,4]triazol-3-yl]-piperidin-1-yl}-methanone c

N-

N

o Cl 4-Chlorobenzoyl chloride (49p1, 0.38mmol) was added to a mixture of the compound from preparation 12a (120mg, 0.35mmol) and N-methyl morpholine (77A1, 0.70mmol) in dichloromethane (2ml), then the mixture was stirred at room temperature for 2 hours.

The reaction was diluted with dichloromethane, washed with 1N sodium hydroxide solution and the aqueous wash re-extracted with dichloromethane. The combined organic solutions were evaporated under reduced pressure to give an oil. This was purified by column chromatography on silica gel using dichloromethane:methanol:0.88 ammonia (90:10:1) to afford the title compound as a white solid, (160mg).

WO 2005/063754 PCT/IB2004/004059 -117- 1 H NMR (400MHz, DMSO-d 6 8 1.60-1.82 4H), 2.70-3.04 3H), 3.54 1H), 4.33 1H), 5.66 2H), 7.34 2H), 7.39 2H), 7.48 2H), 7.57 2H), 7.64 2H); LRMS m/z (APCI 482 [MH]' Example 165a: {4-[4-(4-Chloro-phenyl)-5-[1,2,3]triazol-2-ylmethyl-4H-[1,2,4]triazol-3-yl]piperidin-1-yl}-(3,5-difluoro-phenyl)-methanone

NN

F 0 Cl The title compound was obtained in 92% yield from the compound from preparation 12a and 2,4-difluorobenzoyl chloride, following the procedure described in example 164.

1 H NMR (400MHz, CDsOD): 8 1.80-1.98 4H), 2.84 2H), 3.09 1H), 3.65 (m, 1H), 4.58 1H), 5.72 2H), 7.05 3H), 7.24 2H), 7.57 2H), 7.59 2H).

LRMS m/z (APCl') 484 [MH]" Example 165b: {4-[4-(4-Chloro-phenyl)-5-[1,2,3]triazol-2-ylmethyl-4H-[1,2,4]triazol-3-yl]piperidin-1-yl}-(3,5-difluoro-phenyl)-methanone Triethylamine (3.2ml, 23.0mmol) was added to a slurry of the bis salt from preparation 12b (4.89g, 7.12mmol) in dichloromethane (25ml) giving a pale yellow solution. The solution was cooled in an ice-bath and then 3,5-difluorobenzoyl chloride (0.95ml, 8.09mmol) was added. The reaction was stirred for 30 minutes, and then water was added. After a further 20 minutes of stirring, the phases were separated and the organic phase was washed successively with aqueous citric acid, water, aqueous sodium hydrogen carbonate and half-saturated brine. The clear dichloromethane solution was then dried over magnesium sulphate and concentrated to give a white foam. Recrystallisation from ethyl acetate gave the title compound as a white solid, (2.69g), identical to material prepared as described in Example 165a.

WO 2005/063754 PCT/IB2004/004059 -118- Examples 166 to 167: The appropriate acid chloride (1.2 eq.) was added to a solution of the amine of preparation 2 (1 eq.) and N-methylmorpholine (1.5 eq.) in dichloromethane mLmmor 1 and the reaction was stirred at room temperature for 4 hours. Tris-(2aminoethyl)amine polystyrene (3.85 mmol/g) was added and the reaction was stirred for a further hour. Saturated ammonium chloride solution was added, the mixture was then stirred for 20 minutes and the layers were separated using a hydrophobic membrane.

The organic phase was washed with saturated sodium bicarbonate solution, the layers were separated and the organic solution was evaporated under reduced pressure to provide the title compounds.

Ex Z Yield Data No 166 Neopentyl 39 1 H NMR (400MHz, CDC13): 8 1.00 9H), 1.71 2H), 1.82 1H), 1.98 1H), 2.20 2H), 2.24 3H), 2.57 1H), 2.65 1H), 3.00 1H), 3.98 1H), 4.57 1H), 7.20 2H), 7.57 2H). LCMS: m/z APCl' 375 [MH]' 167 Cvclopropyl 39 1 H NMR (400MHz, CDCI 3 80.73 2H), 0.94 2H), 1.70 3H), 1.88 1H), 2.02 1H), 2.22 3H), 2.58-2.75 2H), 3.08 1H), 4.23 1H), 4.44 (m, 1H), 7.20 2H), 7.58 2H). LCMS: m/zAPCI 347

[MH]

Examples 168 to 173: A mixture of the appropriate amine, or amine salt, selected from preparations 12a, 100, 118, 119, 143, and 152 (1 the appropriate acid chloride (W-PhCOCI) (1.2 to 1.4 WO 2005/063754 PCIB2001/004059 -119eq.) and N-ethyldiisopropylamine (4 eq.) in dlichloromethane (16 mLmmor- 1 was stirred at room temperature for 2 hours. Tris-(2-aminoethyl)amine polystyrene was then added and the mixture was stirred for another hour. The mixture was then washed with 1IN sodium hydroxide solution, the aqueous solution was extracted with dichioromethane (2x) and the combined organic solutions were concentrated under reduced pressure.

The crude products were purified by column chromatography on silica gel using ethyl acetate: methanol: 0.88 ammonia (90:10:1) as eluant, to afford the title compounds.

Ex Data No 168 W 3-F, 4-CH 3 Y 4-Cl; Y' 2-Cl; X =CH 3 'H NMR (400MHz, CDC 3 8 1.77-1.99 (in, 4H), 2.19 3H), 2.26 3H), 2.59 (in, 1 2.84-3.02 (in, 2H), 3.83 (mn, 1 4.55 (in, 1 7.02 (in, 2H), 7.18-7.28 (mn, 2H), 7.48 (mn, 1 7.66 1 LCMS: m/z APCI 4 447 [MNa]+ 1i697 W 3-F7, 4-CH,; Y 4-Cl; 2-F; X =CH 3 'H NMVR (400MHz, CDC1 3 51.75-2.00 (in, 4H), 2.24 (mn, 6H), 2.63 (in, 1H), 2.92 (in, 2H), 3.81 (in, 1 4.56 (mn, 1IH), 7.02 (mn, 2H), 7.19 (in, 1 7.40 (in, 3H). LCMS:,m/zAPCI+431 [MH]+ 170 W 3,5-d i-Cl; Y 4-Cl; Y' 2-OCH 3 X CH 3 1 H NMR (400MHz, CD 3 OD): 3 1.70-2.00 (in, 4H), 2.17 3H), 2.72-2.92 (in, 2H), 3.1 (mn, 1 3.62 (in, 1 3.84 (in, 3H), 4.56 (in, 1 7.20 (mn, 1 7.39 (mn, 4H), 7.58 1 LCMS: m/z APCI' 480 [MH]' Th~W 2-F, 3-Cl; Y 4-Cl; Y' H; X CH 2

OCH

2

CH

3 1 H NMR (400MHz, CDCI 3 5 1.08 3H), 1.64-1.81 (in, 2H), 1.84-2.01 (mn, 2H), 2.79 (in, 1 2.85-3.17 (in, 2H), 3.41 2H), 3.62 (in, 1 4.41 2H), 4.62 (mn, 1 7.17 (in, 1 7.23 (in, 3H), 7.43 (in, 1 7.58 LCMS: m/z APCI 477 [Mf- W =W4-C; Y =4-CI; H; X= CH 2

CF

3 1 H NMR (400MHz, CDC1 3 3 1.81 (in, 2H), 1.98 (in, 2H), 2.70 (in, 1H), 2.80- 3.02 (in, 3.44 2H), 3.81 (in, 1 4.59 (in, 1 7.19 7.38 (in, 4H), 7.60 LCMS: m/zAPCI+ 483 [MI+ 17 W- 2-OCF Y 4-Cl; Y H; X [1 ,2,3]-triazol-2-ylmethyl 1 H NMR (400MHz, CDC 3 5 1.76 (in, 1 1.79-2.02 (in, 3H), 2.68 (in, 1 H), 2.82-3.02 (in, 2H), 3.58 (in, 1 4.59 (mn, 1 5.62 2H), 6.99 (in, 2H), 7.22-7.42 (in, 6H), 7.50 LCMS: m/zAPCl+ 532 [MH]" A=4 eq. of triethylamine were used, and the crude product was not treated with polymer supported amine.

WO 2005/063754 PCTfIB2004/004059 -120- B 10 eq. of polymer supported N-ethyldiisopropylamine was used in place of Nethyldfisopropylamine.

Examples 174 to 187: The appropriate acid chloride (W-PhCOCI) (1.0 to 1.5 eq.) was added to a solution of the appropriate amine hydrochloride, or amine, selected from preparations 120 to 121, 132, 134 to 135, 137, 139 to 142, 151, 153 to 154, and 169 (1 and triethylamine (1.2 to 5 eq.) in dichloromethane (10 to 25 mLmmol- 1 The reaction was stirred at room temperature for 18 hours. The mixture was then diluted with dichloromethane, it was washed with saturated sodium carbonate solution, followed by ammonium chloride solution, and then it was concentrated under reduced pressure. The crude products were purified by column chromatography on silica gel using dichloromethane:methanol (100:0 to 90:10) as eluant to afford the title compounds.

Ex No Data SW 3-Cl; Y 4-Cl; Y' 2-CH 3 X Cl- 3 'H NMR (400MHz, CDCI 3 861.65-2.02 (in, 7H), 2.18 3H), 2.55 (mn, 1IH), 2.78-3.01 (in, 2H), 3.79 (in, 1 4.58 (mn, 1 7.03 (in, 1 7.20-7.39 (mn, 7.41 1IH). LCMS: m/z APCI+ 451 [MNa]+ 175'r W =3,5-di-CI; Y =4-Cl; H; X CH 2

OCH

3 1 H NMR (400MHz, CD 3 OD): 8 1.81-1.98 (in, 4H), 2.86 (in, 2H), 3.12 (in, 1 3.20 3H), 3.64 (in, I1H), 4.38 2H), 4.58 (mn, 1 7.40 2H), 7.46 7.58 1 7.62 LOMS: m/z APC 479, 481 [MH] W 4-Cl; Y 4-Cl; Y' H; X CH 2

OCF

3 1 H NMR (400MHz, CDCI 3 8 1.81 (in, 2H), 1.98 (in, 2H), 2.78 (in, 1H), 2.96 (in, 2H), 3.75-3.90 (mn, I 4.40-4.60 (in, 1IH), 4.97 2H), 7.21 (in, 2H), 7.37 (mn, 7.59 LCMS: m/z APCI*' 499 7-7' W 3,5-di-F; Y 4-Cl; Y' H; X CH 2

OCH

2

CF

3 1 H NMR (400MHz, CDCI 3 8 1.80-2.02 (in, 4H), 2.79 (in, 1 2.83-3.05 (in, 2H), 3.80 (in, 4.58 (in, 3H), 6.85 (in, 3H), 7.22 2H), 7.57 (d, 2H). LCMS: m/z APCl+ 515 [MH]+ WO 2005/063754 WO 205103754PCfTIB2004I004059 -12 1- 178 W 3-Cl; Y 4-Cl; Y' H; X (2-oxopyrrolidin-1 -yI)methyl; 'H NMR (400MHz, CDCI 3 8 1 .78-2.00 (in, 6H), 2.22 2H), 2.75 (in, 1 H), 2.97 (in, 2H), 3.48 2H), 3.80 (in, 1 4.42 2H), 4.58 (in, 1 7.00 2H), 7.23 1 7.38 (in, 3H), 7.58 2H). LCMS: m/z APCI+ 499, 501 [MH]- 19 W 3,5-di-CI; Y 4-Cl; Y' H; X =morpholin-4-ylmethyl; 1 H NMR (400MHz, CDCI 3 8 1.78-2.02 (in, 4H), 2.40 (in, 4H), 2.78 (in, 1 2.78-3.04 (in, 2H), 3.41 2H), 3.58 (mn, 4H), 3.78 (in, 1 4.58 (in, 1 7.23 (in, 5H), 7.56 2H). LCMS: m/z APCl+ 534 180 W 3-F; Y 4-Cl; Y' H; X I1H-tetrazol-1 -ylmethyl; 'H NMR (400MHz, CDCI 3 6 1.60-1.83 (in, 4H), 2.60-2.78 (in, 2H), 3.00 (in, 1 3.90 (in, 1 4.50 (in, 1 5.58 2H), 6.98 (mn, 2H), 7.50 (in, 2H), 7.29 (in, 1 7.60 2H), 8.79 1 LOMS: m/z ES+ 481, 483

[MH]-

181 W 3-Cl; Y 4-Cl; H; X =2-methyl-iinidazo-3-ylmethyl; 'HNMR (400MHz, CDCI 3 6 1.77-1.83 (in, 2H), 1.89-2.00 (in, 2H), 2.14 (s, 3H), 2.64 (mn, 2H), 2.94 (in, 1 3.82 (mn, I1H), 4.58 (mn, 1IH), 5.08 2H), 6.60 I1H), 6.96 (in, 3H), 7.24 (mn, 1lH), 7.32-7.40 (mn, 3H), 7.58 2H).

LCMS: m/z APCI 4 495, 497 [MH] 182 W 3-Cl; Y 4-Cl; H; X 3-inethyl-[1 ,2,4joxadiazol-5-ylmethy 1 H NMR (400MHz, CDCI 3 8 1 .80 (mn, 2H), 1.98 (in, 2H), 2.30 3H), 2.76 (in, 1 2.95 (mn, 2H), 3.80 (in, 1IH), 4.22 2H), 4.58 (in, 1IH), 7.19 (d, 2H), 7.24 1 7.37 (mn, 3H), 7.52 2H). LCMS: m/z APCI" 497, 499

[MH]+

183 W 3,5-di-F; Y =4-Cl; H; X [1 ,2,4]-triazol-1-ylmethyl 'HNMR (400MHz, CDCI 3 6 1.82 (mn, 2H), 2.00 (in, 2H), 2.75 (mn, 1 H), 2.80-3.08 (in, 2H), 3.80 (in, 1IH), 4.58 (in, I1H), 5.40 2H), 6.89 (in, 3H), 7.15 (in, 2H), 7.58 2H), 7.82 1 8.04 1 LCMS: m/z APC+ 484, 486 [MH]- -T8 W 2-F, 3-Cl; Y 4-Cl; Y' H; X pyri mid in-2-yloxymethyl 'HNMR (400MHz, CDC1 3 8 1.75 (in, 2H), 1.97 (in, 2H), 2.81 (in, 1IH), 2.88-3.15 (mn, 2H), 3.62 (mn, 1 4.62 (mn, 1 5.43 2H), 6.98 (in, 1IH), 7.16 (in, 1 7.25 (in, 1IH), 7.36 2H), 7.44 (in, 3H), 8.44 2H).

LCMS: m/z APCI+ 527 WO 2005/063754 PCT/lIB2004/004059 -122- 185 W 2-F, 3-Cl; Y 4-Cl; H; X 2-pyridin-2-yl-ethyl 'HNMVR (400MHz, GDCI 3 8 1 .58-1.98 (in, 4H), 2.75 (in, 1 2.90-3.00 (in, 2H), 3.04-3.18 (in, 2H), 3.42 (in, 2H), 3.61 (in, 1 4.60 1 7.10- 7.27 (mn, 6H), 7.42 (in, 1 7.56 2H), 7.82 (in, 1 8.48 1 H).

LCMS: m/zAPCI+ 524 [MH]+ 186 W 3-Cl; Y 4-Cl; Y' H; X 2-morpholin-4-ylethyl 'H NMR (400MHz, CDCI 3 8 1.80 (in, 2H), 1.97 (in, 2H), 2.40 (in, 4H-), 2.64-3.02 (in, 7H), 3.59-3.90 (in, 5H), 4.58 (in, 1 7.19 2H), 7.24 (in, 7.36 (mn, 2H), 7.58 2H). LCMVS: mn/zAPCl+ 514 187 W 5-Cl, 2-F; Y 4-Cl; Y' H; X 2-(3,5-dimethyl-isoxazol-4-yl)-ethyl; 'H NMR (400MHz, CDCI 3 8 1.75-1.98 (in, 7H), 2.04 3H), 2.63-2.80 (in, 2.86-3.08 (in, 2H), 3.62 (mn, 1 4.59 (in, 1 6.75 (in, 2H), 7.01 (in, 1IH), 7.37 (in, 2H), 7.57 2H). LOMS: m/z APCI+ 542, 544 [MH]" A =ethyl acetate:methano:O.88 ammonia was used as the column eluant.

B =2 eq N-methylmorpholine was used instead of triethylamine.

C =3 equivalents of N-methylmorpholine were used in place of triethylamine.

Example 188: 4-[4-(4-Ch lorophenyl)-5-( 1 l--iimid azol- 1 -yl methyl)-4H-1, ,2,4-triazol-3-y]-1 (3,3-diinethylbutanoyl)piperidine

~CH,

HC CH, 0 ci The title compound was obtained as a white solid, from the compound of preparation 138 and isovaleryl chloride, following the procedure described for examples 174 to 187.

1 H NMVR (400MHz, CDC 3 5 1.-01 9H), 1.70-1.85 (mn, 2H), 1.98 (mn, 3H), 2.22 (mn, 2H), 2.55-2.66 (in, 2H), 3.00 (in, 1 4.00 (mn, 1 4.59 (mn, 1 5.18 2H), 6.60 1 H), 6.90 (in, 2H), 7.00 1 7.20 1 7.52 (mn, 2H); LCMS: m/z APC+ 441 [MH]+ WO 2005/063754 PCT/IB2004/004059 -123- Examples 189 to 198: O "A .N The appropriate acid chloride, ZCOCI, (1.0 eq.) was added to a solution of the appropriate amine selected from those of preparations 122 to 131 (1 and triethylamine (1.1 eq.) in dichloromethane (4 mLmmol"). The reaction was stirred at room temperature for 1 hour. It was then diluted with water, stirred for 5 minutes, and then filtered through a phase separation cartridge. The organic solution was concentrated under reduced pressure and the crude product was purified by column chromatography on silica gel using ethyl acetate:dichloromethane:methanol (100:0:0 to 0:95:5) as eluant. The products were azeotroped with ether to afford the title compounds as white foams.

Ex No Data 189 Z 3-Chloro-2-fluorophenyl; Y H; Y' H; 1 H NMR (400MHz, CDCI 3 8 1.68-2.07 4H), 2.75 1H), 2.92 (m, 1H), 3.01 1H), 3.61 1H), 4.60 1H), 5.64 2H), 7.06 2H), 7.13 1 7.38-7.57 7H). LCMS: m/z ES' 488 [MNa] 4 190 Z 3-Chlorophenyl Y 4-OCH3; Y' H; 1 H NMR (400MHz, CDCI 3 5 1.75-2.20 4H), 2.79 1H), 2.93 (m, 2H), 3.80 1H), 3.84 3H), 4.56 1H), 5.66 2H), 6.94 2H), 7.01 2H), 7.26 1H), 7.28-7.40 3H), 7.51 2H). LCMS: m/z ES 500 [MNa]* 191 Z 3-Chloro-2-fluorophenyl; Y 4-F; H; 1 H NMR (400MHz, CDCI1): 8 1.72-2.07 4H), 2.77 1H), 2.90 (m, 1H), 3.02 1H), 3.62 1H), 4.61 1H), 5.64 2H), 7.05-7.19 (m, 6H), 7.41 1H), 7.49 2H). LCMS: m/z ES' 503 [MNa]' 192 Z 3-Chloro-2-fluorophenyl; Y 4-Br; H; 1 H NMR (400MHz, CDCI 3 8 1.71-2.06 4H), 2.72 1H), 2.94 (m, 1H), 3.05 1H), 3.63 1H), 4.62 1H), 5.65 2H), 6.95 2H), 7.14 1H), 7.27 1H), 7.43 1H), 7.49 2H), 7.60 2H). LCMS: m/z ES' 546 [MH]' WO 2005/063754 WO 205103754PCT11B2004/004059 -124- 193 Z 3-Chloro-2-fluoro-phenyl; Y 4-CE 3

H;

I H NMVR (400MHz, CDC 3 8 1.75-2.15 (in, 4H), 2.76-2.94 (mn, 2H), 3.05 (in 3.62 (in, I1H), 4.67 (in, 1 5.76 2H), 7.14 (dd, 1 7.20-7.30 7.36-7.50 (in, 4H), 7.75 2H). LCMS: m/z ES 4 556 [MNa] 4 194 Z 3-Chiorophenyl; Y 4-OH 3 Y' H; 'H NMR (400MHz, CDCI 3 8 1.88 (in, 2H), 2.06 (in, 2H), 2.42 3H), 2.79-3.00 (in, 3H), 3.80 (in, 1 4.59 (in, 1 5.70 2H), 7.07 2H), 7.23-7.40 (in, 6H), 7.53 2H). LCMS: mlz ES+ 484 [MNa]+ 195 Z =3-Chloro-2-fluoro-phenyl; Y 4-CN; Y' H; 'H NMVR (400MHz, CDCI 3 5 1.67-2.00 (in, 4H), 2.67 (in, 1 2.80-3.08 (in, 2H), 3.60 (in, 1 4.58 (in, 1 5.64 2H), 7.11 1 7.16-7.25 (in, 3H), 7.41 1 7.46 2H), 7.75 2H). LCMS: m/z ES* 513 [MNa]f 196 Z =3-Chioro-2-fluorophenyl; Y 4-Cl; Y' 2-CH 3 'H NMVR (400MHz, CDCI 3 8 1.68-1.98 (mn, 6H), 2.07 (in, 1 2.60 (in, 1 1.80-3.13 (in, 2H), 3.60 1 4.60 1 5. 55 1 5.67 (d, 1 6.86-7.50 (in, 8H). LCMS: m/z ES+ 536 [MNa]f 197 Z 3-chiorophenyl; Y =4-Cl; Y' 3-F; 'H NMVR (400MHz, 00013): 6 1.84 (in, 2H), 2.00 (in, 2H), 2.72 (mn, 1 H), 2.94 (in, 2H), 3.83 (in, 1 4.55 (mn, 1 5.67 2H), 6.90 2H), 7.26- 7.41 (in, 4H), 7.50-7.56 (in, 3H). LOMS: m/z ES' 500 [MH] 4 198 Z =3-Chloro-2-fluoro-phenyl; Y =4-Cl; 3-Cl; 1H NMVR (400MHz, CDCl3): 8 1.80 (in, 1 1.86-2.05 (in, 3H), 2.74 (mn, 1 2.92 (mn, 1 3.04 (mn, 1 3.61 (mn, 1IH), 4.61 (mn, 1IH), 5.70 2H), 7.05-7.16 (in, 3H), 7.27 (br s, 1 7.40 1 7.50 2H), 7.55 1 H) LOMS: m/z ES+ 534 [MNa] Examples 199 to 201: A mixture of the appropriate acid, ZCO 2 H, (1.2 1-hydroxybenzotriazole hydrate (1.2 triethylamnine (2 to 4 eq.) and 1-(3-dimethylaininopropyl)-3-ethylcarbodiimide WO 2005/063754 PCT/1B2004/001059 -125hydrochloride (1.2 eq.) and the appropriate amine, or amine hydrochloride, selected from preparations 2 and 143 (1 eq.) in dichloromethane (26 mlmmo[- 1 was stirred at room temperature for 24 hours. The reaction was then washed with 2N sodium hydroxide solution and the organic solution was evaporated under reduced pressure. The crude product was purified by column chromatography on silica gel using an elution gradient of ethyl acetate: methanol: 0.88 ammonia (100:0:0 to 95:5:0.5) to afford the title compounds.

Ex Data No 199 Z =Cyclopropylmethyl; X =CH 2 00H 2

CH

3 'H NMR (400MHz, CDC 3 3 0.18 (in, 2H), 0.58 (in, 2H), 1.06 3H), 1.70-1.90 (in, 3H), 2.00 (in, 2H), 2.22 (in, 2H), 2.59-2.77 (in, 2H), 3.02 (in, I1H), 3.40 2H), 3.92 (in, 1IH), 4.40 2H), 4.55 (in, 1 7.22 (d, 2H), 7.54 2H). LCMS: m/z APCI 4 403 [MH]" -iO Z 5-Trifluoromethylpyridin-2-yl; X CH 2

OCH

2

CH

3 'H NMVR (400MHz, CDCI 3 5 1.08 3H), 1.79-2.04 (in, 4H), 2.60 (mn, 1 2.95-3.17 (mn, 2H), 3.20 2H), 3.78 (mn, 1 4.41 2H), 4.59 (mn, 1 7.22 2H), 7.57 2H), 7.77 1 7.95 1 8.55 (s, 1IH). LCMS: m/z APCI* 494 [MH]+ Z 1 H-1lndazol-3-y: Y 4-Cl; Y' H; X CH 3 'H NMR (400MHz, COCl 3 5 1.65-1.88 (mn, 4H), 2.15 3H), 2.80-2.97 (mn, 2H), 3.08 (mn, 1 4.42-4.62 (in, 2H), 7.20 (dd, 1 7.40 (dd, 1 H), 7.57 (mn, 3H), 7.65 2H), 7.90 1IH), 13.42 1 LCMS: m/z APCI+ 421 [MH]+ A 5-(trifluoromethyl)-2-pyridinecarboxylic acid was used and may be prepared a.s described in J. Org. Chem. (European) 2003; 1559-1568.

B reaction was performed in the absence of 1-h ydroxybenzotriazole hydrate and 0 triethylamine.

Examples 202 to 204: A solution of the appropriate acid, ZCO 2 H, (1.5 O-benzotriazol-1-yl-NNN,Ntetrainethyluroniuin hexafl uorophosp hate (2 N-methylinorpholine (5 eq.) and the WO 2005/063754 PCT/1B2004/004059 -126appropriate amine hydrochloride selected from preparations 2 and 133 (1 eq.) in dichloromethane (8 ml-mmol-) was stirred at room temperature for 24 hours. The reaction was then washed with sodium hydroxide solution and the organic solution was evaporated under reduced pressure. The crude product was purified by column on silica gel using an elution gradient of d ichloromethane: methanol: 0. 88 ammonia (1 00:0:0 to 90:10:1) to afford the title compounds.

Ex Data No 202 Z 4-Chloro-3-fluorophenyl; X CH- 3 'H NMR (400MHz, CD 3 00): 8 1.79-1.99 (in, 4H), 2.23 3H), 2.85 (in, 2H), 3.11 (in, 1 3.70 (mn, I1H), 4.58 (in, 1 7.22 1 7.37 (d, 1H), 7.45 7.58 (mn, 1IH), 7.64 2H). LCMS: m/z APCI' 433 203 Z 2,3,4-Trifluorophenyl; X CH 3 'H NMR (400MHz, CD 3 OD): 8 1.82 (in, 3H), 1.98 (in, I 2.22 3H), 2.89 (mn, 2H), 3.15 (in, 1 3.60 (mn, 1 4.60 (in, 1lH), 7.12 (in, 2H), 7.44 (in, 2H), 7.66 (in, 2H). LCMS: m/z APC+ 435 204 Z 1 H-lndazol-3-yl; X 1 H NMR (400MHz, CDCI 3 3. 1.80-2.15 (mn, 5H), 2.18 2.75 (mn, I1H), 2.80-2.92 (in, 3.17 (in, 1 4.04 4.62-4.81 (mn, 2H), 4.86 I 7.15 (in, 3H), 7.30 (dd, 1IH), 7.50 (in, 3H), 8.00 1IH), 11.90 (br s, 1 LCMS: m/z ES" 500, 502 Examples 205 to 207: A solution of the appropriate acid, ZC0 2 H (1.2 O-benzotriazol-1-yl-NNN,Ntetrainethyluronium hexafl uorop hosp hate (1 .2 N-inethylinorpholine (1 .4 eq.) and the appropriate amine selected from preparations 12 and 136 (1 eq.) in dichloroinethane (7ito 10 mLiniolF 1 was stirred at room temperature for 24 hours. The 1 5 reaction was then partitioned between sodium hydroxide solution and dichloroinethane, and the layers were separated. The organic solution was washed with ammoniumn WO 2005/063754 WO 205/03754PCTlIB2004/004059 -127chloride solution, dried over MgSO 4 and then it was evaporated under reduced pressure.

The crude product was purified by column chromatography on silica gel using an elution gradient of dichloromethane:methanol:0.88 ammonia (1 00:0:0 to 90:10: 1) to afford the title compounds.

Ex Data No SZ 3-Difluoromethyl-phenyl; X [1,2,3]-triazol-2-ylmethyl 'H NMR (400MHz, CDCI 3 6 1 .78-2.02 (in, 4H), 2.70 (in, 1 2.95 (in, 2H), 3.80 (in, 1 4.58 (in, 1 5.63 2H), 6.50-6.80 1 7.01 (d, 2H), 7.42-7.58 (in, 8H). LCMS: m/z APCI' 498, 500 [MH]f Z =4-Difluoroinethyl-phenyl; X [1,2,3]-triazol-2-ylmethyl 1 H NMR (400MHz, CDCI 3 5 1 .78 (mn, 2H), 1.97 (in, 2H), 2.66 (mn, 1 H), 2.90 (in, 2H), 3.78 (in, 1IH), 4.58 (in, 1IH), 5.61 2H), 6.46-6.78 I H), 6.98 2H), 7.22 2H), 7.39-7.57 (in, 8H). LCMS: m/z APCI 4 498, 500

[MH]'

207 Z =1 H-lndazol-3-yl; X 2-piperidin-1 -yl-ethyl; 1 NMR (400MHz, CDCI 3 6 1.38 (in, 2H), 1.50 (in, 4H), 1.74-2.18 (in, 4H), 2.30 (mn, 4H), 2.72 (in, 6H), 2.88 (in, I1H), 3.19 (in, 1IH), 4.61-4.88 (in, 2H), 7.18 (in, 3H), 7.30 (in, 1IH), 7.54 (in, 3H), 8.02 1 LCMS: m/z APCI1- 518 A 3-difluoromethyl benzoic acid was used. It can be prepared according to Tetrahedron 31; 1977; 39 1-401.

B =4-difluoromethyl benzoic acid was used. It can be prepared according to Tetrahedron 31; 1977; 39 1-401.

C product additionally recrystallised from isopropyl alcohol, and 2.8 eq of Nmethylmorpholine was used.

Examples 208 to 210:

N-N

N

z Y A mixture of the appropriate oxadiazole selected from preparations 66 and 67 (1 eq.), the appropriate aniline from preparations 166 and 168 or commercially available 4chloro-2-(trifluoroinethoxy)phenylainine (1.5 to 2.0 eq.) and trifluoroacetic acid (0.5 to WO 2005/063754 PCT/IB2004/004059 -128eq.) in toluene (2.5 to 9.5 mLmmorl) was heated at 110"C for 18 hours. The cooled mixture was partitioned between dichloromethane and sodium carbonate solution, and the layers were then separated. The organic phase was dried over MgSO 4 and evaporated under reduced pressure. The crude product was purified by column chromatography on silica gel using dichloromethane:methanol:0.88 ammonia (100:0:0 to 90:10:1) as eluant to afford the title compounds.

Ex No Data 208 Z 3-Chlorophenyl; Y 4-CI; Y' 2-OCH 2

CH

3 X H; 'H NMR (400MHz, CD30D): 5 1.23 3H), 1.78-1.98 4H), 2.92 (m, 2H), 3.16 1H), 3.70 1H), 4.14 2H), 4.58 1H), 7.18 1H), 7.34 2H), 7.42 3H), 8.43 1 LCMS: m/z APCI' 445 209 Z 3-Chlorophenyl; Y 4-CI; Y' 2-OCF 3 X H; 1 H NMR (400MHz, CD 3 OD): 8 1.80-1.98 4H), 2.84-2.99 2H), 3.10-3.20 1H), 3.72 1H), 4.60 1H), 7.37 1H), 7.44 (m, 3H), 7.70 2H), 7.78 1H), 8.62 1H). LCMS: m/z APCI 4 485 210 Z 4-Chlorophenyl; Y 4-CI; Y' 2-pyrrolidin-l-ylmethyl; X CH 3 1 H NMR (400MHz, CDC13): 5 1.64-1.84 7H), 2.18 3H), 2.37 (m, 4H), 2.58 1H), 2.78-2.99 2H), 3.16-3.20 2H), 3.64-3.95 (m, 1H), 4.45-4.70 1H), 7.09 1H), 7.30-7.44 5H), 7.62 1H).

LCMS: m/z APCI 498 Examples 211 to 216: N-

X

z Y A mixture of the appropriate oxadiazole selected from preparations 66 to 69, 71 and (1 aniline (1.5 to 2.0 eq.) and trifluoroacetic acid (0.5 to 1.0 eq.) in toluene (1.0 to mLmmol 1 was heated at 170 to 185°C for 20 minutes under microwave radiation.

The crude solution was purified by column chromatography on a silica gel cartridge using dichloromethane:methanol:0.88 ammonia (100:0:0 to 90:10:1) as eluant to afford the title compounds.

WO 2005/063754 WO 205103754PCT11B2004/004059 -129- Ex No Data 211 Z 3-Ohiorophenyl; Y 4-Cl; 2-OCH 2

CF

3 X H; 'H NMR (400MHz, ODC1 3 5 1.78-2.02 (in, 4H), 2.80 (in, I 2.95-3.06 (mn, 2H), 3.81 (in, 1IH), 4.40 2H), 4.58 (in, 1 7.17 1IH), 7.25 (in, 3H), 7.38 (in, 3H), 8.18 1 LCMS: m/z APCI" 499 [M" Z 4-Chiorophenyl; Y =4-Cl; Y' H; X CF 3 1H NMR (400MHz, CDCI 3 6 1.82 (in, 2H), 2.00 (in, 2H), 2.76 (mn, 1 H), 2.83-3.02 (in, 2H), 3.83 (mn, 1 4.60 (in, 1IH), 7.22 2H), 7.37 2H), 7.40 2H), 7.60 2H). LOMS: m/z APCI" 469 213 Z 3-Chiorophenyl; Y 4-Cl; Y' H; X CH 2 0CH 2

CH

3 'H NMR (400MHz, ODC! 3 6 1.08 3H), 1.78-1 .90 (in, 2H), 1.92-2.02 (in, 2H), 2.78 (in, 1 2.80-3.02 (in, 2H), 3.41 2H), 3.80 (in, 1 H), 4.41 2H), 4.60 (in, 1 7.24 (in, 3H), 7.36 (in, 2H), 7.57 2H).

LCMS: m/z APCI 459 [M] 214 Z 4-Chiorophenyl; Y 4-CH 3 Y' 2-CH 3 X OH 3 1H NMR (400MHz, CDCI 3 8 1.68-2.00 (in, 7H), 2.14 3H), 2.40 (s, 3H), 2.58 (in, 1IH), 2.78-2.98 (in, 2H), 3.78 (in, 1IH), 4.54 (in, 1 6.97 (in, 1 7.15 (in, 1 7.20 1 7.30 2H), 7.36 2H). LOMS: m/z APOI- 409 [MH]- 215 Z 4-Chiorophenyl; Y 4-Cl; Y' 2-OH 3 X CH 2

CH

3 1 H NMR (400MHz, CDCI 3 6 1.20 3H), 1.68-2.02 (in, 6H), 2.14 (mn, 1 2.38-2.58 (in, 3H), 2.79-2.98 (in, 2H), 3. 80 (in, 1 4.58 (in, 1 H), 7.04 (in, 1 7.26-7.39 (in, 5H), 7.41 I LCMS: m/z ES* 443, 446

[MH]'

216 Z 3-chiorophenyl; Y 4-Cl; Y' H; X pyrazol-1 -ylmethyl; 1 H NMR (400MHz, OD 3 OD): 8 1.80-1.97 (in, 4H), 2.82 (in, 2H), 3.06 (in, 1 3.69 (in, 1IH), 4.58 (in, 1 5.41 2H), 6.18 1 7.20 (in, 2H), 7.30 (in, 2H), 7.38-7.57 (mn, 5H). LOMS: m/zAPOI+ 481 A Crude reaction mixture was partitioned between ethyl acetate and 2N hydrochloric acid, then the organic solution washed with saturated sodium bicarbonate solution and evaporated under reduced pressure.

WO 2005/063754 WO 205/03754PCT/1B2004/004059 -130- Examples 217 to 222: A solution of the appropriate acid selected from preparation 158 and 159 (1 1hydroxybenzotriazole hydrate (1.5 triethylamine (4 eq.) and 1-(3dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (1.5 eq.) in dlichioromethane mLmmo[ 1 was added to a solution of the appropriate amine (HNR 4 R11 5 (1.5 eq.) in dichloromethane (2.5 ml-mmol 1 and the reaction was stirred at room temperature for 24 hours. The reaction was then washed with ammonium chloride solution, and the organic solution was evaporated under reduced pressure. The crude product was purified by column chromatography on silica gel using an elution gradient of dichloromethane:methanol:0.88 ammonia (1 00:0:0 to 95:5:0.5) to afford the title compounds.

Ex Data No R~ R 4 H; R" bicyclo[1.1.llpent-1-yl; X OH 3 1 1-1 NMR (400MHz, CDCI 3 8 1.58-1.78 (in, 4H-1), 1.86 (in, 3H-1), 2.02 (in, 5H-1), 2.22 3H-1), 2.79 (mn, 21-1), 3.32 (in, 21-1), 5.90 1 7.24 2H-1), 7.54 (d, LOMVS: m/z APCl' 386 [MH]+ 218 R 4 H; R5 t-butyl; X [1 ,2,3]-triazol-2-ylinethyl 'H NMR (400MHz, CDC1 3 81.29 9H), 1.55-1.74 (mn, 1.99-2.09 (mn, I1H), 2.80 (in, 21-1), 3.38 (mn, 2H-1), 5.23 (in, I1H), 5.59 2H-1), 7.10 21-1), 7.40 2H-1), 7.52 21-1). LCMS: m/z APC' 443 [MHf 219 NR 4 R azetidin-1-yl; X [1 ,2,3]-triazol-2-ylinethyl 1 1-1 N MR(400MHz, CDC1 3 8 1.56-1.68 (mn, 2.18-2.30 (in, 3H-1), 2.80 (in, 2H), 3.37 (in, 2H-1), 3.98 21-1), 4.16 2H-1), 5.59 7.10 2H-1), 7.40 7.55 21-1). LCMS: m/z ES+ 427 [MH] 4 220 NR 4 R* pyrrolidin-11-y; X [1,2,3]-triazol-2-ylinethyl 1 1-1 NMR (400MHz, CDCI 3 8 1.59-1.76 (in, 1.82 (in, 2H-1), 1.95 (mn, 2H-), 2.41 (in, 1IH), 2.82 (in, 2H), 3.36-3.46 (in, 5.59 2H-1), 7.15 2H), 7.40 2H-1), 7.55 21-1). LCMS: m/z ES+ 441 [MH]+ WO 200n5/063754 PCT/IB2004/0040n59 -131- 221 NR 4 R" morpholin-4-yl; X [1,2,3]-triazol-2-ylmethyl 'H NMR (400MHz, CDC13): 8 1.58-1.78 4H), 2.56 1H), 2.82 2H), 3.38 2H), 3.44 2H), 3.60 2H), 3.62 4H), 5.60 2H), 7.12 (d, 2H), 7.40 2H), 7.52 2H). LCMS: m/z ES' 457 [MH] 222 R 4 H; R" 2-phenylethyl; X [1,2,3]-triazol-2-ylmethyl 'H NMR (400MHz, CDC13): 8 1.52-1.68 4H), 2.04 1H), 2.79 4H), 3.36 2H), 3.47 2H), 5.40 1H), 5.59 2H), 7.10 2H), 7.17 (d, 2H), 7.20-7.36 3H), 7.40 2H), 7.54 2H). LCMS: m/z ES' 491 [MH] A 1-bicyclo[. 1.1]pentylamine hydrochloride (see ref. J.O.C. 2001; 66(19); 6282-6285).

Example 223: 1-[4-(4-Chlorophenyl)-5-methyl-4H-1,2,4-triazol-3-yl]-N-isopropyl-4methylpiperidine-4-carboxamide

N-N

N CH CH, CI Oxalyl chloride (0.04 mL, 0.55 mmol) was added to a solution of the acid of preparation 160 (50 mg, 0.15 mmol) in dichloromethane (50 mL), and the solution was stirred at room temperature for 20 minutes. Additional oxalyl chloride (0.02 mL, 0.27 mmol) was added and the solution was stirred for a further 10 minutes. The solution was then evaporated under reduced pressure and the residue was azeotroped with dichloromethane The oily residue was dissolved in dichloromethane (10 mL).

Isopropylamine (0.19 mL, 2.25 mmol) was added to the solution and the mixture was then stirred at room temperature for 18 hours. The reaction was then washed with ammonium chloride solution, dried over MgS04 and then evaporated under reduced pressure. The residue was purified by column chromatography on silica gel using dichloromethane:methanol:0.88 ammonia (95:5:1) as eluant. The product was triturated with ether to afford the title compound as a solid, 30 mg.

1 H NMR (400MHz, CDCIs): 8 1.15 9H), 1.42 2H), 1.95 2H), 2.22 3H), 3.02 2H), 3.18 2H), 4.03 1H), 5.38 1H), 7.26 2H), 7.57 2H); LCMS: m/z APCI' 376 [MH]' WO 2005/063754 PCT/IB2004/004059 -132- Example 224: N-{1-[4-(4-Chlorophenyl)-5-methyl-4H-1,2,4-triazol-3-yl]piperidin-4-yl} benzamide

N-N

a c Triethylamine (105 pL, 0.75 mmol) and then benzoyl chloride (79.6 gL, 0.69 mmol) were added to a solution of the amine of preparation 145 (200 mg, 0.69 mmol) in dichloromethane (5 mL), and the reaction was stirred at room temperature for 5 minutes.

Water (5 mL) was added and the mixture was stirred vigorously for 5 minutes. The mixture was then filtered using a phase separation cartridge and the organic layer was concentrated under reduced pressure. The residue was then azeotroped with ether to provide the title compound as an off-white solid, 278 mg.

'H NMR (400MHz, CD 3 OD): 5 1.55 2H), 1.86 2H), 2.22 3H), 2.93 2H), 3.52 2H), 3.97 1H), 7.42 2H), 7.45-7.53 3H), 7.63 2H), 7.75 2H); LCMS: m/z APClI 418 [MNa]' Example 225: 1-Benzoyl-4-[4-(4-chlorophenyl)-5-methyl-4H-1,2,4-triazol-3-yl] piperazine 0 Nf\ NI

CH,

ci 1-Hydroxybenzotriazole hydrate (150 mg, 1.1 mmol), 1-(3-dimethylaminopropyl)-3ethylcarbodiimide hydrochloride (225 mg, 1.17 mmol), triethylamine (0.4 mL, 2.7 mmol) and the amine of preparation 144 (250 mg, 0.9 mmol) were added sequentially to a solution of benzoic acid (110 mg, 0.9 mmol) in dichloromethane (10 mL). The reaction was then stirred at room temperature for 18 hours. The mixture was partitioned between 2M sodium hydroxide solution and dichloromethane, and then the phases were separated. The aqueous layer was further extracted with dichloromethane, and the combined organic solutions were evaporated under reduced pressure. The crude product was purified by column chromatography on silica gel using an elution gradient of dichloromethane:methanol:0.88 ammonia (100:0:0 to 95:5:0.5) to afford the title compound as a white foam, 182 mg.

WO 2005/063754 PT1104045 -133- 'H NMR (400MHz, CDC 3 6 2.22 3H), 3.08 (in, 4H), 3.38-3.78 (in, 4H), 7.25 2H), 7.39 (in, 4H), 7.54 3H11). LCIMS: m/z APCI' 382 [MH] Microanalysis found: C, 61.66; H, 5.32; N, 17.42. C 20

H

20 ClN0;0.14CH 2 Cl 2 requires C, 61.43; H, 5.19; N, 17.79%.

Example 226: 4-Benzoyl-l1-[4-(4-ch lorophenyl)-5-(methoxymethyl)-4H- 1,2,4-triazo1-3-y]- 2-methylpiperazine 0 CH 3 N' Triethylamine (100 VtL, 0.71 mmol), and then benzoyl chloride (82 4~L, 0.71 mmol) were added to a solution of the compound of preparation 149 (150 mg, 0.47 inmol) in dichloromethane (10 mL), and the reaction was then stirred at room temperature for 18 hours. The mixture was washed with sodium bicarbonate solution, the layers separated and the organic solution evaporated under reduced pressure. The crude product was purified by column chromatography on silica gel using ethyl acetate: methanol: 0.88 ammonia (95:5:0.5) as eluant to afford the title compound as a white solid, 120 mg.

1 H NMVR (400MHz, CDC 3 561.01-1.16 (in, 3H), 3.18-3.23 (mn, 3H), 3.30 3H), 3.39- 3.48 (in, 3 3.83 (in, I 4.04 (in, I1H), 4.28 I1H), 4.38 I1H), 7.39 (in, 7H), 7.52 2H); LOMS: m/z APCI 4 426 [MHf Example 227: 1 -(4-Chlorobenzoyl)-4-[4-(4-chlorophenyl)-5-(methoxynethyl)-4H-1 ,2,4triazol-3-ylJ-2-inethylpiperazine 0 N

N.IN

CH,

cii The title compound was prepared from the compound of preparation 150 and 4chlorobenzoyl chloride in 37% yield, following the procedure described for example 226.

'H INMR (400MHz, CDC 3 6 1.08 3H), 2.94-3.39 (in, 8H), 4.34 2H), 7.25 2H), 7.39 (in, 4H), 7.54 2H); LCMS: m/z APCII 460 [M+ WO 2005/063754 PCT/IB2004/004059 -134- Example 228: 1-[4-(4-Chlorophenyl)-5-(methoxymethyl)-4H-1,2,4-triazol-3-yl]-4-(3fluorobenzoyl)-1,4-diazepane

N-N

NOT N CH 3

ON

F e The title compound was prepared from the compound of preparation 148 and 3fluorobenzoyl chloride in 84% yield, following the procedure described for example 224.

1 H NMR (400MHz, CDC 3 5 1.68-1.80 2H) 3.17 1H), 3.25 3H), 3.39 4H), 3.58 1H), 3.65 1H), 3.78 1H), 4.22 2H), 7.02 1H), 7.10 2H), 7.22- 7.42 3H), 7.49 2H); LCMS: m/z APCI 444 Example 229: 4-(2-Chlorobenzoyl)-2-[4-(4-chlorophenyl)-5-methyl-4H-1,2,4-triazol-3yl]morpholine 0

N

C1

CH,

Trifluoroacetic acid (5 mL) was added to a cooled (5 0 C) solution of the compound of preparation 102 (1.3 g, 3.43 mmol) in dichloromethane (5 mL), and the solution was then stirred at room temperature for 2 hours. The mixture was concentrated under reduced pressure, and then triethylamine (450 mg, 4.47 mmol) and dichloromethane mL) were added.

A portion of this solution (10 mL) was treated with 2-benzoyl chloride (1.26 mmol) and then stirred for 2 hours at room temperature. Tris-(2-aminoethyl)amine polystyrene (500 mg) was added and the mixture stirred for a further 24 hours. The mixture was then diluted with aqueous ammonium chloride solution, the layers were separated using a hydrophobic membrane and the organic solution was purified directly using a silica gel cartridge and dichloromethane:methanol (100:0 to 95:5) as eluant to provide the title compound.

'H NMR (400MHz, CDCI 3 )(rotamers): 8 2.23, 2.34 (2xs, 3H), 3.00-3.62 3H), 3.64- 4.00 2H), 4.11-4.40 1H), 4.58, 4.90 (2xm, 1H), 7.17-7.40 6H), 7.56 2H); LCMS: m/z ES' 439 [MNa]' WO 200n5/063754 PCT/IB2004/0040n59 -135- Example 230: 1-(2-Chlorobenzoyl)-3-[4-(4-chloro-2-methylphenyl)-5-methyl-4H-1,2,4triazol-3-yl] piperid ine Cl 0 N

CH,

CI CH, Triethylamine (79 gL, 0.57 mmol) and then 2-benzoyl chloride (66 pL, 0.52 mmol) were added to a solution of the compound of preparation 146 (150 mg, 0.52 mmol) in dichloromethane (5 mL). The mixture was then stirred at room temperature for 18 hours. After this time the reaction was diluted with water (5mL) and the mixture was stirred rapidly for 30 minutes. The layers were then separated, the organic solution evaporated under reduced pressure and the product was azeotroped from ether to afford the title compound as a white foam, 193 mg.

'H NMR (400MHz, CDCI1): 8 1.38-1.82 3H), 1.82-2.22 8H), 2.54-2.87 1H), 3.03-3.50 2H), 4.80 1 6.94-7.50 7H); LCMS: m/z ES' 451 [MNa]' Example 231: 3-[1-(2-Chlorobenzoyl)pyrrolidin-3-yl]-4-(4-chloro-2-methylphenyl)-5methyl-4H-1,2,4-triazole

CH

3

CIH,

A mixture of the compound of preparation 147 (97 mg, 0.35 mmol), 2-chlorobenzoyl chloride (40.4 0.32 mmol) and N-methylmorpholine (58 pL, 0.53 mmol) in dichloromethane (5 mL) was stirred at room temperature for 18 hours. The reaction was then diluted with dichloromethane (20 mL), washed with 2N hydrochloric acid (20 mL) and saturated sodium bicarbonate solution (20 mL). The organic solution was then dried over MgSO 4 and concentrated under reduced pressure. The residual oil was triturated with ether, the resulting solid filtered off and then dried to afford the title compound, mg.

'H NMR (400MHz, CDC13)(rotamers): 8 1.84-2.62 8H), 3.00-3.20 1H), 3.22-3.42 1H), 3.44-3.79 2H), 3.81-3.98 1H), 7.20-7.50 7H); LCMS: m/z APCI 4 415

[MH]'

WO 2005/063754 PCTfIB2004/004059 -136- Example 232: N-{1 -[4-(4-Chlorophenyl)-5-(2H-1 ,2,3-triazol-2-ylmethyl )-4H-1 ,2,4-triazol- 3-yl]pyrrol idin-3-yl-N-methylacetamide

NN

CH N Ci N The title compound was obtained as a solid in 50% yield from the compounds of preparations 54 and 18, following the procedure described for preparation 93. IH NMVR (400MHz, CDCI 3 )(rotamers): 3 1.78-1.90 (in, 2H), 2.04 3H), 2.74 I1H), 2.80 3H), 2.98 (mn, 1IH), 3.04-3.18 (in, 2H), 3.22-3.38 (in, 2H), 4.40, 5.21 (2xm, 1IH), 5.55 (in, 2H), 7.03 2H), 7.38 2H), 7.52 2H); LCMS: m/z ES+ 423 [MNa]+ Example 233: 1 -[4-(4-Chlorophenyl)-5-inethyl-4H- 1,2,4-triazol-3-yl]-4-phenylpiperidime- 4-carboxamide

N>

NH 2 Sulphuric acid (930 ing, 95%, 9.5 minol) was added to a solution of the compound of preparation 96 (700 mg, 1.9 iniol) in acetic acid (1.5 mL), and the reaction was then heated at 100 0 C for 3 days. The cooled mixture was carefully quenched by the addition of 0.88 ammonia and then extracted with dichioromethane The combined organic layers were washed with brine, then dried over MgSO 4 and evaporated under reduced pressure. The product was crystallised from ethyl acetate to afford the title compound, 282 ing.

'H NMR (400MHz, CDC 3 52.06 2H), 2.20 3H), 2.32 (in,2H), 3.05-3.20 (in,4H), 5.20 (mn, 2H), 7.24 (mn, 3H), 7.38 (in, 4H), 7.52 LCMS: m/z ES' 396 [MH]+ WO 2005/063754 PCT/IB2004/004059 -137- Example 234: tert-Butyl 4-{[4-(4-chlorophenyl)-5-(2H-1,2,3-triazol-2-ylmethyl)-4H-1,2,4triazol-3-yl]oxy}piperidine-1 -carboxylate

H

3 C

H

3 N N A-N 0 Cl Tetrahydrofuran (2 mL) was added to sodium hydride (24 mg, 60% in mineral oil), which had been pre-washed with pentane (2 mL), and the suspension was stirred at room temperature. tert-Butyl 4-hydroxy-l-piperidinecarboxylate (119 mg, 0.6 mmol) was then added and the mixture was stirred at room temperature for a further 30 minutes. The compound of preparation 164 (100 mg, 0.3 mmol) was added and the reaction was stirred at room temperature for a further 18 hours. The reaction was then partitioned between dichloromethane (20 mL) and brine (20 mL), the layers separated and the organic phase evaporated under reduced pressure. The residue was dissolved in dichloromethane (6 mL), PS-DIEA (Argonaut Technologies) (638 mg) and triethylamine mL, 3.6 mmol) was added. The mixture was then stirred for 18 hours. The mixture was filtered, the filtrate was washed with saturated aqueous potassium carbonate solution and evaporated under reduced pressure. The crude product was purified by column chromatography on silica gel using dichloromethane:methanol (99:1) as eluant.

The product was further purified by HPLC using a Phenomenex Luna C18 column and 0.1% aqueous formic acid:acetonitrile/0.1% formic acid (80:20 to 5:95) to afford the title compound, 34 mg.

1 H NMR (400MHz, CD30D): 5 1.40 9H), 1.62 2H), 1.98 2H), 3.30-3.59 (m, 4H), 4.90-5.02 1H), 5.61 2H), 7.18 2H), 7.40 2H), 7.50 2H).

Example 235: N-(tert-Butyl)-4-[4-(4-chlorophenyl)-5-methyl-4H-1,2,4-triazol-3-yl] benzamide N N I >_CH,

N

H

H

3 C CH,

CI

tert-Butylamine hydrochloride (223 mg, 2.0 mmol), followed by a solution of the acid chloride of preparation 157 (150 mg, 0.4 mmol) in dichloromethane (3 mL), was added WO 2005/063754 PCT/IB2004/004059 -138to a solution of triethylamine (300 gL, 2.0 mmol) in dichloromethane (2 mL) and the reaction was stirred at room temperature for an hour. The mixture was then partitioned between dichloromethane and aqueous citric acid solution, and the phases were separated. The aqueous layer was further extracted with dichloromethane (2x25 mL) and the combined organic solutions were dried over MgSO 4 and evaporated under reduced pressure. The crude product was purified by column chromatography on silica gel using dichloromethane:methanol:0.88 ammonia (93:7:1) as eluant to afford the title compound, 122 mg.

1 H NMR (400MHz, CDCI 3 6 1.42 9H), 2.40 3H), 5.98 (br s, 1 7.19 2H), 7.41 2H), 7.50 2H), 7.61 2H); LCMS: m/z ES 391 [MNa] Examples 236 to 395: N

N

Cl The appropriate acid, ZCO 2 H, (0.25 mL, 0.2M solution in N,N-dimethylformamide, jimol) was, if necessary, neutralised with triethylamine (7 pl, 50 4mol per salt equivalent) and then treated with O-(7-azabenzotriazol-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate solution (0.1 mL, 0.525M, 52.5p.mol). The solution was then treated with triethylamine (28 p.I, 0.20 mmol) and the amine of preparation 12 (0.25 mL, 0.2M solution in N,N-dimethylformamide, 50 pVmol) in a 96 deep-well polypropylene microtitre plate. The plate was sealed and agitated for 16 hours at 40'C. The reaction mixtures were then evaporated under reduced pressure and the residues were purified by HPLC using a Waters XTerra MS C18 column, and acetonitrile:10mM ammonium hydrogen carbonate (adjusted to pH 10 with ammonium hydroxide) (5:95 to 98:2), to provide the desired compounds.

Time %A %B %D 0 min 94 5 1 min 4.5 95 min 4.5 95 0.4 WO 2005/063754 WO 205/03754PCTIIB2004/004059 -139- Ex No Z MS Retention time (min) 236 5-methyl-i -phenyl-1 H-p yrazol-4-yI 529 2.26 237 5-methyl-i H-indol-2-yl 502 2.56 238 3-(l1H-indol-3-yi)propyl 530 2.17 239 1 -benzyl-1 H-pyrazol-4-y 529 2 240 3-(2-fluorophenyl 1 H-pyrazo-5-y 533 2.08 241 3-(4-methylphenyl)-1 H-pyrazol-5-y 529 2.17 242 2-(phenyl methyl)thiazol-4-y 546 2.26 243 5-methyl-I H-indazol-3-y 503 2.04 244 (2,5,7-trimethyl-1 H-indol-3-yI)methyl 544 2.3 245 4,5,6 ,7-tetrahydro-2-methy-2H-indazol-3-yI 507 1.95 246 1 H-indazol-1 -ylmethyl 503 1.95 247 3-(2,5-dimethylphenyl)propyl 519 2.47 248 (1 S)-1 -(dimethylamino)-2-phenylethyl 520 2.04 249 (2,5-dimethyl-1 ,3-thiazol-4-yI)methy 498 1.87 250 (4-methoxyphenyl)-5-methy- 1 H-pyrazol-4-y] 559 2.04 251 1 -(l1-cyclopenten-1 -y)butyl 495 2.47 252 cyclohex-3-en-1-yI 453 2.04 253 (1 ,3-dimethyl-1 H-thieno[2,3-c]pyrazol-5-y) 523 1.91 254 (28)-i -(tert-butoxycarbonyl)piperidin-2-y 556 2.3 255 benzo[b]thien-3-y 505 2.21 256 4-(5-oxazolyi)pheny 516 1.87 257 3-(2-methyl-4-thiazolyl)phenyl 546 2.13 258 2-phenoxypyridin-5-y 542 2.21 259 2-methyi-4-phenypyrimidin-5-y 541 1.95 260 5-methoxy-indo-2-y 518 2.13 261 4-chlorobenzyl 497 2.43 262 1 -phenylcyclopentyl 517 2.69 263 3-(4-fluorophenyl)-3-oxopropyl 523 2.03 264 1 ,2,3,4-tetrahydronaphthalen-2-y 503 2.23 265 cyclopentyl(phenyl)methyl 531 2.52 biphenyl-4-ylmethyl 2.37 WO 2005/063754 WO 205/03754PCTIIB2004/004059 -140- 267 1-(4-chlorophenoxy)-1 -methyethy 541 268 1-(3-chlorophenoxy)ethyl 527 2.23 269 2-methyl-I -phenylbutyl 519 2.49 270 (1 -naphthyloxy)methyl 529 2.13 271 (2,3-dimethyiphenoxy)methyl 507 2.2 272 3-(4-methylphenyl)propyl 505 2.18 273 1 H-indol-1 -ylethyl 516 2.12 274 (phenyithio)methyl 495 2.08 275 1 -(4-chlorophenyi)ethyl 511 2.27 276 2,3-dihydro-1 H-inden-2-yimethy 503 2.23 277 2-[(4-chlorophenyl)thio]propyl 558 2.47 278 2-chloro-4-fluorobenzyi 515 2.13 279 (1 R)-1 -phenyl-propyl 491 2.22 280 3-methoxycyciohexyl 485 1.81 281 1 -benzyl-2,2-dimethylpropyl 533 2.52 282 1 -methyl-2-phenylethyl 491 2.15 283 (benzyloxy)methyl 493 1.96 284 3-(4-chiorophenyl)-3-oxopropyl 539 2.17 285 [(4-chlorophenyl)thio]methyl 529 2.27 286 (benzylthio)methyl 509 2.12 287 3-chlorobenzyl 497 2.1 288 1 ,1-diphenylethyl 553 289 2,2-diphenylethyl 553 2.39 290 (2,3-dich lorophenoxy)methyl 291 4-fiuorobenzyl 548 2.29 292 2-methoxybenzyi 481 1.98 293 2-(2-methoxyphenyl)ethyl 493 1 .91 294 2,8-dimethylquinolin-4-yI 507 2.16 295 (2-naphthyloxy)methyi 528 2.21 296 2-naphthylmethyl 529 2.29 297 2-phenoxyethyl 513 2.26 298 1-(2-fluorophenyl)cyclopentyi 493 2.11 299 5-methoxy-1 -oxoindan-2-yI methyl 535 2.36 300 (3-methylbenzoyl)aminomethyl 520 1.89 WO 2005/063754 WO 205/03754PCT/11B2004/004059 301 Anti-4-methylcyclohexyl 469 2.26 302 3-phenyl-3-oxo-1 methyl-propyl 519 2.09 303 2-(2-methylphenyl)ethyl 491 2.21 304 1 -methyl-indol-3-ylmethyl 516 2.14 305 diphenylmethyl 539 2.38 306 1 -(4-chlorophenyl)-1 -methylethyl 525 2.41 307 1 -methyl-I -phenylethyl 491 2.26 308 1 -acetyloxy-1 -phenyimethyl 521 2.01 309 cyciohex-1 -en-1 -ylmethyl 467 2.12 310 (2R)-2-phenylpropyl 491 2.19 311 [(4-fluorophenyl)thiolmethyl 513 2.14 312 (2R)-1 -(tert-butoxycarbonyl)pipeidin-2-yI 556 2.26 313 3-(2,3-dihydro-I ,4-benzodioxin-6-y)propy 549 2.14 314 6-chioro-3-oxo-2,3-d ihydro-4H-1I,4-benzoxazin-4-yI 568 2.11 315 2-(4-fluorophenoxy)ethyl 511 2.16 316 2-hydroxyquinoxalin-3-y 517 1.57 317 5-methyl-3-phenylisoxazol-4-yl 530 2.07 318 isoquinolin-1-yi 500 1.87 319 2-phenoxyphenyl 541 2.29 320 quinolin-2-yI 500 1.97 321 quinolin-4-yl 500 1.8 322 quinolin-3-yI 500 1.87 323 2-naphthyl 499 2.21 324 5-butylpyridin-2-yi 506 2.22 325 3-benzoylphenyl 553 2.21 326 1 H-benzimidazo-6-yI 489 1.55 327 9-oxo-9H-fluoren-1 -y 551 2.16 328 4-methoxyquinoin-2-yI 530 2.07 329 1 -benzofuran-2-y 489 2.16 330 2-(4-methylbenzoyl)phenyl 567 2.31 331 7-methoxy-1 -benzofuran-2-yI 519 2.17 332 2,6-dimethoxypyridin-3-y 510 2.3 333 2,5-dimethyl-3-furyi 467 2.26 334 biphenyl-2-yI 525 2.52 WO 2005/063754 WO 205/03754PCTIIB2004/004059 -142- 335 5-methyi-2-thienyl 469 2.3 336 2-phenoxypyridin-3-yI 542 2.17 337 1, 3-benzoth iazo-6-y 506 2.08 338 3-phenylcinnolin-4-yI 577 1.76 339 3-tert-butyl-1 -methyl-i H-pyrazol-5-yl 509 2.26 340 2,1,3-benzoxadiazol-5-yi 491 2.26 341 5-bromo-2,3-dihydro-1 -benzofuran-7-yi 570 2.43 342 1 -(4-chlorophenyl)cyclopropy 523 2.27 343 5-isobutyiisoxazol-3-yI 496 2.23 344 3-(l1H-pyrazol- 1-yI)phenyl 515 1.91 345 3,5-dimethylindol-2-yl 516 2.32 346 4-(tert-butoxycarbonyl)morpholin-3-ymethy 572 1.98 347 3-isobutyl-1 H-pyrazol-5-y 495 1.96 348 5-propylisoxazol-3-yi 482 2.1 349 2,4-dimethyl-1 ,3-thiazol-5-yi 498 1.61 350 2-methylquinolin-4-yi 514 1.81 351 6-chloro-imidazo[1 ,2-a]pyridin-2-yI 523 1.71 352 3-phenyl-1 H-pyrazo-5-y 515 1.96 353 3-isopropyl-1 H-pyrazol-5-y 481 1.66 354 4,5,6,7-tetrahydro-2-indazol-3-yI 493 1.81 355 2,3-dimethyl-1 H-indol-5-yi 516 2.05 356 3,5-dimethyl-1 H-pyrrol-2-yI 466 1.96 357 5-dimethyl-1 H-pyrazol- 1-yI)phenyl 543 2 358 3-[(3,5-dimethyl-1 H-pyrazol-1 -yI)methyl]phenyl 557 1.98 359 3'-fluorobiphenyl-4-yi 543 2.37 360 4-phenyl-1 ,3-thiazol-2-yi 546 2.17 361 4-(l H-p yrazol-1 -yI)phenyl 515 1.9 362 5,7-dimethyl-pyrazolo[1 ,5-a]pyrimidin-2-yl 518 1.76 363 3-phenylisoxazol-5-yI 516 2.2 364 2,3-dihydro-1 -benzofuran-2-yI 491 2 365 1 H-benzimidazol-1 -yimethyi 503 1.73 366 5-(4-methoxyphenyl)-2-furyl 545 2.25 367 1 ,3-benzothiazol-2-ylethyl 534 2.03 368 2-methyl-5-propylpyrazo-3-y 495 1.96 WO 2005/063754 WO 205/03754PCTfIB2004/004059 -143- 369 1 -benzyl-2-oxo-1 ,2-dihydropyridin-3-yI 556 1 370 1 -benzyi-6-oxo-1I,6-dihyd ropyrid in-3-yI 556 1 371 2-phenyl-1 ,3-thiazol-4-y 532 2.22 372 4-methyl-2-phenyl-1 ,3-thiazol-5-yl 546 2.18 373 8-methoxy-2H-chromen-3-y 533 2.02 374 2H-chromen-3-yi 503 2.12 375 6-methoxy-2H-chromen-3-y 533 2.1 376 4-(tert-butoxycarbonyl)morpholin-3-yI 558 1.95 377 4-methoxy-3-thieny 485 1.85 378 4-(1 H-imidazol-1 -yl)phenyl 515 1.68 379 2-methyl-i H-benzimidazol-5-y 503 1.51 380 2,3-dihydro-1 H-inden-2-y 489 2.15 381 Trans-2-phenylcyclopropan-1I -yI 489 2.15 382 1 -methyl-i H-indoi-2-yI 502 2.18 383 1 -methyl-i H-indol-3-yI 502 2.02 384 5-fluoro-1 H-indoi-2-yI 506 2.13 385 6-methyl-4-oxo-4H-chromene-2-y 531 2.02 S3-isopropyl-1 -methylpyrazol-5-y 495 1.95 S5-bromo-2-methoxypyidin-3-yl 559 2.03 _88 5-methyl-2-phenyl-1 H-imidazol-4-yl 529 1.95 :i 3-(1 -oxo-1 ,3-dihydro-2H-isoindol-2-yI)propy 532 1.82 1 1-ethyl pi perid in-2-y 484 1.91 3-[(pyrimid in-2-yithio)methyljpheny 573 2.08 392 4-[(pyrid in-2-ylthio)methyl] phenyl 572 2.17 39 6-cyclohexyl-2-oxo-1 6-tetrahyd ropyrimidin-4-yI 551 2.04 ~~5-oxo-1 -propylpyrrolidin-3-yi 498 1.74 S 5-propylisoxazol-4-y 482 2 A 3-isopropyl-1-methyl-IH-pyrazole-5-carboxyic acid was used; see DE 3029281.

B 5-bromo-2-methoxynicotinic acid was used, see EP 306251, preparation I.

C 5-methyl-2-phenyl- 1H-imidazole-4-carboxylic acid was used, see J. Chem Soc.

1948;,1969.

D 3-(1-oxo-1,3-dihydro-2H-iscindol-2-yl)propanoic acid was used, see J. Med. Chem.

83; 26(2); 243.

E 1-ethylpiperidine-2-carboxylic acid was used, see Journal of Inorganic and Nuclear medicine; 1,978; 40(6); 1103-6.

WO 2005/063754 PCTIB2004/004059 -144- F 3-[(pyrimidin-2-ylthio)methyllbenzoic acid was used, see J. Indian Chaem. Soc. (97); 74 5 G 4-[(pyridin-2-ylthio)methyllbenzoic acid was used, see US 4325959, example 2.

H 6-cyclohexyl-2-oxo- 1, 2,3, 6-tetrahydropyrimidine-4-carboxylic acid was used, see J-0C. 2000; 65(20); 6777.

I= 5-oxo-1-propylpyrrolidine-3-carboxylic acid was used, see WO 200202614.

J= 5-prop ylisoxazole-4-carboxylic acid was used, see J. Het Chem. 1991; 28(2) 453.

Examples 396 to 403:

.N,

CI

A mixture of the appropriate amine from preparation 12a (11 the appropriate acid chloride (1.2 to 1.4 eq.) and polymer supported N-ethyldiisopropylamine (10 eq.) in dichloromethane (16 mlmrmol-) was stirred at room temperature for 2 hours. Tris-(2aminoethyl)amine polystyrene was added and the mixture was stirred for an hour. It was then washed with 1 N sodium hydroxide solution. The aqueous solution was extracted with dichioromethane (2x) and the combined organic solutions were concentrated under reduced pressure. The crude products were purified by column chromatography on silica gel using ethyl acetate: methanol: 0.88 ammonia (90:10: 1) as eluant, to afford the title compounds.

Ex Data No 396 W 2-CE 3 'H N MR (400MHz, CDCI 3 8 1.61-1.76 (in, 1IH), 1.79-1.98 (in, 3H), 2.62-2.80 (mn, 1 2.84-2.97 (in, 3.42 (in, 1IH), 4.60 (mn, 1IH), 5.62 6.99 (in, 7.20-7.55 (in, 61-1), 7.59 (in, 1 7.66 (in, 1 LCMS: m/z APCI+ 516

[MH]+

397 W 3-C F 3 1 H NMR (400MHz, CDCI 3 5 1.80 (in, 21-1), 1.98 (in, 2.70 (in, 1 2.88- 3.02 (in, 2H), 3.72 (in, 1 4.57 (in, 1IH), 5.62 7.00 (mn, 7.22 (d, 7.25-7.59 (in, 7.65 (mn, LCMS: m/z APCI* 516 [MH]f WO 2005/063754 WO 205/03754PCTfIB2004/004059 -145- 398 W 4-CF 3 1 H NMR (400MHz, CD 3 00): 8 1.78-1.96 (in, 4H), 2.82 (in, 2H), 3.00-3.14 (in, 1 3.62 (in, 1 4.58 (in, 1 5.67 2H), 7.22 (in, 2H), 7.50 2H), 7.58 (in, 4H), 7.77 2H). LCMS: m/z APCI" 516 39"' W 2-F, 1 H NMR (400MHz-, CDC 3 8 1.78-2.00 (in, 4H), 2.70 (in, 1IH), 2.91 (in, I H), 3.01 (in, 1 3.62 (in, 1 4.58 (in, 1 5.63 2H), 7.01 (mn, 3H), 7.30 (in, 2H), 7.42 2H), 7.50 2H). LCMS: m/z APCI' 500 [MH]+ -ZO" W =3-F 1 NMR (400MHZ, CDCI 3 6 1.66-1.81 (in, 2H), 1.98 (in, 2H), 2.66 (in, 1 H), 2.80-2.96 (in, 2H), 3.74-3.82 (in, 1 4.45-4.60 (in, 1 5.62 2H), 6.99- 7.12 (in, 4H), 7.15 1 7.37 (in, 1 7.42 2H), 7.49 2H). LCMS: m/zAPCI' 466 [MH]+ Ii W 2,3-di-F 1 H NMR (400MHz, CDC13): 831.74-2.00 (in, 4H), 2.72 (mn, I1H), 2.79 (in, 1 H), 3.01 (in, 1 3.62 (mn, 1IH), 4.60 (in, I 5.62 2H), 7.01 (in, 2H), 7.07- 7.21 (in, 3H), 7.42 2H), 7.52 2H). LCMS: m/z APCI* 484 [MH] W 2-F, 3-Cl 1 H NMR (400MHz, CDC1 3 5 1.62-2.00 (in, 4H), 2.70 (in, 1IH), 2.82-3.06 (in, 2H), 3.60 (in, 1 4.60 (in, 1 5.62 2H), 7.00 (in, 2H), 7.15 (in, 1 7.24 (in, I1H), 7.41 (in, 3H), 7.45 2H). LCMS: m/z APCI+ 500 [MH]+ 1 H NMR (400MHz, COO13): 831.74-1.85 (in, 2H), 1.98 (in, 2H), 2.70 (in, 1IH), 2.82-2.98 (in, 2H), 3.70-3.88 (in, I1H), 4.40-4.58 (in, 1 5.63 2H), 7.02 (mn, 2H), 7.17 (mn, 1 7.23 (in, 1 7.42 (mn, 3H), 7.49 2H). LCMS: m/z APCI+ 500 [MH] A 2.5 eq. of triethylamine were used instead of polymer supported N-ethyl diisopropylamine.

B 2 eq. of N-methyl morpholine used instead of polymer supported N-ethyl diisopropylamine.

WO 2005/063754 PCT/RIB200n4/0040n59 -146- Examples 404 to 405: 0

N-N

N

N N

CI

A solution of the appropriate acid, ZC0 2 H (1.2 O-benzotriazol-1-yl-N,N,N',N'tetramethyluronium hexafluorophosphate (1.2 N-methylmorpholine (1.4 eq.) and the amine from preparation 12a (1 eq.) in dichloromethane (7-10 mlmmol 1 was stirred at room temperature for 24 hours. The reaction was partitioned between sodium hydroxide solution and dichloromethane, and the layers were then separated. The organic solution was washed with ammonium chloride solution, dried over MgS0 4 and evaporated under reduced pressure. The crude product was purified by column chromatography on silica gel using an elution gradient of dichloromethane:methanol:0.88 ammonia (100:0:0 to 90:10:1) to afford the title compounds.

Ex Data No 404 Z 1 H NMR (400MHz, CDCl 3 8 1.80 2H), 1.98 2H), 2.70 1H), 2.95 2H), 3.78 1H), 4.48 1H), 5.63 2H), 6.99 3H), 7.15 2H), 7.42 2H), 7.50 2H). LCMS: m/z APCI 500 405 Z indazol-3-yl; 1 H NMR (400MHz, DMSO-ds): 5 1.63-1.82 4H), 2.78-2.90 2H), 3.18 1H), 4.45 1H), 4.62 1H), 5.77 2H), 7.18 1H), 7.32-7.40 3H), 7.58 3H), 7.63 2H), 7.90 1H). LCMS: m/z ES 486 [M-H] All of the compounds exemplified above showed a Ki value of less than 500 nM when tested in screen 1.0 (VIA filter binding assay) as described above.

WO 2005/063754-17 PCT/1B2004/004059 Examples of specific compounds are illustrated below: Example No. Ki (nM) 165 2.98 206 2.43 399 1.99 405 1.11

Claims (19)

1. A compound of formula TV'- AQv0v 2 V z (I) Sor a pharmaceutically acceptable derivative thereof, wherein: X represents -[CHJa-R or -{CH]a-O-[CH 2 b-R; a represents a number selected from 0 to 6; b represents a number selected from 0 to 6; R represents H, CF 3 or Het; Het represents a 5- or 6-membered saturated, partially saturated or aromatic heterocyclic ring comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms, optionally substituted with one or more groups independently selected from W; Y and Y' independently represent one or more substituents independently selected from which may be the same or different at each occurrence; c at each occurrence independently represents a number selected from 0 or 1; d at each occurrence independently represents a number selected from 0 to 6; R' at each occurrence independently represents H, halo, CF 3 CN or Het'; Het' at each occurrence independently represents a 5- or 6-membered unsaturated heterocyclic ring, comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms; V represents a direct link or Ring A represents a 5- to 7-membered saturated heterocydic ring comprising either (a) 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom. or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms; ring A being optionally substituted with one or more groups selected from Ct 1 alkyl, phenyl or hydroxy; WO 2005/063754 PCT/IB2004/004059 -149- Q represents a direct link or R 2 represents hydrogen or C 1 alkyl; Z represents -[O]e-[CH2]f-R 3 a phenyl ring (optionally fused to a benzene ring or Het 2 and the group as a whole being optionally substituted with one or more groups independently selected from or Het 3 (optionally fused to an benzene ring or Het 4 and the group as a whole being optionally substituted with one or more groups independently selected from W); R 3 represents C1-. alkyl (optionally substituted with one or more groups independently selected from C3-6 cycloalkyl, Ca-6 cycloalkenyl, phenyl (optionally substituted with one or more groups independently selected from Het 5 or NR 4 R 5 e represents a number selected from 0 or 1; f represents a number selected from 0 to 6; Het 2 and Het 5 independently represent a 5- or 6-membered saturated, partially saturated or aromatic heterocyclic ring, comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms, optionally substituted with one or more groups selected from W; Het 3 represents a 4 to 6-membered saturated, partially saturated or aromatic heterocyclic ring, comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms, optionally substituted with one or more groups selected from W; Het 4 represents a 6-membered aromatic heterocyclic ring, comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms, optionally substituted with one or more groups selected from W; R 4 and R 5 independently represent hydrogen, C1-6 alkyl, Cl.6 alkyloxy, C3-8 cycloalkyl (optionally fused to C3.8 cycloalkyl) or Het 6 R 4 and R 5 being optionally independently substituted with one of more groups selected from Cl. alkyl, C1- alkyloxy, C3.8 cycloalkyl (optionally fused to C3-8 cycloalkyl), or phenyl; Het 6 represents a 5- or 6-membered saturated, partially saturated or aromatic heterocyclic ring, comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms, optionally substituted with one or more groups selected from W; W independently at each occurrence represents halo, [O]gR 6 SO 2 R 6 SR 6 SO 2 NR'R 7 [O]h[CH 2 ]iCF 3 [O]jCHF 2 phenyl (optionally substituted with halo, Cj-6 alkyl or Ci. WO 2005/063754 PCT/IB2004/004059 -150- alkyloxy), CN, phenoxy (optionally substituted with halo), OH, benzyl, NR 6 R 7 NCOR 6 benzyloxy, oxo, CONHR 6 NSO 2 R 6 R 7 COR 6 Cl.alkylene-NCOR 7 Het 7 R 6 represents hydrogen, C 1 .6alkyl, C 3 s.cycloalkyl, C3., cycloalkenyl or Cl.-alkylene- O-Cl-ealkyl; R 7 represents hydrogen or C 1 .6alkyl; i represents a number selected from 0 to 6 h represents a number selected from 0 or 1; g represents a number selected from 0 or 1; j represents a number selected from 0 or 1; Het 7 represents a 5- or 6-membered saturated, partially saturated or aromatic heterocyclic ring, comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms, optionally substituted by R 6 and/or R 7 and/or an oxo group.

2. A compound according to claim 1, wherein X represents -[CH 2 ]a-R.

3. A compound according to claim 2, wherein R represents Het.

4. A compound according to any of claims 1 to 3, wherein Y represents halo. A compound according to any of claims 1 to 4, wherein V represents a direct link.

6. A compound according to any of claims 1 to 5, wherein Q represents a direct link.

7. A compound according to any of claims 1 to 6, wherein ring A represents a six- membered ring.

8. A compound according to any of claims 1 to 7, wherein Z represents phenyl.

9. A compound according to any of claims 1 to 8, wherein Z is substituted with halo. A compound according to claim 1 selected from (3-Chloro-phenyl)-{4-[4-(4-chloro-phenyl)-5-[1,2,3]triazol-2-ylmethyl-4H- [1,2,4]triazol-3-yl]-piperidin-1-yl}-methanone; (4-Chloro-phenyl)-{4-[4-(4-chloro-phenyl)-5-[1,2,3]triazol-2-ylmethyl-4H- [1,2,4]triazol-3-yl]-piperidin-1-yl}-methanone; 151 (5-Chloro-2-fluoro-phenyl)- {4-[4-(4-chloro-phenyl)-5-[ 1,2,3]triazol-2-ylmethyl- 4H-[ 1,2,4]triazol-3-yl]- piperidin- l-yl} -methanone; {4-[4-(4-Chloro-phenyl)-5-[ 1,2,3]triazol-2-yl methyl-4H-[ I ,2,4]triazol-3-yl]- piperidin- Il-yl} -(3,5-di fluoro-phenyl)-methanone; {4-[4-(4-Chloro-phenyl)-5-[ 1,2,3]triazol-2-ylmethyl-4H-[ 1 ,2,4]triazol-3-yl]- piperidin- Il-yl} -(3-fluoro-phenyl)-methanone; f{4-[4-(4-Chloro-phenyl)-5-[ 1,2,3]triazol-2-ylmethyl-4H-[ 1 ,2,4]triazol-3-yl]- piperidin- Il-yl -(2,3-di fluoro-phenyl)-methanone; (3-Chloro-2-fluoro-phenyl)- f{4-[4-(4-chloro-phenyl)-5-[ 1,2,3]triazol-2-ylmethyl- to 4H-[ 1,2,4] triazol-3-yl] -piperi din- Il-yl} -methanone; (3-Chloro-4-fluoro-phenyl)- {4-[4-(4-chloro-phenyl)-5 ,2,3]triazol-2-ylmethyl- 4H-[1 ,2,4]triazol-3-yl]-piperidin-1 -yl)-methanone; {4-[4-(4-Chloro-phenyl)-5-[ 1,2,3]triazol-2-ylmethyl-4H-[ 1 ,2,4]triazol-3-yl]- piperidin- Il-yl} -(4-trifluoromethyl-phenyl)-methanone; f{4-[4-(4-Chloro-phenyl)-5- 1 ,2,3]triazol-2-ylmethyl-411-[ 1 ,2,4]triazol-3-yl]- piperidin- 1 -yl)-(3-trifluoromethyl-phenyl)-methanone; {4-[4-(4-Chloro-phenyl)-5-[ 1,2,3]triazol-2-ylmethyl-4H-[ 1 ,2,4]triazol-3-yl]- piperidin-1I -yl} -(2-trifluoromethyl-phenyl)-methanone; {4-14-(4-chloro-phenyl)-5-[ 1,2,3]triazol-2-yl methyl 4H-( 1,2,4]triazol-3-yl]-piperidin- Il-yl -methanone; {4-[4-(4-Chloro-phenyl)-5-(1I,2,3]triazol-2-ylmethyl-4H-[ 1 ,2,4]triazol-3-yl] piperidin- Il-yl -(4-di fluoromethyl-phenyl)-methanone; [4-(4-Chloro-phenyl)- 1 ,2,3 ]tri azol1-2-ylm ethyl-4H 1 ,2,4]triazol-3-yl- piperidin- Il-yl 1 H-indazol-3-yl)-methanone; and pharmaceutically acceptable derivatives thereof.

11. A compound of formnula N\XN N Z N- tY o Y or a pharmaceutically acceptable derivative thereof, wherein: X represents -[CH 2 ]a-R or -[CH 2 ]aO4CH 2 ]b-R; a represents a number selected from 0 to 6; b represents a number selected from 0 to 6; R\ I B H 765 624speci doc: aak R represents H, CF 3 or Het; Het represents a 5- or 6-membered heterocyclic ring comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms; s Y represents -[O]c-[CH 2 Y' represents 2 c and c' independently represent a number selected from 0 and 1; d and d' independently represent a number selected from 0 to 6; R' and R' independently represent H, halo, CF 3 or Het'; Het' represents a 5- or 6-membered unsaturated heterocyclic ring comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or 1 sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms; Ring A represents a 5- or 6-membered saturated heterocyclic ring comprising at least one nitrogen atom; Z represents -[O]e-[CH 2 ]f-R 2 a phenyl ring (optionally fused to a phenyl ring or a or 6-membered saturated, partially unsaturated or aromatic heterocyclic ring, and/or optionally substituted with one or more groups independently selected from or a 6- membered aromatic heterocyclic ring (optionally fused to an phenyl ring or a 6- membered aromatic heterocyclic ring, and/or optionally substituted with one or more groups independently selected from W); R 2 represents Cl- 6 alkyl or C3-6 cycloalkyl; e represents a number selected from 0 and 1; f represents a number selected from 0 to 6; W represents halo, SO 2 R 3 SR 3 SO2NR 3 R 4 [O]h[CH 2 ]iCF3, OCHF 2 phenyl, CN, phenoxy (optionally substituted with halo), OH, benzyl, NCOR 3 benzyloxy, oxy, CONHR 3 NSO 2 R R 4 COR Ci. 6 alkylene-NCOR Het2; R 3 represents hydrogen, Cl-6alkyl, C3- 6 cycloalkyl or Cl-6alkylene-O-Ci. 6 alkyl; R 4 represents hydrogen or Cl-6alkyl; i represents a number selected from 0 to 6; h represents a number selected from 0 and 1; g represents a number selected from 0 and 1; Het 2 represents a 5- or 6-membered saturated, partially unsaturated or aromatic heterocyclic group comprising either 1 to 4 nitrogen atoms, 1 oxygen atom or sulphur atom, or 1 oxygen atom or 1 sulphur atom and 1 or 2 nitrogen atoms, the heterocyclic group being optionally substituted by R 3 and/or R 4 and/or an oxy group. [R:\I1-II]765624spcci .doc:aak 153

12. A compound of formula as defined in claim 1, substantially as hereinbefore described with reference to any one of the examples.

13. The use of a compound according to any one of claims 1 to 12 as a medicament

14. A method of treatment of a mammal, including a human being, to treat a disorder for which a Via antagonist is indicated, comprising administering to the mammal a therapeutically effective amount of a compound according to any one of claims 1 to 12. A method of treatment of a mammal, including a human being, to treat anxiety, cardiovascular disease (including angina, atherosclerosis, hypertension, heart failure, edema, hypernatremia), dysmenorrhoea (primary and secondary), endometriosis, emesis (including motion sickness), intrauterine growth retardation, inflammation (including rheumatoid arthritis), mittlesmerchz, preclampsia, premature ejaculation, premature (preterm) labour or Raynaud's disease, comprising administering to a mammal is suffering from such a disorder a therapeutically effective amount of a compound according to any one of claims 1 to 12.

16. A method of treatment according to claim 14 or 15, wherein the disorder is dysmenorrhoea (primary or secondary).

17. Use of a compound according to any one of claims 1 to 12 in the manufacture of a medicament for the treatment of a disorder for which a Vla receptor antagonist is indicated.

18. Use of a compound according to any one of claims 1 to 12 in the manufacture of a medicament for the treatment of anxiety, cardiovascular disease (including angina, atherosclerosis, hypertension, heart failure, edema, hypernatremia), dysmenorrhoea (primary and secondary), endometriosis, emesis (including motion sickness), intrauterine growth retardation, inflammation (including rheumatoid arthritis), mittlesmerchz, preclampsia, premature ejaculation, premature (preterm) labour or Raynaud's disease.

19. Use according to claim 17 or 18, wherein the disorder is dysmenorrhoea (primary or secondary).

20. A pharmaceutical formulation comprising a compound according to any one of claims 1 to 12 together with a pharmaceutically acceptable excipient, diluent or carrier.

21. A combination of a compound according to any one of claims 1 to 12, and another pharmacologically active ingredient.

22. A combination according to claim 21, wherein is an oral contraceptive, PDEV inhibitor, COX inhibitor, NO-donor or L-arginine. [R:\LIBHl765624speci.doc:aak 154 (I 23. Use of a combination according to claim 21 or 22, for the manufacture of a 0 medicament for combination therapy by simultaneous, sequential or separate administration, in the treatment of dysmenorrhoea (primary or secondary). C 24. A method of treating dysmenorrhoea comprising administering to a subject in need of such treatment a combination of amounts of and according to claim 21 or 22, which are together effective. A pharmaceutical product containing a combination of and according c to claim 21 or 22, as a combined preparation for simultaneous, separate or sequential use in treating dysmenorrhoea (primary or secondary). 10 26. {4-[4-(4-Chlorophenyl)-5-[1,2,3]triazol-2-ylmethyl-4H-[1,2,4]triazol-3-yl]- piperidin-1-yl}-(3,5-difluoro-phenyl)-methanone. Dated 29 October, 2007 Pfizer Inc. Patent Attorneys for the Applicant/Nominated Person SPRUSON FERGUSON A1121(1006039 11:AAK