WO2001083475A1 - Nuevos compuestos heterociclicos con actividad antiinflamatoria - Google Patents
Nuevos compuestos heterociclicos con actividad antiinflamatoria Download PDFInfo
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- WO2001083475A1 WO2001083475A1 PCT/ES2001/000152 ES0100152W WO0183475A1 WO 2001083475 A1 WO2001083475 A1 WO 2001083475A1 ES 0100152 W ES0100152 W ES 0100152W WO 0183475 A1 WO0183475 A1 WO 0183475A1
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- 0 CC(*)OC(N=C)O Chemical compound CC(*)OC(N=C)O 0.000 description 5
- AXJQTRZVRVJQQR-UHFFFAOYSA-N CC(OC)OC(N=C)O Chemical compound CC(OC)OC(N=C)O AXJQTRZVRVJQQR-UHFFFAOYSA-N 0.000 description 1
- BFWYZZPDZZGSLJ-UHFFFAOYSA-N NCc(cc1)ccc1N Chemical compound NCc(cc1)ccc1N BFWYZZPDZZGSLJ-UHFFFAOYSA-N 0.000 description 1
- FJESDHCKPVKVNQ-UHFFFAOYSA-N NNc(cc1)ccc1S(=O)=O Chemical compound NNc(cc1)ccc1S(=O)=O FJESDHCKPVKVNQ-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/06—Anti-spasmodics, e.g. drugs for colics, esophagic dyskinesia
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P11/00—Drugs for disorders of the respiratory system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P11/00—Drugs for disorders of the respiratory system
- A61P11/06—Antiasthmatics
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P15/00—Drugs for genital or sexual disorders; Contraceptives
- A61P15/06—Antiabortive agents; Labour repressants
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/08—Antiepileptics; Anticonvulsants
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
- A61P29/02—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID] without antiinflammatory effect
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P5/00—Drugs for disorders of the endocrine system
- A61P5/24—Drugs for disorders of the endocrine system of the sex hormones
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
- C07D403/10—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a carbon chain containing aromatic rings
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
- C07D405/10—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing aromatic rings
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/14—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
- C07D413/10—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing aromatic rings
Definitions
- the present invention relates to a new series of heterocyclic compounds with anti-inflammatory activity, as well as to a process for their preparation, to the pharmaceutical compositions containing these compounds and to their use in medicine.
- PGHS prostaglandin G / H synthase
- COX cyclooxygenase
- COX cyclooxygenase
- COX-1 is the constitutive isoform, present in a large number of tissues, but preferably in the stomach, kidney and platelets. Its inhibition is responsible for the gastric and renal effects of NSAIDs.
- COX-2 is an inducible isoform, which is expressed as a consequence of an inflammatory or mitogenic stimulus in a wide variety of tissues such as macrophages, chondrocytes, fibroblasts and endothelial cells.
- the discovery of the inducible soenzyme of PGHS has allowed the synthesis of selective COX-2 inhibitors that presumably improve the gastric tolerability of these drugs, since at inhibit to a lesser extent the constitutive form present in the stomach, reduce the ulcerogenic potency (one of the most characteristic side effects of non-selective inhibitors).
- the present invention describes new cyclooxygenase inhibitors with selectivity by form 2 (COX-2).
- A represents an unsaturated or partially unsaturated 5-membered ring, which may optionally contain 1 to 3 heteroatoms selected from N,
- Ri represents C ⁇ - 8 alkyl, C ⁇ . 8 haloalkyl or -NR 3 R 4 ;
- R 2 represents C 1-4 alkyl, C- ⁇ - 4 haloalkyl, halogen, oxo, cyano, nitro, -CHO,
- R 3 represents hydrogen, C ⁇ - 8 alkyl or arylCo- ⁇ alkyl
- R 4 represents hydrogen, C- ⁇ - 8 alkyl, arCIC- 8 alkyl, -COR 5 or -COOR 5 ;
- R 5 represents C- ⁇ - 8 alkyl or C ⁇ - 8 haloalkyl;
- Xi, X 2 , X3 and X represent all CR 6 , or one, two or three of Xi, X 2 , X3 and X 4 represent nitrogen and the remaining groups of X1, X 2 , X 3 and X 4 represent CR ⁇ , "each independently represents rely hydrogen, halogen, C 1-3 alkyl or C 1-3 alkoxy; the dashed line in ring B represents a single or double bond; Yi and Y 4 independently represent CR7R7 or CO; when the dashed line represents a double bond Y 2 and Y 3 represent CR 8 ; when the dashed line represents a single bond Y 2 and Y 3 represent CR 8 R 8 , and additionally Y 2 can represent CO if Y1 is different from CO, and additionally Y 3 can represent CO if Y 4 is different from CO or Y 3 can represent NR 9 , O or S if Y 4 represents CO; each R 7 independently represents hydrogen, methyl or ethyl;
- Prodrug means any precursor of a compound of formula I that is capable of being transformed in vivo into a compound of formula I.
- Some compounds of formula I may have chiral centers, which may give rise to various stereoisomers.
- the subject of the present invention are each individual stereoisomer as well as mixtures thereof.
- pharmaceutical compositions comprising an effective amount of a compound of formula I or a pharmaceutically acceptable salt, solvate or prodrug thereof and one or more pharmaceutically acceptable excipients.
- the subject of the present invention is also a compound of formula I or a pharmaceutically acceptable salt, solvate or prodrug thereof for the treatment or prevention of diseases mediated by cyclooxygenase, especially cyclooxygenase-2.
- the subject of the present invention is also a compound of formula I or a pharmaceutically acceptable salt, solvate or prodrug thereof for the treatment of inflammation, pain and / or fever.
- the subject of the present invention is also a compound of formula I or a pharmaceutically acceptable salt, solvate or prodrug thereof to inhibit the contraction of smooth musculature induced by prostanoids.
- the subject of the present invention is also a compound of formula I or a pharmaceutically acceptable salt, solvate or prodrug thereof for the treatment or prevention of dysmenorrhea, premature delivery, asthma and bronchitis.
- the subject of the present invention is also a compound of formula I or a pharmaceutically acceptable salt, solvate or prodrug thereof for the treatment or prevention of familial adenomatous polyposis.
- object of the present invention is a compound of formula 1 or a pharmaceutically acceptable salt, solvate or prodrug thereof for the treatment or prevention of cancer, preferably of gastrointestinal cancers, and more preferably of colon cancer.
- the subject of the present invention is also a compound of formula I or a pharmaceutically acceptable salt, solvate or prodrug thereof for the treatment or prevention of cerebral infarctions, epilepsy, and neurodegenerative diseases such as Alzheimer's disease and dementia.
- the object of the present invention is also a method for the treatment or prevention of diseases mediated by cyclooxygenase, especially cyclooxygenase-2, in a mammal in need thereof, especially a human being, comprising administering to said mammal a therapeutically effective amount of a compound of formula I or a pharmaceutically acceptable salt, solvate or prodrug thereof.
- the object of the present invention is also a method for the treatment of inflammation, pain and / or fever in a mammal in need thereof, especially a human being, comprising administering to said mammal a therapeutically effective amount of a compound of formula I or a pharmaceutically acceptable salt, solvate or prodrug thereof.
- the object of the present invention is also a method for inhibiting the contraction of smooth musculature induced by prostanoids in a mammal in need thereof, especially a human being, comprising administering to said mammal a therapeutically effective amount of a compound of formula I or a pharmaceutically acceptable salt, solvate or prodrug thereof.
- the object of the present invention is also a method for the treatment or prevention of dysmenorrhea, premature delivery, asthma and bronchitis in a mammal in need thereof, especially a human being, comprising administering to said mammal a therapeutically effective amount of a compound of formula I or a pharmaceutically acceptable salt, solvate or prodrug thereof.
- the object of the present invention is also a method for the treatment or prevention of familial adenomatous polyposis in a mammal in need thereof, especially a human being, comprising administering to said mammal a therapeutically effective amount of a compound of formula I or a pharmaceutically acceptable salt, solvate or prodrug thereof.
- the object of the present invention is also a method for the treatment or prevention of cancer, preferably of gastrointestinal cancers, and more preferably of colon cancer, in a mammal in need thereof, especially a human being, comprising administering to said mammal a quantity Therapeutically effective of a compound of formula I or a pharmaceutically acceptable salt, solvate or prodrug thereof.
- the object of the present invention is also a method for the treatment or prevention of cerebral infarctions, epilepsy, and neurodegenerative diseases such as Alzheimer's disease and dementia in a mammal in need thereof, especially a human being, comprising administering said mammal a therapeutically effective amount of a compound of formula I or a pharmaceutically acceptable salt, solvate or prodrug thereof.
- Another object of the present invention is to provide a process for preparing a compound of formula I, comprising:
- X 1 , X 2 , X 3 , X 4 , R 1 and A have the meaning described above and Z represents fluorine or, when one of X 2 or X 3 represents nitrogen, Z represents chlorine, with an amine of formula IV
- R 7 , Y2, Y3 and the dashed line have the meaning described above and L represents a good leaving group
- C ⁇ - n alkyl as a group or part of a group, means a linear or branched alkyl group containing 1 an carbon atoms
- n 8
- it includes among others the methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, ⁇ / -butyl, pentyl, isopentyl, neopentyl, hexyl, heptyl and octyl groups.
- a C 0-8 alkyl means that additionally the alkyl group can be absent when it is C 0 alkyl (ie, that a covalent bond is present).
- a halogen radical or its abbreviation halo means fluoro, chloro, bromo or iodo.
- a C ⁇ - group n haloalkyl means a group resulting from the substitution of one or more hydrogen atoms of a C- ⁇ - n alkyl by one or more halogen atoms (i.e. fluoro, chloro, bromo or iodo), which They can be the same or different.
- halogen atoms i.e. fluoro, chloro, bromo or iodo
- a C 1 group - 3 alkoxy means a group resulting from the union of a C 1 group - 3 alkyl an ether oxygen atom and includes methoxy, ethoxy, propoxy and isopropoxy.
- An oxo group represents a carbonyl group.
- a CO group represents a carbonyl group.
- a group arilC ⁇ - n alkyl means a group resulting from the substitution of a hydrogen atom of a C ⁇ - alkyl group n by an aryl group as defined above, i.e. phenyl or naphthyl, which may be optionally substituted as described above .
- n when n is 8, it includes among others the benzyl, 1-phenylethyl, 2-phenylethyl, 3-phenylpropyl, 2- phenylpropyl, 1-phenylpropyl, 4-phenylbutyl, 3-phenylbutyl, 2-phenylbutyl, 1 - groups phenylbutyl, 5- phenylpentyl, 6-phenylhexyl, 7-phenylheptyl and 8-phenyloctyl, where the phenyl group may be optionally substituted.
- An arylC 0 - n alkyl group means that it additionally includes an aryl group when the alkyl group is absent (ie, when it is C 0 alkyl).
- A represents an unsaturated or partially unsaturated five-membered ring that can be carbocyclic. 11 or heterocyclic, in which case it may contain 1 to 3 heteroatoms selected from N, O and S.
- the two aromatic substituents syt that is, the 4- (R 1 SO 2 ) -phenyl group and the aromatic group substituted by para by ring B, they are located on ring atoms of ring A adjacent to each other.
- This ring A may be unsubstituted or may additionally possess one or more, preferably one to three, R 2 substituents, defined above, which may be the same or different and that may be located at any available position of ring A.
- A represents imidazole, pyrazole, furanone, thiophene, isoxazole, oxazole, oxazolone or cyclopentene, preferably midazole, furanone or pyrazole, where A may be optionally substituted by one or more R substituents; and / or Ri represents methyl or amino;
- Xi, X 2 , X3 and X 4 represent all CR 6 or one of X 2 or X 3 represents N and the rest represents CR ⁇ ;
- R 7 and R 8 represent hydrogen; and / or Yi, Y 2 , Y 3 and Y 4 represent CH 2 , the dashed line being a single link, or one of Yt or Y 4 represents CO and the other represents CH 2 and Y 2 and Y 3 represent CH 2 in which case the dashed line represents a single link or Y 2 and Y 3 represent CH in which case the dashed line represents a double bond.
- a preferred class of compounds of the present invention are those compounds of formula I wherein R 1 represents methyl or amino.
- Another preferred class of compounds of the present invention are those compounds of formula I where X 1 , X 2 , X 3 and X all represent CR ⁇ or one of X 2 or X 3 represents N and the rest represents CR 6 .
- Another preferred class of compounds of the present invention are those compounds of formula I wherein A represents imidazole, pyrazole, furanone, thiophene, isoxazole, oxazol, oxazolone or cyclopentene, where A may be optionally substituted by one or more R 2 substituents.
- a more preferred class of compounds of the present invention are those compounds of formula I where:
- A represents imidazole, pyrazole, furanone, thiophene, isoxazole, oxazole, oxazolone or cyclopentene, where A may be optionally substituted by one or more R 2 substituents;
- Ri represents methyl or amino
- Xi, X2, X3 and X4 all represent CR 6 or one of X2 or X 3 represents N and the rest represents CR 6 .
- A represents imidazole, pyrazole, furanone, thiophene, isoxazole, oxazole, oxazolone or cyclopentene, where A may be optionally substituted by one or more R 2 substituents;
- R 1 represents methyl or amino
- X1, X 2 , X 3 and X 4 represent all CR 6 or one of X 2 or X represents N and the rest represents CR 6
- Y represents methyl or amino
- R 7 and R 8 represent hydrogen.
- An especially preferred class of compounds of the present invention are those compounds of formula I where: A represents midazole, pyrazole, furanone, thiophene, isoxazole, oxazole, oxazolone or cyclopentene, where A may be optionally substituted by one or more R 2 substituents ;
- R1 represents methyl or amino
- X 1 , X2, X 3 and X 4 represent all CR 6 or one of X 2 or X 3 represents N and the rest represents CR 6 ;
- Y 1 , Y 2 , Y 3 and Y 4 represent CH 2 , the dashed line being a single link, or one of Y1 or Y represents CO and the other represents CH 2 and Y 2 and Y 3 represent
- A represents imidazole, furanone or pyrazole, where A may be optionally substituted by one or more R 2 substituents;
- Ri represents methyl or amino;
- X-ii X2, X3 and X 4 represent all CR 6 or one of X 2 or X 3 represents N and the rest represents CR 6 ;
- Yii Y 2 , Y3 and Y 4 represent CH 2 , the dashed line being a single link, or one of Y1 or Y 4 represents CO and the other represents CH 2 and Y 2 and Y 3 represent CH 2 in which case the dashed line represents a single link or Y 2 and Y 3 represent CH in which case the dashed line represents a double bond.
- the compounds of the present invention contain one or more basic nitrogen and therefore can form salts with acids, both organic and inorganic, which are also part of the present invention.
- salts include salts with inorganic acids such as hydrochloric acid, hydrobromic acid, iodhydric acid, nitric acid, perchloric acid, sulfuric acid or phosphoric acid; and salts with organic acids, such as methanesulfonic acid, trifluoromethanesulfonic acid, ethanesulfonic acid, benzenesulfonic acid, p-toluenesulfonic acid, fumaric acid, oxalic acid, acetic acid or maleic acid, among others.
- the salts may be prepared by treating the compound of formula I with a sufficient amount of the desired acid or base to give the salt in a conventional manner.
- the compounds of formula I and their salts differ in certain physical properties, such as solubility, but are equivalent for the purposes of the invention.
- Some compounds of the present invention may exist in solvated form, including hydrated forms. In general, solvated forms, with pharmaceutically acceptable solvents such as water, ethanol and the like, are equivalent to the non-solvated form for purposes of the invention.
- Some compounds of the present invention may exist in the form of several diastereoisomers and / or optical isomers. The diastereoisomers can be separated by conventional techniques such as chromatography or fractional crystallization. Optical isomers can be resolved by use of conventional optical resolution techniques, to give optically pure isomers. This resolution can be performed on synthesis intermediates that are chiral or on products of general formula I. Optically pure isomers can also be obtained individually using enantiospecific synthesis. The present invention covers both individual isomers and mixtures (for example racemic mixtures), whether they are obtained by synthesis or by physically mixing them.
- the precise method used for the preparation of a given compound may vary depending on its chemical structure. .
- the compounds of formula I can be prepared by introducing the B ring onto a precursor containing a halogen atom such as fluoro or chloro instead of the B ring or by constructing the B ring from a precursor containing a group amino instead of ring B.
- a halogen atom such as fluoro or chloro
- Y 1 and Y represent CR 7 R 7
- Z represents fluorine or, when one of X 2 or X3 represents nitrogen, Z represents chlorine, and R1, R 7 , X1, X 2 , X3, X4, A, Y 2 , And 3 and the dashed line have the meaning described above.
- the reaction is carried out by heating the mixture of the compounds of formulas II and IV, preferably at a temperature around 150 ° C, optionally in the presence of a suitable solvent such as tetrahydrofuran and optionally under pressure.
- the compounds of formula I where Y. and Y 4 represent CR 7 R 7 can also be obtained by reacting an amine of formula III with a compound of formula V, as shown in the following scheme:
- Y1 and Y 4 represent CR7R7, R1, R7, Xi, X2, X3, X4, A, Y 2 , Y 3 and the dashed line have the meaning described above and L represents a good leaving group, such as a halogen atom .
- the reaction is carried out in the presence of a base such as triethylamine, in a suitable solvent such as acetonitrile, and heating, preferably at reflux.
- Y 1 f Y 2 , Y3, Y4 and the dashed line have the meaning described above and G is a good leaving group such as chlorine or phenoxy.
- the reaction is carried out in the presence of a proton capture amine such as triethylamine or pyridine, within a suitable solvent such as tetrahydrofuran or dimethylformamide, preferably at room temperature. Cyclization can be facilitated by the addition of a base such as fe / Y-potassium butoxide or potassium hydroxide.
- a proton capture amine such as triethylamine or pyridine
- a suitable solvent such as tetrahydrofuran or dimethylformamide
- the reaction is carried out in a suitable solvent such as tetrahydrofuran, dimethylformamide or chloroform at a temperature between ambient and reflux of the solvent. Cyclization can be facilitated by the addition of a base such as potassium tetf-butoxide or hydroxide of potassium.
- the reaction is carried out in the presence of a base such as triethylamine, in a suitable solvent such as toluene or dimethoxyethane, heating, preferably at reflux.
- a base such as triethylamine
- a suitable solvent such as toluene or dimethoxyethane
- reaction is carried out in an acid medium, for example in the presence of hydrochloric acid, in a suitable solvent such as tetrahydrofuran / water mixtures, preferably at room temperature.
- a suitable solvent such as tetrahydrofuran / water mixtures, preferably at room temperature.
- Some compounds of formula I can also be obtained by interconversion from another compound of formula I, for example by introduction of a substituent R 2 on the corresponding compound I where ring A is unsubstituted, or by transformation of a substituent R 2 or R 6 in another group R 2 or R 6 , respectively, in one or several stages, using usual reactions in heterocyclic chemistry, well known to those understood in the subject.
- the salts of the compounds of formula I can be prepared by conventional methods by treatment for example with an acid such as hydrochloric acid, sulfuric acid, nitric acid, oxalic acid or methanesulfonic acid or with a base such as sodium or potassium hydroxide, as described above. .
- the compounds of formula II are generally obtained by ring A formation, using a wide variety of methods depending on their structure.
- R 2 * represents hydrogen or R
- R 1 , R 2 , X., X 2 , X 3 , X 4 and Z have the meaning described above.
- an aldehyde of formula X is condensed with an amine of formula XI, heating at reflux within a suitable solvent such as benzene or toluene in a Dean Stark, to give a compound of formula XII.
- the obtained mine (XII) is reacted with an isocyanide of formula XIII where J represents a good leaving group such as a tosyl or 1H-benzotriazol-1-yl group.
- the reaction is carried out in the presence of a base such as K 2 CO 3 in a suitable solvent such as methanol-dimethoxyethane mixtures, and heating, preferably at reflux.
- the isocyanides of formula XIII are commercial such as tosylmethylisocyanide and 1 H -benzotriazol-1-ylmethylisocyanide or they can be prepared by alkylation of these with an alkyl iodide such as methyl iodide using the method described in the literature (AM van Leusen and cois., Tetrahedron Lett. 1975, 3487-88).
- Aldehydes of formula X and amines of formula XI are commercial, are widely described in the literature or can be prepared by methods analogous to those described from commercial starting products.
- an aldehyde of formula X can be prepared from the corresponding carboxylic acid in a sequence comprising the transformation into an ester, for example ethyl, under the usual conditions of ester formation, subsequent reduction of the ester to alcohol with a suitable ester reducing agent such as lithium aluminum hydride, and finally oxidation of the alcohol to the aldehyde with a suitable oxidizing agent such as dimethyl sulfoxide / oxalyl chloride.
- This general method can be used to prepare imidazoles other than lia starting from appropriate starting compounds.
- An arylbromomethyl ketone of formula XIV is reacted first with an arylacetic acid of formula XV in a suitable solvent such as acetonitrile, dimethyl sulfoxide, dimethoxyethane or diethyl ether and in the presence of a base such as triethylamine or diisopropylethylamine, and then treated with 1, 8- diazabicyclo [5.4.0] undec-7-eno (DBU) to give furanone llb.
- a suitable solvent such as acetonitrile, dimethyl sulfoxide, dimethoxyethane or diethyl ether
- a base such as triethylamine or diisopropylethylamine
- the arylbromomethyl ketone of formula XIV can be easily obtained by halogenation of the corresponding acetophenone according to methods well known in organic chemistry.
- an arylacetic acid of formula XV can be prepared from the corresponding alcohol in a sequence that first comprises the transformation of the hydroxyl into a good leaving group, for example chlorine, by treatment with thionyl chloride, subsequent introduction of a nitrile group by treatment with potassium cyanide in a suitable solvent such as methanol / water mixtures, and finally the hydrolysis of the nitrile group, for example in acidic medium, to give the carboxylic acid.
- the compounds of formula llb can also be prepared by reacting an ⁇ -hydroxy ketone of formula XVI
- an aryl ketone of formula XVII is treated with a base such as CH 3 ONa, NaH or [(CH 3 ) 3 Si] 2 NL, and an acylating agent, for example an ester
- the 1,3-diketone XVIII or its equivalent XVIII ' is reacted with a hydrazine of formula XIX, in the form of a free base or in the form of salt (for example hydrochloride, hydrobromide, oxalate or sulfate) , in an anhydrous protic solvent such as ethanol or acetic acid, and heating, preferably at reflux.
- a hydrazine of formula XIX in the form of a free base or in the form of salt (for example hydrochloride, hydrobromide, oxalate or sulfate)
- an anhydrous protic solvent such as ethanol or acetic acid
- aryl ketones of formula XVII and hydrazines of formula XIX are commercial, are widely described in the literature or can be prepared by methods analogous to those described from commercial starting products.
- This general method of synthesis of pyrazoles can be used to prepare other pyrazoles other than lie starting from starting compounds appropriate.
- an ⁇ -hydroxyketone of formula XVI is reacted with an aryl isocyanate of formula XX, heating to a temperature preferably between 80 and 200 ° C and optionally in the presence of an organic solvent such as toluene or xylene, to give a compound of formula XXI.
- the carbamate obtained (XXI) is treated with anhydrous acetic acid, heating, preferably at reflux temperature, to give the oxazolone lid.
- arylisocyanates of formula XX are commercial, are widely described in the literature or can be prepared by methods analogous to those described from commercial starting products.
- Ri, R 2 * , Xi, X 2 , X3, X4 and Z have the meaning described above and G represents chlorine or bromine.
- an acyl halide of formula XXII is reacted with a halogenated compound of formula XXIII to give a ketone of formula XXIV.
- the reaction is carried out in the presence of a metal such as zinc or magnesium, preferably zinc, in an inert solvent such as 1,2-dimethoxyethane, dioxane, diethyl ether, tetrahydrofuran, dichloromethane, benzene or toluene, preferably at a temperature between room temperature and 50 ° C.
- a suitable catalyst such as Pd (PPh 3 ) 4-
- the ketone obtained (XXIV) is reacted with a carboxylic acid of formula R 2 * COOH, in the presence of lead acetate (IV) or manganese acetate (III), and optionally in the presence of a solvent such as benzene, toluene or xylene, at a temperature preferably included between 50 ° C and reflux to give a ketone of formula XXV.
- the oxazole is prepared by heating the compound of formula XXV in an alkylcarboxylic acid such as acetic acid, formic acid or propionic acid, in the presence of an ammonium salt such as ammonium acetate, ammonium formate or ammonium carbonate , preferably ammonium acetate.
- an alkylcarboxylic acid such as acetic acid, formic acid or propionic acid
- an ammonium salt such as ammonium acetate, ammonium formate or ammonium carbonate , preferably ammonium acetate.
- ketone of formula XXIV can be prepared as shown in the following scheme:
- an acid of formula XV is reacted with an aldehyde of formula XXVI, in the presence of a base such as sodium methoxide and in a suitable solvent such as acetic anhydride.
- the reaction is preferably carried out at the reflux temperature of the solvent.
- the acid obtained (XXVII) is treated, firstly with thionyl chloride, preferably heating at the reflux temperature of the solvent and then with sodium azide in aqueous medium, at a temperature preferably between 0 ° C and room temperature. Finally, it is heated in a mixture of acetic acid and water, preferably at reflux, to give the ketone of formula XXIV.
- Aldehydes of formula XXVI are commercial, are widely described in the literature or can be prepared by methods analogous to those described from commercial starting products, as described above for aldehydes of formula X.
- the -carbonyloxyketone of formula XXV can be prepared from the corresponding ⁇ -hydroxy ketone of formula XXVIII or ⁇ -haloketone of formula XXIX
- Ri, Xi, X 2 , X 3 , X 4 and Z have the meaning described above, by reaction with an acyl halide of formula R 2 * COT (where T, as for compounds of formula XXIX represents a halogen) or with a carboxylic acid of formula R 2 * COOH respectively, in the presence of a base such as pyridine or triethylamine, in an inert solvent such as dichloromethane or chloroform, at a temperature between -10 and 100 ° C.
- a base such as pyridine or triethylamine
- an inert solvent such as dichloromethane or chloroform
- the ⁇ -haloketone of formula XXIX can also be obtained from the corresponding ketone of formula XXIV, by halogenation with bromine, chlorine or N-bromosuccinimide, within a suitable solvent such as 1, 2-dimethoxyethane, dioxane, diethyl ether , tetrahydrofuran, benzene or toluene.
- a suitable solvent such as 1, 2-dimethoxyethane, dioxane, diethyl ether , tetrahydrofuran, benzene or toluene.
- This general method of oxazole synthesis can be used to prepare other oxazoles starting from appropriate starting compounds.
- the ketone of formula XXIV is reacted with hydroxylamine hydrochloride in the presence of a base such as sodium acetate or potassium hydroxide, in an inert solvent such as water, methanol, ethanol, isopropanol, tetrahydrofuran, 1,4-dioxane, diethyl ether, toluene, or mixtures thereof, at a temperature preferably between 50 ° C and reflux, to give an oxime of formula XXX.
- a base such as sodium acetate or potassium hydroxide
- oxime XXX is transformed into a 4,5-dihydroisoxazole of formula XXXI by acylation with an acylating agent such as an acyl halide of formula R 2 * COT or an anhydride of formula (R 2 * CO) 2 O, where R * and T have the meaning described above, in the presence of a base such as butyl lithium, lithium diisopropylamide, lithium bis (trimethylsilyl) amide, bs (trimethylsilyl) sodium amide, or bis (trimethylsilyl) potassium amide.
- an acylating agent such as an acyl halide of formula R 2 * COT or an anhydride of formula (R 2 * CO) 2 O, where R * and T have the meaning described above, in the presence of a base such as butyl lithium, lithium diisopropylamide, lithium bis (trimethylsilyl) amide, bs (trimethylsilyl) sodium amide, or bis (trimethylsily
- the reaction is carried out in the from an inert solvent such as tetrahydrofuran, diethyl ether, 1,2-dimethoxyethane, dioxane, benzene or dichloromethane, at a temperature preferably between -78 ° C and room temperature.
- an inert solvent such as tetrahydrofuran, diethyl ether, 1,2-dimethoxyethane, dioxane, benzene or dichloromethane
- isoxazol llf can be obtained by dehydration of the obtained 4,5-dihydroisoxazole (XXXI), by heating in the presence of an acid such as hydrochloric acid, hydrobromic acid, sulfuric acid, methanesulfonic acid, p-toluenesulfonic acid or polyphosphoric acid in the breast of a suitable solvent such as methanol, ethanol, isopropanol, tetrahydrofuran, diethyl ether, 1,4-dioxane, benzene, toluene, xylene, diglyme, dimethylformamide, dimethisulfoxide or the like, at a temperature preferably between 50 ° C and 100 ° C.
- an acid such as hydrochloric acid, hydrobromic acid, sulfuric acid, methanesulfonic acid, p-toluenesulfonic acid or polyphosphoric acid
- a suitable solvent such as methanol, ethanol, is
- This general method of isoxazole synthesis can be used to prepare other isoxazoles starting from appropriate starting compounds.
- ⁇ -chloroaldehyde of formula XXXII is reacted with a mercaptoacetic acid of formula HS-CHR 2 * -COOH in the presence of a base such as pyridine or triethylamine, and at a temperature between ambient and reflux of the solvent, to give thiophene
- This general method of thiophene synthesis can be used to prepare other thiophenes starting from appropriate starting compounds.
- a cyclopentanone of formula XXXIII is treated with phosphorus pentachloride in a suitable solvent such as toluene, preferably at room temperature, to give the 1-chlorocyclopentene of formula XXXIV.
- the 1-chlorocyclopentene XXXIV is treated with bromine, within the same solvent, at a temperature preferably between -20 and 0 ° C to give the 1,2-dibromocyclopentene of formula XXXV.
- 1,2-dibromocyclopentene XXXV is reacted with an arylboronic acid of formula XXXVI, in the presence of a base such as sodium carbonate, and of a suitable catalyst such as Pd (PPh 3 ) 4 , within a suitable solvent such as mixtures of toluene and ethanol, and heating ,, preferably at reflux, to give a compound of formula XXXVII.
- a base such as sodium carbonate
- a suitable catalyst such as Pd (PPh 3 ) 4
- a suitable solvent such as mixtures of toluene and ethanol
- the cyclopentene of formula llh can also be obtained from the compound of formula XXXVII, by treatment with trimethyl borate in the presence of a base such as butyl lithium, in a suitable solvent such as tetrahydrofuran, at a temperature preferably between -78 ° C and room temperature, and subsequent reaction with a halogenated compound of formula XXXVIII, in the presence of a base such as sodium carbonate and a suitable catalyst such as PdCI 2 (PPh) 2 , within a suitable solvent as mixtures of tetrahydrofuran and water, and heating, preferably at reflux.
- a base such as butyl lithium
- a suitable solvent such as tetrahydrofuran
- Cyclopentanones of formula XXXIII, arylboronic acids of formula XXXVI and compounds of formula XXXVIII are commercial, widely described in the literature or can be prepared by methods analogous to those described from commercial starting products.
- arylboronic acids of formula XXXVI can be obtained according to the procedure described above for the last stage of obtaining compounds of formula llh. This general method of cyclopentene synthesis can be used to prepare other cyclopentenes starting from appropriate starting compounds.
- A, Xi, X 2 , X3, X4 and Z have the meaning described above and R. represents C ⁇ - 8 alkyl or C ⁇ - 8 haloalkyl.
- the oxidation of the thioether to sulfone is carried out with a suitable oxidizing agent such as / 77-chloroperbenzoic acid, magnesium monoperoxyphthalate or Oxone ® in a suitable solvent such as a halogenated hydrocarbon, for example dichloromethane.
- a suitable oxidizing agent such as / 77-chloroperbenzoic acid, magnesium monoperoxyphthalate or Oxone ®
- a suitable solvent such as a halogenated hydrocarbon, for example dichloromethane.
- the chlorosulfonyl derivative of formula XXXXI is obtained by reaction of a compound of formula XXXX with chlorosulfonic acid.
- the chlorosulfonyl derivative XXXXI is then reacted with an amine of the formula NHR3R 4 , to give the corresponding sulfonamide.
- the compounds of formula II where represents -NR 3 R4 can also be obtained from the corresponding methylthioether according to the sequence shown in scheme 10.
- a methylthioether of formula XXXXII is transformed into the corresponding methylsulfoxide XXXXIII by oxidation with a suitable oxidizing agent such as m-chloroperbenzoic acid.
- XXXXIII methylsulfoxide is transformed into the corresponding sodium sulfate XXXXVI by a process that involves treatment with acetic anhydride to give the corresponding acetoxymethylthio derivative XXXXIV, which is oxidized with a suitable oxidizing agent such as magnesium monoperoxyphthalate to give the derivative acetoxymethylsulfonyl XXXXV, which is transformed into the sodium sulfate of formula XXXXVI by treatment with a base, for example sodium hydroxide.
- a base for example sodium hydroxide.
- unsubstituted sulfonamide (-SO 2 NH 2 ) is obtained by reaction with hydroxylamino-O-sulfonic acid in a suitable solvent such as water or water / tetrahydrofuran mixtures, or sulfonamide of formula -S0 2 NR 3 R by chlorination with thionyl chloride followed by reaction with the corresponding amine HNR3R 4 .
- the compounds of the present invention act by inhibiting the enzyme cidooxygenase-2 (COX-2). Therefore, they are useful for the treatment or prevention of inflammation, pain and / or fever associated with a wide spectrum of diseases or pathologies, which include among others: rheumatic fever; symptoms associated with the flu or other viral infections; common cold; lumbar and cervical pains; dysmenorrhea; headache; toothache; myositis; neuralgia; synovitis; bursitis; arthritis, including rheumatoid arthritis and juvenile arthritis; degenerative diseases of the joints, including osteoarthritis; gout and ankylosing spondylitis; lupus erythematosus; tendonitis; sprains, sprains and other similar injuries, such as those produced during sports; pain derived from surgical or dental interventions; and pain associated with cancer.
- COX-2 cidooxygenase-2
- the compounds of the present invention are also useful in the treatment of inflammatory skin diseases, including psoriasis, eczema, burns and dermatitis.
- the compounds of the present invention may also be useful in the treatment of other pathologies mediated by COX-2.
- the compounds of formula I can inhibit cell proliferation and can therefore be useful in the treatment or prevention of familial adenomatous polyposis and cancer, especially cancers that produce prostaglandins or that express cyclooxygenase.
- the compounds of the invention are useful for the treatment, for example, of liver, bladder, pancreas, ovary, prostate, cervix, lung, breast and skin cancer, and especially gastrointestinal cancers such as colon cancer.
- the compounds of the present invention can also inhibit the contraction of smooth musculature induced by prostanoids and thus can be useful in the treatment of dysmenorrhea, premature delivery, asthma and bronchitis.
- Other applications of the compounds of formula I include the treatment or prevention of cerebral infarctions, epilepsy, and neurodegenerative diseases, such as Alzheimer's disease and dementia.
- the compounds of the present invention can be used to treat inflammation in diseases such as vascular diseases, migraine, periarteritis nodosa, thyroiditis, aplastic anemia, Hodgkin's disease, scleroderma, type I diabetes, myasthenia gravis, sarcoidosis, nephrotic syndrome, syndrome of Behcet, polymyositis, hypersensitivity, conjunctivitis, gingivitis and myocardial ischemia.
- diseases such as vascular diseases, migraine, periarteritis nodosa, thyroiditis, aplastic anemia, Hodgkin's disease, scleroderma, type I diabetes, myasthenia gravis, sarcoidosis, nephrotic syndrome, syndrome of Behcet, polymyositis, hypersensitivity, conjunctivitis, gingivitis and myocardial ischemia.
- the compounds of the present invention are useful as an alternative to non-steroidal anti-inflammatory drugs (NSAIDs), especially in those cases where NSAIDs may be contraindicated.
- NSAIDs non-steroidal anti-inflammatory drugs
- the present invention also relates to compositions containing a compound of the present invention, together with an excipient or other auxiliary agents if necessary.
- the compounds of the present invention can be administered in the form of any pharmaceutical formulation, the nature of which, as is well known, will depend on the route of administration and the nature of the pathology to be treated.
- the compositions, solid for oral administration include tablets, powders for extemporaneous suspensions, granules and capsules.
- the active ingredient is mixed with at least one inert diluent such as lactose, starch, mannitol or calcium phosphate; with a binding agent such as starch, gelatin, microcrystalline cellulose or polyvinylpyrrolidone; and with a lubricating agent, such as magnesium stearate, stearic acid or talc.
- the tablets can be coated by known techniques in order to delay their disintegration and absorption in the gastrointestinal tract and thus achieve sustained action for a longer period of time.
- Gastric coatings or Enteric can be made with sugar, gelatin, hydroxypropyl cellulose, acrylic resins, etc. Sustained-release tablets may also be obtained using an excipient that produces regressive osmosis, as is the case with galacturonic acid polymers.
- Preparations for oral use can also be presented as hard capsules of absorbable material, such as gelatin, in which the active ingredient is mixed with an inert solid diluent and lubricating agents, or pasty materials, such as ethoxylated saturated glycerides, which could also have controlled release It is also possible to make soft gelatin capsules, in which the active ingredient is mixed with water or oily medium, for example coconut oil, liquid paraffin, or olive oil.
- water or oily medium for example coconut oil, liquid paraffin, or olive oil.
- Powders and granules can be obtained for the preparation of suspensions by the addition of water, mixing the active ingredient with dispersing or wetting agents; suspending agents, such as sodium carboxymethylcellulose, methylcellulose, hydroxypropylmethylcellulose, sodium alginate, polyvinylpyrrolidine, tragacanth gum, xanthan gum, arabic gum, and one or more preservatives, such as methyl or propyl p-hydroxybenzoate.
- suspending agents such as sodium carboxymethylcellulose, methylcellulose, hydroxypropylmethylcellulose, sodium alginate, polyvinylpyrrolidine, tragacanth gum, xanthan gum, arabic gum, and one or more preservatives, such as methyl or propyl p-hydroxybenzoate.
- suspending agents such as sodium carboxymethylcellulose, methylcellulose, hydroxypropylmethylcellulose, sodium alginate, polyvinylpyrrolidine, tragacanth gum, xanthan gum, arabic gum, and one or more
- Liquid forms for oral administration may include emulsions, solutions, suspensions, syrups and elixirs containing commonly used inert diluents, such as distilled water, ethanol, sorbitol, glycerol or propylene glycols. Such compositions may also contain adjuvants such as wetting, suspending, sweetening, flavoring, preservative and pH regulating agents.
- injectable preparations, according to the present invention, for parenteral administration comprise sterile aqueous or non-aqueous solutions, suspensions or emulsions, in a suitable non-toxic solvent or diluent.
- aqueous solvents or suspending media examples include distilled water for injection, Ringer's solution and isotonic sodium chloride solution.
- non-aqueous solvents or suspending media propylene glycol, polyethylene glycol, vegetable oils such as olive oil, or alcohols such as ethanol can be used.
- These compositions may also contain adjuvants, such as humectants, preservatives, emulsifiers and dispersants. They could be sterilized by any of the methods known or prepared as sterile solid compositions that will be dissolved in water or any other sterile injectable medium immediately before use. It is also possible to start from sterile raw materials and keep them in these conditions during the entire manufacturing process.
- the doses and the dose regimen will depend on the nature and severity of the disease to be treated, the age and body weight of the patient, as well as the route of administration. In general, the daily dose for an adult will be between 1 and 1000 mg per day, which can be administered divided into one or several doses. However, in special cases doses outside these margins may be necessary. A person skilled in the art can easily determine the appropriate dose for each situation.
- Injectable Compound of formula I 100 mg Benzyl alcohol 0.05 mL Propylene glycol 1 mL Water csp 5 mL
- the activity of the compounds of the present invention can be determined using the following test:
- COX-1 and COX-2 Inhibition of cyclooxygenase-1 (COX-1) and cyclooxyqenase-2 (COX-2) activity in human cell lines.
- the inhibition of COX-1 and COX-2 is tested by evaluating the production of PGE 2 after stimulation with arachidonic acid in cell lines expressing human COX-1 (U-937 from human histiocytic lymphoma) and COX- 2 human (143.98.2 from human osteosarcoma) respectively.
- Osteosarcoma cells are grown in 1 mL of DMEM culture medium supplemented with 10% fetal bovine serum, in 24-well plates until confluent.
- U-937 cells are grown in RPMI medium supplemented with 10% fetal bovine serum in bottles.
- the medium is removed and changed to Hepes buffered saline (HBSS) without Ca 2+ / Mg 2+ (2 x 10 5 cells / well).
- HBSS Hepes buffered saline
- the medium is removed and the U-937 cells are resuspended to a final density of 3 x 10 6 cells / mL in HBSS without Ca 2+ / Mg 2+ (1 ml well, in 24-well plates ).
- 1 ⁇ L of the test compound solution dissolved in DMSO or the vehicle is added, and the samples are incubated for 15 min at 37 ° C (5% CO 2 and 95% humidity).
- Arachidonic acid final concentration: 10 ⁇ M is added and the samples are incubated for an additional 10 min.
- MeONa sodium methoxide NEt. 3 : triethylamine
- THF tetrahydrofuran
- TMS tetramethylsilane Reference example 1
- SOCI 2 is heated at reflux under argon for 1 h.
- the solvent is removed and the residue is stirred with a mixture of 8.9 mL of NEt 3 and 130 mL of ethanol for 1.5 h at room temperature.
- the solvent is removed and the residue is partitioned between CH 2 Cl 2 and H 2 O.
- the phases are separated and the aqueous one is extracted with CH 2 CI 2 .
- the organic phases together are dried over MgSO 4 and concentrated, yielding 5.78 g of crude oil which is used in the next stage.
- Example 1 4-Chloro-1- (4-methylsulfonylphenyl) -5- [4- (1-pyrrolidinyl) phenyl] imidazole 0.30 g (0.85 mmol) of 4-chloro-5- (4-fluorophenyl) are introduced into a reactor - 1 - (4-Methylsulfonylphenyl) imidazole (obtained in reference example 2), 10 mL of pyrrolidine and 10 mL of THF, and heated at 150 ° C overnight. Allow to cool to room temperature and concentrate. The residue is treated with a mixture of CHCI3 and H 2 O, the phases are separated and the organic phase is dried over MgSO0 and concentrated.
- Example 3 4-Chloro-5- [4- (3-hydroxypyrrolidin-1-yl) phenyl] -1- (4-methylsulfonylphenyl) imidazole Following a procedure analogous to that described in example 1, but using 3-hydroxypyrrolidine instead of pyrrolidine and in the absence of THF, the title compound of the example is obtained in the form of a white solid (rto: 42%).
- Example 5 4- [4-Chloro-5- [4- (1-pyrrolidinyl) phenyl] imidazol-1-ylbenzenesulfonamide hydrochloride 0.21 g (0.60 mmol) of 4- [4-chloro-5- (1-chloro-5- ( 4- fluorophenyl) imidazol-1-yljbenzenesulfonamide (obtained in reference example 5), 10 mL of pyrrolidine and 10 mL of THF, and heated at 150 ° C overnight. Allow to cool to room temperature and concentrate. The residue is treated with a mixture of CHCI 3 and H 2 O, the aqueous phase being brought to pH 6 by a solution of 1 N HCI.
- the phases are separated, the aqueous one is extracted with CHCI 3 , and the organic phases are dried together. over MgSO 4 , filtered, and concentrated.
- the crude obtained is purified by chromatography on silica-gel, using as eluent mixtures of MeOH / AcOEt / hexane of increasing polarity, obtaining 57 mg of the title compound of the example in the form of a white solid (rto: 22%).
- Example 6 4-Chloro-5- [3-chloro-4- (1-pyrrolidinyl) phenyl] -1- (4-methylsulfoniIphenyl) imidazole
- Example 8 4-Chloro-1- (4-methylsulfonylphenyl) -5- [4- (2-oxo-3-pyrrolin-1-yl) phenol] imdazole
- a flask 0.3 g (0.86 mmol) of 5- (4-aminophenyl) -4-chloro-1 - (4-methylsulfonylphenyl) imidazole (obtained in reference example 3), 0.1 12 g (0.86 mmol) of 2,5-dimethoxy-2,5-dihydrofuran, 0.2 mL of 10% HCI solution, 1 mL of H 2 O and 2 mL of THF, and the mixture is stirred at room temperature for 3 h.
- Example 9 4-Chloro-1- (4-methylsulfonylphenyl) -5- [4- (2-oxooxazolidin-3-yl) phenyl] midazol a) 4-Chloro-5- [4- (2-chloroethoxycarbonylamino) phenyl] -1- (4- methylsulfonylphenyl) imidazole
- the crude is purified by chromatography on silica-gel using as eluent Mixtures of AcOEt / hexane of increasing polarity, to give 230 mg of the title compound of the example as a white solid (rto: 64%).
- Example 11 1- (4-Methylsulfonylphenyl) -5- [6- (1-pyrrolidinyl) -3-pyridyl] imidazoI Following a procedure analogous to that described in section b of reference example 8, but starting from 5- (6-chloro-3-pyridyl) -1- (4- methylsulfonylphenyl) imidazole (obtained in reference example 4), a the title compound of the example in the form of a white solid and with quantitative yield.
- Example 13 3- [4- (2,5-Dioxopyrrolidin-1-yl) phenyl] -4- (4-methylsulfonylphenyl) -5 / -furan-2-one Following a procedure analogous to that described in example 7, but starting of 3- (4-aminophenyl) -4- (4-methylsulfonylphenyl) -5 - / - furan-2-one (obtained in reference example 6), and leaving a reaction time of one night, the compound is obtained example holder in the form of a white solid (rto: 60%).
- Example 14 4- (4-Methylsulfonylphenyl) -3- [4- (2-oxo-3-pyrrolin-1-yl) phenyl] -5H-furan-2-one
- 3- (4-aminophenyl) -4- (4-methylsuIfonylphenyl) -5 - -furan-2-one (obtained in reference example 6), and extending the reaction time to one night, the compound is obtained example holder in the form of a white solid (rto: 13%).
- Example 17 4- (4-Methylsulfonylphenyl) -3- [6- (1-pyrrolidinyl) -3-pyridyl] -5fy-furan-2-one Following a procedure analogous to that described in section b of reference example 6, but using 6- (1-pyrrolidinyl) -3-pyridyl acetic acid (obtained in reference example 8) instead of 4-nitrophenylacetic acid, the title compound of the example is obtained as a yellow solid (rto: 13%).
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Abstract
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Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2001248382A AU2001248382A1 (en) | 2000-04-25 | 2001-04-23 | Novel heterocyclic compounds with anti-inflammatory activity |
| KR1020027014345A KR20020093952A (ko) | 2000-04-25 | 2001-04-23 | 항염증 작용을 갖는 신규한 헤테로시클릭 화합물 |
| MXPA02010595A MXPA02010595A (es) | 2000-04-25 | 2001-04-23 | Nuevos compuestos heterociclicos con actividad antiinflamatoria. |
| EP01921386A EP1281709B1 (en) | 2000-04-25 | 2001-04-23 | Novel heterocyclic compounds with anti-inflammatory activity |
| CA002407418A CA2407418A1 (en) | 2000-04-25 | 2001-04-23 | Novel heterocyclic compounds with anti-inflammatory activity |
| DE60108953T DE60108953D1 (de) | 2000-04-25 | 2001-04-23 | Heterozyklische verbindungen mit entzündungshemmender wirkung |
| BR0110328-8A BR0110328A (pt) | 2000-04-25 | 2001-04-23 | Compostos heterocìclicos com atividade antiinflamatória |
| JP2001580903A JP2003531903A (ja) | 2000-04-25 | 2001-04-23 | 抗炎症作用を有する新規な複素環式化合物 |
| AT01921386T ATE289302T1 (de) | 2000-04-25 | 2001-04-23 | Heterozyklische verbindungen mit entzündungshemmender wirkung |
| NO20025101A NO20025101L (no) | 2000-04-25 | 2002-10-24 | Nye, heterosykliske forbindelser med antiinflammatorisk aktivitet |
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| ESP200001138 | 2000-04-25 | ||
| ES200001138A ES2166710B1 (es) | 2000-04-25 | 2000-04-25 | Nuevos compuestos heterociclicos con actividad antiinflamatoria. |
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| US (1) | US20030114456A1 (es) |
| EP (1) | EP1281709B1 (es) |
| JP (1) | JP2003531903A (es) |
| KR (1) | KR20020093952A (es) |
| AR (1) | AR032451A1 (es) |
| AT (1) | ATE289302T1 (es) |
| AU (1) | AU2001248382A1 (es) |
| BR (1) | BR0110328A (es) |
| CA (1) | CA2407418A1 (es) |
| DE (1) | DE60108953D1 (es) |
| ES (1) | ES2166710B1 (es) |
| MX (1) | MXPA02010595A (es) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003087062A3 (en) * | 2002-04-05 | 2003-11-20 | Cadila Healthcare Ltd | 4-(heterocyclyl)-benzenesulfoximine compounds for the treatment of inflammation |
| WO2004058778A1 (en) | 2002-12-24 | 2004-07-15 | J. Uriach Y Compañia S.A. | New phosphoramide derivatives |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| ATE545228T1 (de) * | 2004-12-23 | 2012-02-15 | St Ericsson Sa | Blinde transportformaterkennung mit niedriger komplexität |
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| WO1994026731A1 (en) * | 1993-05-13 | 1994-11-24 | Merck Frosst Canada Inc. | 2-substituted-3,4-diarylthiophene derivatives as inhibitors of cyclooxygenase |
| WO1995000501A2 (en) * | 1993-06-24 | 1995-01-05 | Merck Frosst Canada Inc. | Phenyl heterocycles as cyclooxygenase-2 inhibitors |
| WO1997027181A1 (en) * | 1996-01-26 | 1997-07-31 | G.D. Searle & Co. | Heterocyclo-substituted imidazoles for the treatment of inflammation |
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| WO1999064415A1 (en) * | 1998-06-11 | 1999-12-16 | Pfizer Pharmaceuticals Inc. | Sulfonylbenzene compounds as anti-inflammatory/analgesic agents |
| WO2000023426A1 (es) * | 1998-10-16 | 2000-04-27 | J. Uriach & Cia, S.A. | Nuevos imidazoles con actividad antiinflamatoria |
| WO2000066562A1 (en) * | 1999-05-03 | 2000-11-09 | Dr. Reddy's Research Foundation | Pyrazoles having antiinflammatory activity |
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| WO2001017996A1 (en) * | 1999-09-08 | 2001-03-15 | Merck Frosst Canada & Co. | 1,2,3-thiadiazoles and their use as cox-2 inhibitors |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6133292A (en) * | 1997-10-30 | 2000-10-17 | Merck Frosst Canada & Co. | Diaryl-5-alkyl-5-methyl-2-(5H)-furanones as selective cyclooxygenase-2-inhibitors |
-
2000
- 2000-04-25 ES ES200001138A patent/ES2166710B1/es not_active Expired - Fee Related
-
2001
- 2001-04-18 AR ARP010101803A patent/AR032451A1/es unknown
- 2001-04-23 DE DE60108953T patent/DE60108953D1/de not_active Expired - Lifetime
- 2001-04-23 EP EP01921386A patent/EP1281709B1/en not_active Expired - Lifetime
- 2001-04-23 MX MXPA02010595A patent/MXPA02010595A/es unknown
- 2001-04-23 BR BR0110328-8A patent/BR0110328A/pt not_active IP Right Cessation
- 2001-04-23 KR KR1020027014345A patent/KR20020093952A/ko not_active Withdrawn
- 2001-04-23 AU AU2001248382A patent/AU2001248382A1/en not_active Abandoned
- 2001-04-23 JP JP2001580903A patent/JP2003531903A/ja active Pending
- 2001-04-23 US US10/258,471 patent/US20030114456A1/en not_active Abandoned
- 2001-04-23 WO PCT/ES2001/000152 patent/WO2001083475A1/es not_active Ceased
- 2001-04-23 CA CA002407418A patent/CA2407418A1/en not_active Abandoned
- 2001-04-23 AT AT01921386T patent/ATE289302T1/de not_active IP Right Cessation
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| WO1997027181A1 (en) * | 1996-01-26 | 1997-07-31 | G.D. Searle & Co. | Heterocyclo-substituted imidazoles for the treatment of inflammation |
| WO1997038986A1 (en) * | 1996-04-12 | 1997-10-23 | G.D. Searle & Co. | Substituted benzenesulfonamide derivatives as prodrugs of cox-2 inhibitors |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003087062A3 (en) * | 2002-04-05 | 2003-11-20 | Cadila Healthcare Ltd | 4-(heterocyclyl)-benzenesulfoximine compounds for the treatment of inflammation |
| AU2003238667B2 (en) * | 2002-04-05 | 2006-07-20 | Cadila Healthcare Limited | 4-(heterocyclyl)-benzenesulfoximine compounds for the treatment of inflammation |
| EA008303B1 (ru) * | 2002-04-05 | 2007-04-27 | Кадила Хелзкэр Лимитед | Гетероциклические соединения, способы их получения и фармацевтические композиции, содержащие эти соединения, и их использование в медицине |
| CN100351237C (zh) * | 2002-04-05 | 2007-11-28 | 卡地拉健康护理有限公司 | 杂环化合物及其制备方法和含该化合物的药物组合物以及其在医药中的用途 |
| US7348342B2 (en) | 2002-04-05 | 2008-03-25 | Cadila Healthcare Limited | Heterocyclic compounds process for their preparation and pharmaceutical compositions containing them and their use in medicine |
| WO2004058778A1 (en) | 2002-12-24 | 2004-07-15 | J. Uriach Y Compañia S.A. | New phosphoramide derivatives |
Also Published As
| Publication number | Publication date |
|---|---|
| DE60108953D1 (de) | 2005-03-24 |
| ATE289302T1 (de) | 2005-03-15 |
| KR20020093952A (ko) | 2002-12-16 |
| CA2407418A1 (en) | 2001-11-08 |
| AU2001248382A1 (en) | 2001-11-12 |
| US20030114456A1 (en) | 2003-06-19 |
| MXPA02010595A (es) | 2003-03-10 |
| AR032451A1 (es) | 2003-11-12 |
| EP1281709A1 (en) | 2003-02-05 |
| BR0110328A (pt) | 2003-01-07 |
| EP1281709B1 (en) | 2005-02-16 |
| NO20025101L (no) | 2002-12-20 |
| ES2166710B1 (es) | 2004-10-16 |
| ES2166710A1 (es) | 2003-12-01 |
| NO20025101D0 (no) | 2002-10-24 |
| JP2003531903A (ja) | 2003-10-28 |
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