HK1262810A1

HK1262810A1 - Pyrazol compounds as eaat3 inhibitors

Info

Publication number: HK1262810A1
Application number: HK19119599.9A
Authority: HK
Inventors: 马里乌斯·赫纳; 于尔根·维希曼
Original assignee: 豪夫迈·罗氏有限公司
Priority date: 2016-05-27
Filing date: 2017-05-24
Publication date: 2020-01-17

Description

Pyrazole compounds as EAAT3 inhibitors

The present invention relates to organic compounds useful for the treatment or prevention in a mammal, and in particular to EAAT3 inhibitors for the treatment or prevention of EAAT3 mediated diseases, such as psychotic disorders such as schizophrenia, bipolar disorder, obsessive-compulsive disorder or autism spectrum disorder.

The present invention provides novel compounds of formula (I)

Wherein

R¹' is methyl;

R¹selected from the group consisting of:

i) a methyl group, a hydroxyl group, a carboxyl group,

ii) an ethyl group, and (iii) a vinyl group,

iii) a trifluoromethyl group, a pharmaceutically acceptable salt thereof,

iv) a hydroxy-methyl group, and (iii) a hydroxy-methyl group,

v) cyclopropyl, and

vi) a cyano group;

or R¹' and R¹Together with the carbon atom to which they are attached form a 1, 1-dioxo-tetrahydro-thiophen-3-yl group;

R²selected from the group consisting of:

i) the hydrogen is used as a carrier gas for the reaction,

ii) a methyl group, and (iii) a methyl group,

iii) an ethyl group, and (ii) a vinyl group,

iv) an isopropyl group, and (iv) a methyl group,

v) a tertiary butyl group, and a tertiary butyl group,

vi) a cyclopropyl group, in which the alkyl group is,

vii) cyclopropylmethyl, and

viii) a hydroxymethyl group;

R³selected from the group consisting of:

i) the presence of hydrogen in the presence of hydrogen,

ii) a chlorine (Cl) in the reaction mixture,

iii) a fluorine-containing compound having a fluorine-containing group,

iv) a methyl group, and (iii) a methyl group,

v) an isopropyl group, and (iv) a methyl group,

vi) a methoxy group,

vii) a cyano group, in which,

viii) cyclopropyl, and

ix) trifluoromethyl;

R⁴selected from the group consisting of:

i) the hydrogen is used as a carrier gas for the reaction,

ii) a chlorine (Cl) in the reaction mixture,

iii) fluorine, and

iv) methyl;

or a pharmaceutically acceptable salt thereof.

It has been surprisingly found that compounds of formula I are EAAT3 inhibitors.

Excitatory amino acid transporter 3(EAAT3), also known in human studies as solute carrier family 1, member 1 (systematic gene name: SLC1a1), and in rodents as excitatory amino acid carrier 1(EAAC1), is a high affinity anionic amino acid transporter found throughout the cortex and in neurons in the hippocampus, basal ganglia (striatum, thalamus) and olfactory bulb. The role of EAAT3 is to buffer local glutamate concentrations in excitatory synapses (e.g., in hippocampus) and to modulate differential recruitment of glutamate receptor subtypes at extrasynaptic sites. Furthermore, EAAT3 is believed to be involved in promoting GABA and glutathione biosynthesis. EAAT3 is a member of the EAAT family that regulates glutamate uptake into neurons and glial cells of the mammalian CNS. Two transporters, EAAT1 and EAAT2, expressed primarily in glia are critical for glutamate homeostasis in the adult mammalian brain and for rapid clearance of glutamate from the synaptic cleft. Three neuronal transporters (EAAT3, EAAT4 and EAAT5) appear to have additional functions in regulating and managing cellular excitability, with EAAT3 being abundantly expressed throughout the CNS (EAAT4 is unique to Purkinje cells of the cerebellum, while EAAT5 is expressed in rod photoreceptor and bipolar cells of the retina).

EAAT is assembled as a trimer, and the presence of multiple isoforms raises the question of whether a particular isoform can form a hetero-oligomer. In the mammalian brain, the specificity of excitatory synaptic transmission depends on the rapid diffusion of glutamate out of the active synapses and the potent glutamate transporter uptake capacity in astrocytes. The extent to which neuronal glutamate transporters affect glutamate longevity in the extracellular space is unclear, but is believed to be weak. EAAT3, the major neuronal glutamate transporter at the excitatory synapse in hippocampal region CA1, buffers glutamate released during synaptic events and prolongs the time course of its clearance by astrocytes. EAAT3 does not significantly alter the activation of receptors in the synaptic cleft. Rather, it reduces the recruitment of NR 2B-containing NMDAR around/outside the synapse, thereby facilitating long-term potentiation leading to short bursts by high frequency stimulation. Specific EAAT3 inhibitors are capable of locally and specifically enhancing specific synapses.

Obsessive Compulsive Disorder (OCD) is one of the most common psychiatric disorders (prevalence 1-3%) and is at least as common as schizophrenia and bipolar disorder. In the united states, one in 50 of the adults have OCD. OCD affects children and adolescents as well as adults. About one third to one half of adults with OCD report childhood onset of the disease, and the disease is typically chronic. Treatment consisted primarily of serotonergic TCA (clomipramine) or SSRI in combination with cognitive-behavioral therapy (CBT). Overall, the response to these interventions has some, but limited benefits (about equivalent to antidepressant response in MDD), and given the chronicity of OCD, there is still a high unmet medical need. OCD has been linked to serotonin and glutamate abnormalities. The hypothesis of glutamate signaling dysfunction in OCD is based on findings from neuroimaging, animal models, positional cloning, and therapeutic studies.

Obsessive symptoms in OCD and criteria for core autism spectrum disorders: "restricted, repetitive patterns of behavior, interest or activity" (abstracted from the proposed DSM-5 revisions) have considerable phenomenological, epidemiological and possibly (pro) -pathophysiological overlap. As a support for this concept, human genetic studies have linked both the serotonin transporter and EAAT3(SLC1a1) genes to Autism Spectrum Disorder (ASD) or rigid compulsive behavior in ASD and OCD.

In addition, obsessive-compulsive symptoms caused by antipsychotics in patients with schizophrenic bipolar disorder have been linked to EAAT3(SLC1a1) gene variants. Post mortem brain studies showed that both typical and atypical antipsychotics reduced EAAT3, suggesting that this transporter is involved in neuroleptic mechanisms beyond dopamine and serotonin regulation. In addition, genetic variation of the human gene EAAT3(SLC1a1) has been correlated with antipsychotic drug response.

There is convergent evidence from neurobiological data, human genetics, imaging studies and experimental treatments, i.e. EAAT3 is a key pathophysiological element in OCD and rigid compulsive behaviour in autism and in schizophrenia.

-Curr.Opin.Pharmacol.20，116-123，2015

-J.Neurosci.，32，2552-2563，2012

-J.Neurosci 29，14581-14595，2009

-Arch.Gen.Psychiatry，66，408-416，2009

-Pharmacol.Ther.107，271-285，2005

-J.Neurochem.98，1007-1018，2006

-Nat.Neurosci.，9，119-126，2006

Objects of the present invention are the compounds of formula (I) and the aforementioned salts and esters thereof and their use as therapeutically active substances, processes for the manufacture of said compounds, intermediates, pharmaceutical compositions, medicaments containing said compounds, pharmaceutically acceptable salts or esters thereof, the use of said compounds, salts or esters for the treatment or prevention of disorders or conditions associated with the activity of EAAT3, in particular the treatment or prevention of psychotic disorders such as schizophrenia, bipolar disorder, obsessive-compulsive disorder or autism spectrum disorder, and the use of said compounds, salts or esters for the manufacture of medicaments for the treatment or prevention of psychotic disorders such as schizophrenia, bipolar disorder, obsessive-compulsive disorder or autism spectrum disorder.

The term "pharmaceutically acceptable salts" refers to those salts that retain the biological effectiveness and properties of the free base or free acid, which are not biologically or otherwise undesirable. These salts are formed with inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid and the like, particularly hydrochloric acid, and organic acids such as acetic acid, propionic acid, glycolic acid, pyruvic acid, oxalic acid, maleic acid, malonic acid, succinic acid, fumaric acid, tartaric acid, citric acid, benzoic acid, cinnamic acid, mandelic acid, methanesulfonic acid, ethanesulfonic acid, p-toluenesulfonic acid, salicylic acid, N-acetylcysteine and the like. In addition, these salts can be prepared by adding an inorganic base or an organic base to the free acid. Salts derived from inorganic bases include, but are not limited to, sodium, potassium, lithium, ammonium, calcium, magnesium salts, and the like. Salts derived from organic bases include, but are not limited to, the following: primary, secondary and tertiary amines, substituted amines including naturally occurring substituted amines, cyclic amines and basic ion exchange resins such as isopropylamine, trimethylamine, diethylamine, triethylamine, tripropylamine, ethanolamine, lysine, arginine, N-ethylpiperidine, piperidine, polyimine resins and the like. Particular pharmaceutically acceptable salts of the compounds of formula (I) are the hydrochloride, mesylate and citrate salts.

By "pharmaceutically acceptable ester" is meant that the compound of formula (I) may be derivatised at functional groups to provide derivatives which are capable of conversion back to the parent compound in vivo. Examples of such compounds include physiologically acceptable and metabolically labile ester derivatives such as methoxymethyl, methylthiomethyl and pivaloyloxymethyl esters. In addition, any physiologically acceptable equivalent of a compound of formula (I) that is capable of producing the parent compound of formula (I) in vivo, like the metabolically labile ester, is within the scope of the invention.

The term "protecting group" (PG) denotes a group in synthetic chemistry in the sense generally associated therewith that selectively blocks one reactive site in a polyfunctional compound so that a chemical reaction can be selectively carried out at another unprotected reactive site. The protecting group may be removed at an appropriate point. Exemplary protecting groups are amino-protecting groups, carboxy-protecting groups or hydroxy-protecting groups. Particular protecting groups are the tert-butoxycarbonyl (Boc), benzoylcarbonyl (Cbz), fluorenylmethoxycarbonyl (Fmoc) and benzyl (Bn) groups. Further particular protecting groups are the tert-butoxycarbonyl (Boc) and fluorenylmethoxycarbonyl (Fmoc) groups. More particular protecting groups are tert-butoxycarbonyl (Boc) groups.

The abbreviation uM means micromolar and is equivalent to the symbol μ M.

The abbreviation uL means microliter and is equivalent to the symbol μ L.

The abbreviation ug means microgram and is equivalent to the symbol ug.

The compounds of formula (I) may contain multiple asymmetric centers and may exist in the form of optically pure enantiomers, mixtures of enantiomers such as, for example, racemic mixtures, optically pure diastereomers, mixtures of diastereomers, diastereomeric racemic mixtures or mixtures of diastereomeric racemic mixtures.

According to the Cahn-Ingold-Prelog convention, asymmetric carbon atoms may be in either the "R" or "S" configuration.

Furthermore, an embodiment of the present invention is a compound according to formula (I) as described herein and pharmaceutically acceptable salts or esters thereof, in particular a compound of formula (I) as described herein and pharmaceutically acceptable salts thereof, more in particular a compound of formula (I) as described herein.

A particular embodiment of the present invention provides a compound according to formula (I) as described herein,wherein R is¹Is methyl

A particular embodiment of the invention provides a compound according to formula (I) as described herein, wherein R2 is selected from the group consisting of:

i) a methyl group, a hydroxyl group, a carboxyl group,

ii) an ethyl group, and (iii) a vinyl group,

iii) an isopropyl group, in which the alkyl group is a methyl group,

iv) a tertiary butyl group, and (iii),

v) cyclopropyl, and

vi) cyclopropylmethyl.

A particular embodiment of the present invention provides a compound according to formula (I) as described herein, wherein R³Selected from the group consisting of:

i) the presence of hydrogen in the presence of hydrogen,

ii) a source of chlorine, and (iii),

iii) a fluorine-containing compound having a fluorine-containing group,

iv) methyl group

v) an isopropyl group, and (iv) a salt thereof,

vi) a methoxy group,

vii) a cyano group, in which,

viii) cyclopropyl, and

ix) trifluoromethyl.

A further particular embodiment of the present invention provides a compound according to formula (I) as described herein, wherein R³Selected from the group consisting of:

i) the chlorine is added to the reaction mixture in the presence of chlorine,

ii) a fluorine-containing compound having a fluorine-containing group,

iii) cyano, and

iv) a trifluoromethyl group.

A particular embodiment of the invention provides a compound according to formula (I) as described herein, wherein R is⁴Is H.

A more particular embodiment of the invention provides a compound according to formula (I) as described herein, wherein

R¹' and R¹Are all methyl;

R²selected from the group consisting of:

i) the methyl group is a group selected from the group consisting of,

ii) an ethyl group, and (iii) a vinyl group,

iii) an isopropyl group, in which the alkyl group is a methyl group,

iv) a tertiary butyl group, and (iii),

v) cyclopropyl, and

vi) a cyclopropylmethyl group;

R³selected from the group consisting of:

i) the presence of hydrogen in the presence of hydrogen,

ii) a chlorine (Cl) in the reaction mixture,

iii) a fluorine-containing compound having a fluorine-containing group,

iv) methyl group

v) an isopropyl group, and (iv) a salt thereof,

vi) a methoxy group,

vii) cyano, and

viii) cyclopropyl;

R⁴Selected from the group consisting of:

i) the hydrogen is used as a carrier gas for the reaction,

ii) a source of chlorine, and (iii),

iii) fluorine, and

iv) methyl;

or a pharmaceutically acceptable salt thereof.

Particular examples of compounds of formula (I) as described herein are selected from

N-tert-butyl-3- (4-chlorophenyl) -5- (2-methylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-fluorophenyl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- [4- (trifluoromethyl) phenyl ] benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-chlorophenyl) benzamide;

n-tert-butyl-3- (4-chlorophenyl) -5- (2-propan-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (4-fluorophenyl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (2-prop-2-ylpyrazol-3-yl) -5- [4- (trifluoromethyl) phenyl ] benzamide;

n-tert-butyl-3- (3, 4-difluorophenyl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (4-methylphenyl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (4-prop-2-ylphenyl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (4-methoxyphenyl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (3-chloro-4-fluorophenyl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

N-tert-butyl-3-phenyl-5- (2-propan-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (4-cyclopropylphenyl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (4-fluoro-3-methylphenyl) -5- (2-propan-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (4-chloro-3-fluorophenyl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (4-cyanophenyl) -5- (2-propan-2-ylpyrazol-3-yl) benzamide;

3- (2-tert-butylpyrazol-3-yl) -5- (4-chlorophenyl) -N- (2-methylbut-2-yl) benzamide;

3- (4-chlorophenyl) -N- (2-methylbut-2-yl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (3-fluoro-4-methylphenyl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

3- (4-chlorophenyl) -N- (2-cyanoprop-2-yl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

3- (2-tert-butylpyrazol-3-yl) -5- (4-chlorophenyl) -N- (2-cyanopropan-2-yl) benzamide;

n-tert-butyl-3- (2-cyclopropylpyrazol-3-yl) -5- (4-fluorophenyl) benzamide;

n-tert-butyl-3- (4-chlorophenyl) -5- (2-ethylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (4-chlorophenyl) -5- [2- (cyclopropylmethyl) pyrazol-3-yl ] benzamide;

3- (4-chlorophenyl) -N- (2-cyclopropylpropan-2-yl) -5- (2-propan-2-ylpyrazol-3-yl) benzamide;

N-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-fluoro-3-methylphenyl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5-phenylbenzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (3-fluoro-4-methylphenyl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-methylphenyl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-methoxyphenyl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (3-chloro-4-fluorophenyl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-chloro-3-fluorophenyl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-propan-2-ylphenyl) benzamide;

3- (2-tert-butylpyrazol-3-yl) -5- (4-chlorophenyl) -N- (2-cyclopropylpropan-2-yl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (3, 4-difluorophenyl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-cyclopropylphenyl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-cyanophenyl) benzamide;

3- (4-chlorophenyl) -N- (1-hydroxy-2-methylpropan-2-yl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

3- (4-chlorophenyl) -5- (2-prop-2-ylpyrazol-3-yl) -N- (1, 1, 1-trifluoro-2-methylpropan-2-yl) benzamide;

3- (2-tert-butylpyrazol-3-yl) -5- (4-chlorophenyl) -N- (1-hydroxy-2-methylpropan-2-yl) benzamide;

3- (2-tert-butylpyrazol-3-yl) -5- (4-chlorophenyl) -N- (1, 1, 1-trifluoro-2-methylpropan-2-yl) benzamide;

n-tert-butyl-3- (2-cyclopropylpyrazol-3-yl) -5- [4- (trifluoromethyl) phenyl ] benzamide;

n-tert-butyl-3- [2- (cyclopropylmethyl) pyrazol-3-yl ] -5- [4- (trifluoromethyl) phenyl ] benzamide;

n-tert-butyl-3- (4-chlorophenyl) -5- (2-cyclopropylpyrazol-3-yl) benzamide;

n-tert-butyl-3- [2- (cyclopropylmethyl) pyrazol-3-yl ] -5- (4-fluorophenyl) benzamide;

n-tert-butyl-3- (2-ethylpyrazol-3-yl) -5- (4-fluorophenyl) benzamide;

n-tert-butyl-3- (2-ethylpyrazol-3-yl) -5- [4- (trifluoromethyl) phenyl ] benzamide;

and pharmaceutically acceptable salts thereof.

Further particular examples of compounds of formula (I) as described herein are selected from

N-tert-butyl-3- (4-chlorophenyl) -5- (2-methylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-fluorophenyl) benzamide;

n-tert-butyl-3- (4-chlorophenyl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (4-fluorophenyl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

N-tert-butyl-3- (2-propan-2-ylpyrazol-3-yl) -5- [4- (trifluoromethyl) phenyl ] benzamide;

n-tert-butyl-3- (2-cyclopropylpyrazol-3-yl) -5- (4-fluorophenyl) benzamide;

n-tert-butyl-3- (4-chlorophenyl) -5- (2-ethylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-cyanophenyl) benzamide;

n-tert-butyl-3- (4-chlorophenyl) -5- (2-cyclopropylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (2-ethylpyrazol-3-yl) -5- (4-fluorophenyl) benzamide;

and pharmaceutically acceptable salts thereof.

A process for the manufacture of a compound of formula (I) as described herein is an object of the present invention.

The preparation of the compounds of formula (I) according to the invention can be carried out in a sequential or convergent synthetic route. The synthesis of the present invention is shown in the following general scheme. The techniques required to carry out the reaction and to purify the product produced are known to those skilled in the art. In case a mixture of enantiomers or diastereomers is formed during the reaction, these enantiomers or diastereomers can be separated by methods described herein or known to the person skilled in the art, such as e.g. (chiral) chromatography or crystallization. The substituents and indices used in the following description of the process have the meanings given herein.

In general, pyrazole derivative I can be prepared from intermediate iodo derivative II by coupling reaction with commercially available pyrazole boronic acid III.

Or by coupling of iodo derivative IV with commercially available boronic acid derivative V.

Iodo derivative II can be prepared starting from commercially available 3-iodo-5-nitrobenzoic acid VI. Amide formation with a commercially available amine VII using standard conditions gives an amide VIII which can be coupled with a commercially available boronic acid derivative V to give a nitro compound IX which can be reduced with tin (II) chloride to give an aniline derivative X. The well-known conversion of aniline to iodine gives the iodo building block II.

The synthesis of iodo derivative IV can start from iodo derivative VIII described above, which can be converted to pyrazole derivative XI by coupling reaction with commercially available pyrazole boronic acid III. Reduction of the nitro group to aniline as described above gives the derivative XII. Iodo derivative IV can be prepared from this derivative XII by the known conversion of aniline to iodine.

An alternative route for the synthesis of pyrazole derivatives I can start from commercially available 3-iodo-5-nitrobenzoic acid VI. Coupling reactions with commercially available boronic acid derivatives V yield nitro derivatives XII, which can be converted to iodo derivatives XIV by reduction of the nitro group followed by the well-known conversion of aniline to iodine and subsequent ester formation as described above. The iodo derivative XIV can be converted to the boronic ester derivative XV by known methods. Coupling reaction with commercially available bromopyrazole derivative XVI, followed by ester hydrolysis by known methods yields acid derivative XVII. Amide formation with commercially available amines VII using standard conditions gives the final amides I.

The final compound I can also be prepared by coupling reaction of a commercially available bromopyrazole derivative XVI with a boronic ester XVIII, which can be prepared from iodo building block II by known methods.

Furthermore, an embodiment of the present invention is a process for the preparation of a compound of formula (I) as defined above, said process comprising a) reacting a compound of formula (II) in the presence of a compound of formula (III), wherein R is¹、R¹’、R²、R³And R⁴As defined in any one of claims 1 to 9;

or alternatively

b) Of the formula (IV)The compound is reacted in the presence of a compound of formula (V), wherein R¹、R¹’、R²、R³And R⁴As defined herein;

or alternatively

c) Reacting a compound of formula (XVII) in the presence of a compound of formula (VII) wherein R¹、R¹’、R²、R³And R⁴As defined in any one of claims 1 to 9;

or

d) Reacting a compound of formula (XVIII) in the presence of a compound of formula (XVI), wherein R¹、R¹’、R²、R³And R⁴As defined in any one of claims 1 to 9.

Furthermore, an object of the present invention is a compound according to formula (I) as described herein for use as therapeutically active substance.

Also, an object of the present invention is a pharmaceutical composition comprising a compound according to formula (I) as described herein and a therapeutically inert carrier.

A particular embodiment of the invention is a compound according to formula (I) as described herein for use in the treatment or prevention of an ophthalmic disorder, in particular glaucoma.

The invention also relates to the use of a compound according to formula (I) as described herein for the preparation of a medicament for the treatment or prevention of an ophthalmic disorder, in particular glaucoma.

Furthermore, an object of the present invention is a method for the treatment or prevention of ophthalmic disorders, in particular glaucoma, comprising administering an effective amount of a compound according to formula (I) as described herein.

Further, an embodiment of the invention is a compound of formula (I) as described herein, made according to any one of the methods.

Measurement procedure

FLIPR Membrane Potential (FMP) assay

HEK-293 cells stably expressing human EAAT3 were seeded at 55000 cells/well in growth medium (DMEM without glutamate (Invitrogen 11960-. After 24h, the growth medium was removed and 100. mu.l/well of Krebs buffer (140mM NaCl, 4.7mM KCl, 2.5mM CaCl) was added ₂，1.2mM MgCl₂11mM HEPES, 10mM D-glucose, pH 7.4). Cells were then loaded by adding 100 μ l/well FMP assay dye (FLIPR membrane potential assay reagent, Molecular Devices). The 96-well plate was then incubated at 37 ℃ for 1 h. Depolarization of the cell will allow more dye to enter the cell where it will bind to intracellular proteins and lipids and cause an increase in the fluorescent signal. Antagonist efficacy in human EAAT3 was determined by using L-glutamate as an agonist at a concentration that produced an 80% maximal response. Antagonists were administered 15min before agonist L-glutamate. The assay was performed at room temperature and measured by using a fluorometric Imaging Plate Reader (FLIPR, Molecular Devices) and a #2 filter. The response was measured as the peak increase of fluorescence minus the basal (i.e., fluorescence without addition of L-glutamate). Kb uses the Cheng-Prusoff equation: kb ═ IC₅₀/[1+(A/EC₅₀)]Determination of, wherein IC₅₀Is the concentration of antagonist that produces 50% inhibition, A is the determination of IC₅₀Concentration of agonist aimed at (in EC)₈₀) And EC₅₀Is the concentration of agonist that produces 50% inhibition.

The compounds of formula (I) and pharmaceutically acceptable salts thereof may be used as medicaments (e.g. in the form of pharmaceutical preparations). Pharmaceutical formulations may be administered internally, such as orally (e.g., in the form of tablets, coated tablets, dragees, hard and soft gelatin capsules, solutions, emulsions or suspensions), nasally (e.g., in the form of nasal sprays), rectally (e.g., in the form of suppositories), or topically ocularly (e.g., in the form of solutions, ointments, gels, or water-soluble polymer inserts). However, administration can also be effected parenterally, such as intramuscularly, intravenously or intraocularly (e.g., in the form of a sterile injectable solution).

The compounds of formula (I) and their pharmaceutically acceptable salts can be processed with pharmaceutically inert, inorganic or organic adjuvants for the manufacture of tablets, coated tablets, dragees, hard gelatine capsules, injection solutions or topical preparations. As such adjuvants for tablets, dragees and hard gelatine capsules, for example lactose, corn starch or derivatives thereof, talc, stearic acid or salts thereof and the like can be used.

Suitable adjuvants for soft gelatine capsules are, for example, vegetable oils, waxes (wax), fats, semi-solid substances and liquid polyols, etc.

Suitable adjuvants for the manufacture of solutions and syrups are, for example, water, polyols, sucrose, invert sugar, glucose and the like.

Suitable adjuvants for injection solutions are, for example, water, alcohols, polyols, glycerol, vegetable oils, etc.

Suitable adjuvants for suppositories are, for example, natural or hardened oils, waxes, fats, semi-solid or liquid polyols and the like.

Suitable adjuvants for topical ophthalmic formulations are, for example, cyclodextrins, mannitol, or many other carriers and excipients known in the art.

In addition, the pharmaceutical preparations can contain preservatives, solubilizers, viscosity-increasing substances, stabilizers, wetting agents, emulsifiers, sweeteners, colorants, flavorants, salts for varying the osmotic pressure, buffers, masking agents or antioxidants. They may also contain other therapeutically valuable substances.

The dosage may vary within wide ranges and will of course be adapted to the individual requirements in each particular case. In general, in the case of oral administration, a daily dose of about 0.1mg to 20mg/kg body weight, preferably about 0.5mg to 4mg/kg body weight (e.g. as compared to 300 mg/person), preferably divided into 1-3 individual doses (which may, for example, consist of the same amount), should be suitable. In the case of topical administration, the formulation may contain 0.001 to 15% by weight of the drug, and the required dose (which may be 0.1 to 25mg) may be administered in a single dose per day or per week, or in multiple doses (2 to 4) per day, or in multiple doses per week. However, it is to be understood that the upper or lower limits given herein may be exceeded when they are shown as indicated.

Preparation of a pharmaceutical composition comprising a compound of the invention:

tablets having the following composition were prepared in a conventional manner:

preparation process

1. Ingredients 1, 2, 3 and 4 were mixed and granulated with purified water.

2. The granules were dried at 50 ℃.

3. The granules are passed through a suitable milling apparatus.

4. Add ingredient 5 and mix for three minutes; pressing on a suitable press.

Capsules having the following composition were prepared:

Preparation process

1. Ingredients 1, 2 and 3 were mixed in a suitable mixer for 30 minutes.

2. Add ingredients 4 and 5 and mix for 3 minutes.

3. Packaging into proper capsule.

The compound of formula I, lactose and corn starch are first mixed in a mixer and then mixed in a mill. Returning the mixture to the mixer; talc was added thereto and mixed well. The mixture is filled by machine into suitable capsules (e.g. hard gelatin capsules).

An injection having the following composition was prepared:

composition (I)	mg/injection.
		A compound of formula I	3
Polyethylene glycol 400	150
		Acetic acid	Proper amount of the mixture is adjusted to pH 5.0
Water for injection	Adjusted to 1.0ml

The invention is illustrated below by means of examples, which are not limitative.

In case the preparations are obtained as mixtures of enantiomers, the pure enantiomers can be obtained by the methods described herein or by methods known to the skilled person, such as e.g. chiral chromatography or crystallization.

Examples

Intermediate 1: n-tert-butyl-3- (4-chlorophenyl) -5-iodobenzamide

Step A

To a stirred solution of commercially available 3-iodo-5-nitrobenzoic acid (2g, 6.83mmol) in THF (49.1ml) was added N, N-diisopropylethylamine (2.21g, 2.98ml, 17.1mmol), 2-methylpropan-2-amine (611mg, 878. mu.l, 8.19mmol) and O- (benzotriazol-1-yl) -N, N, N ', N' -tetramethyluronium tetrafluoroborate (TBTU) (3.51g, 10.9mmol) at room temperature. The reaction mixture was stirred at room temperature for 4h, evaporated and the residue was purified by flash chromatography on silica gel [ heptane/ethyl acetate (0-50%) ]Purification afforded N-tert-butyl-3-iodo-5-nitrobenzamide (2.31g, 97%) as an off-white solid, ms (isp) M/z 349.0[ (M + H)⁺]，mp 166℃。

Step B

N-tert-butyl-3-iodo-5-nitrobenzamide (2.3g, 6.61mmol) and (4-chlorophenyl) boronic acid (1.34g, 8.59mmol) were added to 1, 2-dimethoxyethane (44ml) and 2M Na₂CO₃(11ml, 22mmol) was purged with argon for 5min in an ultrasonic bath, triphenylphosphine (347mg, 1.32mmol) and palladium (II) acetate (148mg, 661. mu. mol) were added and the reaction mixture was stirred at reflux for 3 h. The reaction mixture was poured into water (50ml) and extracted with ethyl acetate (2 × 50 ml). The combined organic layers were washed with brine (40ml) and dried (MgSO)₄) And evaporated to give the crude product (3.09g) as a brown solid which was purified by flash chromatography on silica gel [ heptane/ethyl acetate (0-50%)]Purification afforded N-tert-butyl-3- (4-chlorophenyl) -5-nitrobenzamide (2.38g, 92%) as a brown solid, ms (isp) M/z 333.1[ (M + H)⁺]，mp 186℃。

Step C

To a stirred solution of N-tert-butyl-3- (4-chlorophenyl) -5-nitrobenzamide (2.38g, 6.58mmol) in MeOH (49.8ml) was added tin (II) chloride dihydrate (5.94g, 26.3mmol) at room temperature and the reaction mixture was stirred at reflux for 2h, evaporated, added Water (50ml) and 2N NaOH (50ml), and the mixture was extracted with ethyl acetate (2 × 75 ml). The combined organic layers were washed with water (50ml) and brine (50ml) and dried (MgSO)₄) And evaporated. The crude product (brown solid, 2.08g) was purified by flash chromatography on silica gel [ dichloromethane/MeOH (1-5%)]Purification gave 3-amino-N-tert-butyl-5- (4-chlorophenyl) -benzamide (1.90g, 95%) as a light brown solid, ms (isp) M/z 303.1[ (M + H)⁺]，mp 231℃。

Step D

A mixture of 3-amino-N-tert-butyl-5- (4-chlorophenyl) -benzamide (1.899g, 6.27mmol), isoamyl nitrite (4.59g, 5.27ml, 37.6mmol), and diiodomethane (10.2g, 3.07ml, 37.6mmol) was stirred at room temperature for 1h, then at 65 ℃ for 5 h. The reaction mixture was cooled to room temperature, toluene (30ml) was added and the mixture was evaporated to dryness and repeated 3 times. The residue was purified by flash chromatography on silica gel [ heptane/ethyl acetate (0-40%)]Purification gave the title compound (1.41g, 55%) as a pale yellow foam, ms (isp) M/z 414.0[ (M + H)⁺]。

Intermediate 2: n-tert-butyl-3- (4-fluorophenyl) -5-iodobenzamide

Step A

According to the general procedure for intermediate 1, step B, 3- (4-fluorophenyl) -5-nitrobenzoic acid was prepared from commercially available 3-iodo-5-nitrobenzoic acid (5.0g, 17.1mmol) and commercially available (4-fluorophenyl) -boronic acid (2.63g, 18.8mmol) as a beige solid (4.33g, 97%), ms (isn) M/z ═ 260.1[ (M-H) ^-]，mp 182℃。

Step B

According to the general procedure for intermediate 1, step a, N-tert-butyl-3- (4-fluorophenyl) -5-nitrobenzamide was prepared from 3- (4-fluorophenyl) -5-nitrobenzoic acid (914mg, 3.50mmol) and commercially available 2-methylpropan-2-amine (307mg, 441 μ l, 4.20mmol) as a yellow solid (1.03g, 93%), ms (isp) M/z 317.1[ (M + H)⁺]，mp 180℃。

Step C

Following general method of intermediate 1, step C, 3-amino-N-tert-butyl-5- (4-fluorophenyl) -benzamide was prepared from N-tert-butyl-3- (4-fluorophenyl) -5-nitrobenzamide (1.03g, 3.26mmol) as a light yellow solid (0.93g, 99%), ms (isp) M/z 287.2[ (M + H)⁺]，mp 215℃。

Step D

The title compound was prepared according to general procedure intermediate 1, step D from 3-amino-N-tert-butyl-5- (4-fluorophenyl) -benzamide (0.93g, 3.25mmol) as off-white (0.83g, 64%), ms (isp) M/z ═ 398.1[ (M + H)⁺]，mp 146℃。

Intermediate 3: n-tert-butyl-3-iodo-5- [4- (trifluoromethyl) -phenyl ] -benzamide

Step A

According to the general procedure of intermediate 1, step B, N-tert-butyl-3-nitro-5- [4- (trifluoromethyl) -phenyl) -boronic acid was prepared from N-tert-butyl-3-iodo-5-nitrobenzamide (intermediate 1, step A) (0.50g, 1.44mmol) and commercially available (4-trifluoromethyl-phenyl) -boronic acid (355mg, 1.87mmol) ]-benzamide, light brown solid (0.52g, 99%), ms (isp) M/z 367.2[ (M + H)⁺]，mp 187.5℃。

Step B

General procedure according to intermediate 1, step C, from N-tert-butyl-3-nitro-5- [4- (trifluoromethyl) -phenyl]Preparation of 3-amino-N-tert-butyl-5- [4- (trifluoromethyl) -phenyl ] -benzamide (0.52g, 1.42mmol)]Benzamide, light yellow solid (0.48g, 99%), ms (isp) M/z 337.2[ (M + H)⁺]，mp 228.5℃。

Step C

General procedure according to intermediate 1, step D, from 3-amino-N-tert-butyl-5- [4- (trifluoromethyl) -phenyl]Benzamide (0.46g, 1.37mmol) the title compound was prepared as a light yellow solid (0.44g, 72%), ms (isp) M/z 448.1[ (M + H)⁺]，mp 139℃。

Intermediate 4: n-tert-butyl-3-iodo-5- (2-prop-2-yl-pyrazol-3-yl) -benzamide

Step A

According to the general method of intermediate 1, step B, N-tert-butyl-3-nitro-5- (2-prop-2-yl-pyrazol-3-yl) -benzamide, off-white solid (1.29g, 78%), ms (isp) M/z ═ 331.2[ (M + H)⁺]，mp 156℃。

Step B

3-amino-N-tert-butyl-5- (2-propan-2-yl-pyrazol-3-yl) -benzamide was prepared from N-tert-butyl-3-nitro-5- (2-propan-2-yl-pyrazol-3-yl) -benzamide (1.29g, 3.90mmol) according to the general procedure for intermediate 1, step C, as a white solid (1.15g, 98%), ms (isp) M/z 301.2[ (M + H) ⁺]，mp 195℃。

Step C

The title compound was prepared according to the general method for intermediate 1, step D from 3-amino-N-tert-butyl-5- (2-propan-2-yl-pyrazol-3-yl) -benzamide (1.15g, 3.83mmol) as a light yellow foam (1.23g, 78%), ms (isp) M/z ═ 412.2[ (M + H)⁺]，mp 166℃。

Intermediate 5: 3- (4-chlorophenyl) -5-iodo-N- (2-methylbut-2-yl) -benzamide

Step A

Following general method of intermediate 1, step a, 3-iodo-N- (2-methylbut-2-yl) -5-nitrobenzamide was prepared from commercially available 3-iodo-5-nitrobenzoic acid (1.17g, 4.0mmol) and commercially available 2-methylbut-2-amine (0.42g, 4.8mmol) as an off-white solid (1.44g, 99%), ms (isp) M/z-363.0 [ (M + H)⁺]，mp 117℃。

Step B

Following the general procedure of intermediate 1, step B, 3- (4-chlorophenyl) -N- (2-methylbut-2-yl) -5-nitrobenzamide was prepared from 3-iodo-N- (2-methylbut-2-yl) -5-nitrobenzamide (0.72g, 1.99mmol) and commercially available (4-chlorophenyl) -boronic acid (405mg, 2.59mmol) as a light brown solid (0.69g, 99%), ms (isp) M/z ═ 347.1[ (M + H)⁺]，mp 171.5℃。

Step C

Following the general procedure of intermediate 1, step C, 3-amino-5- (4-chlorophenyl) -N- (2-methylbut-2-yl) -benzamide was prepared from 3- (4-chlorophenyl) -N- (2-methylbut-2-yl) -5-nitrobenzamide (1.25g, 3.48mmol) as a light yellow solid (0.62g, 97%), ms (isp) M/z 317.2[ (M + H) ⁺]，mp 192℃。

Step D

The title compound was prepared according to the general method of intermediate 1, step D from 3-amino-5- (4-chlorophenyl) -N- (2-methylbut-2-yl) -benzamide (0.62g, 1.96mmol) as a light yellow solid (0.65g, 78%), ms (isp) M/z ═ 428.1[ (M + H)⁺]，mp 136℃。

Intermediate 6: 3- (4-chlorophenyl) -N- (2-cyano-prop-2-yl) -5-iodo-benzamide

Step A

To commercially available 3-iodo-5-nitrobenzoic acid (3.60g, 12.3mmol) and Pd (Ph) at room temperature₃P)₄(454mg, 393. mu. mol) to a stirred solution in toluene (68ml) and ethanol (11.3ml) was added commercially available 4-chloro-phenylboronic acid (2.11g, 13.5mmol) and Cs₂CO₃(4.40g, 13.5mmol) in water (4.56 ml). The reaction mixture was stirred under reflux for 18h and then cooled to room temperature. To the mixture was added 2N NaOH (50ml), and the reaction mixture was stirred at room temperature for 30 min. Some of the precipitated material was collected by filtration. The organic layer was separated and concentrated hydrochloric acid (18ml) was added to the aqueous layer together with the precipitated material to reach a pH < 4. Mixing with acetic acid ethyl esterThe ester (2 × 75ml) was extracted and the combined organic layers were washed with brine and dried (MgSO) to dryness₄) And evaporated to give crude 3- (4-chlorophenyl) -5-nitrobenzoic acid (3.26g, 11.7mmol) as a brown solid, ms (isn) M/z 276.1[ (M-H) ^-]It was then dissolved in methanol (29 ml). Thionyl chloride (1.54g, 0.94ml, 12.9mmol) was added dropwise to the stirred solution at 0 ℃. The reaction mixture was allowed to warm to room temperature, then stirred under reflux for 2 h. The solvent was removed in vacuo to give crude methyl 3- (4-chlorophenyl) -5-nitrobenzoate (3.26g, 11.2mmol) as a brown solid, ms (isp) M/z 292.1[ (M + H)⁺]It was then dissolved in methanol (29 ml). Tin (II) chloride (8.48g, 44.7mmol) was added to the stirred solution at room temperature, the reaction mixture was stirred at reflux for 3h, evaporated, the residue was dissolved in water (150ml) and purified by addition of Na₂CO₃Basification to pH 9. The mixture was extracted with dichloro-methane (3X75ml), the combined organic layers were washed with water (150ml), brine (150ml) and dried (MgSO)₄) And evaporated. The crude product was purified by flash chromatography on silica gel [ heptane/ethyl acetate (20-50%)]Purification gave 3-amino-5- (4-chlorophenyl) -benzoic acid methyl ester (2.29g, 71%) as a yellow solid, ms (isp) M/z 262.1[ (M + H)⁺]，mp 120℃。

Step B

A suspension of 3-amino-5- (4-chlorophenyl) -benzoic acid methyl ester (2.45g, 9.36mmol), isoamyl nitrite (6.85g, 7.86ml, 56.2mmol), copper (I) iodide (1.78g, 9.36mmol) and diiodomethane (15.2g, 4.58ml, 56.2mmol) in THF (24.1ml) was stirred at room temperature for 1h, then under reflux for 3 h. Toluene (30ml) was added to the reaction mixture at room temperature, the mixture was evaporated and purified by flash chromatography on silica gel [ heptane/ethyl acetate (0-50%) ]Purification afforded 5- (4-chlorophenyl) -3-iodo-benzoic acid methyl ester (3.17g, 91%) as a pale yellow solid, ms (isp) M/z ═ 372.1, [ (M + H)⁺]，mp 90.5℃。

Step C

To a stirred mixture of 5- (4-chlorophenyl) -3-iodo-benzoic acid methyl ester (499mg, 1.34mmol) in THF (2.24ml), methanol (2.24ml) and water (2.24ml) at room temperature was added lithium hydroxideMonohydrate (73.1mg, 1.74 mmol). The reaction mixture was stirred at rt for 4H, concentrated to one third, 2N HCl solution (2.58ml) was added, the precipitate was collected by filtration and dried to give 5- (4-chlorophenyl) -3-iodo-benzoic acid (440mg, 92%) as an off-white solid, ms (isn) M/z ═ 357.1[ (M-H)^-]，mp 222.5℃。

Step D

The title compound was prepared according to the general method of intermediate 1, step a from 5- (4-chlorophenyl) -3-iodo-benzoic acid (441mg, 1.23mmol) and commercially available 2-amino-2-methyl-propionitrile (155mg, 169 μ l, 1.84mmol) as a light yellow oil (0.51g, 98%), ms (isp) M/z ═ 425.2[ (M + H)⁺]。

Intermediate 7: n-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5-iodo-benzamide

Step A

According to the general procedure of intermediate 1, step B, N-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5-nitrobenzamide was prepared from N-tert-butyl-3-iodo-5-nitrobenzamide (intermediate 1, step a) (1.95g, 5.6mmol) and commercially available 1- (tert-butyl) -5- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-pyrazole (1.82g, 7.28mmol) as a yellow solid (1.56g, 81%), ms isp) M/z ═ 345.2[ (M + H) ⁺]，mp 179.5℃。

Step B

3-amino-N-tert-butyl-5- (2-tert-butyl-pyrazol-3-yl) -benzamide was prepared from N-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5-nitrobenzamide (1.54g, 4.47mmol) as an off-white solid (1.41g, 100%), MS (ISP) M/z 315.2[ (M + H)⁺]，mp 219.5℃。

Step C

The title compound was prepared according to the general method for intermediate 1, step D from 3-amino-N-tert-butyl-5- (2-tert-butyl-pyrazol-3-yl) -benzamide (1.42g, 4.52mmol) as an off-white solid (1.28g, 67.52 mmol)％)，MS(ISP)m/z＝426.2[(M+H)⁺]，mp 206℃。

Intermediate 8: 3- (4-chlorophenyl) -N- (2-cyclopropylpropan-2-yl) -5-iodobenzamide

Step A

According to the general procedure for intermediate 1, step a, 3- (4-chlorophenyl) -N- (2-cyclopropylpropan-2-yl) -5-nitrobenzamide was prepared from 3- (4-chlorophenyl) -5-nitrobenzoic acid (intermediate 2, step a) (1.05g, 3.78mmol) and commercially available 2-cyclopropylpropan-2-amine (0.45g, 4.54mmol) as a pale yellow solid (1.25g, 92%), ms (isp) M/z 359.1[ (M + H)⁺]，mp 172℃。

Step B

Following the general procedure of intermediate 1, step C, from 3- (4-chlorophenyl) -N- (2-cyclopropyl-propan-2-yl) -5-nitrobenzamide (1.25g, 3.48mmol) was prepared 3-amino-5- (4-chlorophenyl) -N- (2-cyclopropylpropan-2-yl) -benzamide as a pale yellow solid (0.98g, 85%), ms (isp) M/z 329.1[ (M + H) ⁺]，mp 199℃。

Step C

The title compound was prepared according to the general method for intermediate 1, step D from 3-amino-5- (4-chlorophenyl) -N- (2-cyclopropylpropan-2-yl) -benzamide (0.97g, 2.95mmol) as a light brown solid (1.0g, 77%), ms (isp) M/z ═ 440.1[ (M + H)⁺]，mp 152℃。

Intermediate 9: 3- (4-chlorophenyl) -N- (1-hydroxy-2-methylpropan-2-yl) -5-iodo-benzamide

Step A

Preparation of 3- (4-chlorophenyl) -N- (1-hydroxy-2-methyl-1-ol from 3- (4-chlorophenyl) -5-nitrobenzoic acid (intermediate 2, step A) (1.50g, 5.40mmol) and commercially available 2-amino-2-methylpropan-1-ol (0.58g, 6.48mmol) according to the general procedure of intermediate 1, step APhenylprop-2-yl) -5-nitrobenzamide as a pale yellow foam (1.36g, 72%), ms (isp) M/z 349.1[ (M + H)⁺]。

Step B

Following the general procedure for intermediate 1, step C, 3-amino-5- (4-chlorophenyl) -N- (1-hydroxy-2-methylpropan-2-yl) -benzamide was prepared from 3- (4-chlorophenyl) -N- (1-hydroxy-2-methylpropan-2-yl) -5-nitrobenzamide (0.60g, 1.72mmol) as a light yellow foam (0.54g, 99%), ms (isp) M/z 319.2[ (M + H)⁺]，mp 150℃。

Step C

According to the general method of intermediate 1, step D, the title compound was prepared from 3-amino-5- (4-chlorophenyl) -N- (1-hydroxy-2-methylpropan-2-yl) -benzamide (0.52g, 1.63mmol) as a light yellow foam (0.52g, 74%), ms (isp) M/z ═ 430.1[ (M + H) ⁺]，mp 79℃。

Intermediate 10: 3- (4-chlorophenyl) -5-iodo-N- (1, 1, 1-trifluoro-2-methyl-propan-2-yl) -benzamide

Step A

Following the general procedure of intermediate 1, step a, 3- (4-chlorophenyl) -5-nitro-N- (1, 1, 1-trifluoro-2-methylpropan-2-yl) -benzamide was prepared from 3- (4-chlorophenyl) -5-nitrobenzoic acid (intermediate 2, step a) (1.05g, 3.78mmol) and commercially available 1, 1, 1-trifluoro-2-methylpropan-2-amine (577mg, 4.54mmol) as an off-white solid (0.63g, 43%), ms (isp) M/z ═ 387.1[ (M + H)⁺]，mp 180℃。

Step B

Following general procedure as for intermediate 1, step C, 3-amino-5- (4-chlorophenyl) -N- (1, 1, 1-trifluoro-2-methylpropan-2-yl) -benzamide was prepared from 3- (4-chlorophenyl) -5-nitro-N- (1, 1, 1-trifluoro-2-methylpropan-2-yl) -benzamide (0.63g, 1.63mmol) as a pale yellow solid (0.57g, 98%), ms (isp) M/z ═ 357.1[ (M + H)⁺]，mp 150℃。

Step C

According to inIntermediate 1, general method for step D, from 3-amino-5- (4-chlorophenyl) -N- (1, 1, 1-trifluoro-2-methylpropan-2-yl) -benzamide (0.56g, 1.58mmol) the title compound was prepared as a light yellow solid (0.53g, 71%), ms (isp) M/z 468.1[ (M + H)⁺]，mp 163℃。

Example 1: n-tert-butyl-3- (4-chlorophenyl) -5- (2-methyl-pyrazol-3-yl) -benzamide

In a sealed tube, a mixture of N-tert-butyl-3- (4-chlorophenyl) -5-iodobenzamide (intermediate 1) (103mg, 0.25mmol), commercially available 1-methyl-5- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-pyrazole (67.6mg, 325 μmol), 1, 2-dimethoxyethane (1.67ml) and 2M sodium carbonate solution (416 μ l, 833 μmol) was purged with argon in an ultrasonic bath for 5min, triphenylphosphine (13.1mg, 50 μmol) and palladium (II) acetate (5.61mg, 25 μmol) were added, and the reaction mixture was stirred at 105 ℃ for 16H. The crude reaction mixture was purified by flash chromatography on silica gel [ heptane/ethyl acetate (10-60%)]Purification gave the title compound (73mg, 79%) as a beige solid, ms (isp) M/z 368.2[ (M + H)⁺]，mp 191℃。

Example 2: n-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5- (4-fluorophenyl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (4-fluorophenyl) -5-iodobenzamide (intermediate 2) (99.3mg, 0.25mmol) and commercially available 1- (tert-butyl) -5- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-pyrazole (75.0mg, 0.30mmol) as a white solid (61mg, 62%), ms (isp) M/z ═ 394.4[ (M + H) ⁺]，mp210℃。

Example 3: n-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5- [4- (trifluoromethyl) -phenyl ] -benzamide

The general procedure of example 1 was followed from N-tert-butyl-3-iodo-5- [4- (trifluoromethyl) -phenyl]-benzamide (intermediate 3) (112mg, 0.25mmol) and commercially available 1- (tert-butyl) -5- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-pyrazole (75.0mg, 0.30mmol) the title compound was prepared as an off-white solid (63mg, 57%), ms (isp) M/z ═ 444.4[ (M + H)⁺]，mp 205℃。

Example 4: n-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5- (4-chlorophenyl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (4-chlorophenyl) -5-iodobenzamide (intermediate 1) (103mg, 0.25mmol) and commercially available 1- (tert-butyl) -5- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-pyrazole (75.0mg, 0.30mmol) as a white solid (39mg, 34%), ms (isp) M/z ═ 410.3[ (M + H)⁺]，mp209℃。

Example 5: n-tert-butyl-3- (4-chlorophenyl) -5- (2-propan-2-yl-pyrazol-3-yl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (4-chlorophenyl) -5-iodobenzamide (intermediate 1) (103mg, 0.25mmol) and commercially available (1-isopropyl-1H-pyrazol-5-yl) -boronic acid (46.2mg, 300 μmol) as a white foam (70mg, 71%), ms (isp) M/z 396.3[ (M + H) ⁺]，mp 84℃。

Example 6: n-tert-butyl-3- (4-fluorophenyl) -5- (2-propan-2-yl-pyrazol-3-yl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (4-fluorophenyl) -5-iodobenzamide (intermediate 2) (99.3mg, 0.25mmol) and commercially available (1-isopropyl-1H-pyrazol-5-yl) -boronic acid (50.0mg, 325 μmol) as a light yellow solid (91mg, 96%), ms (isp) M/z 380.3[ (M + H)⁺]，mp 161℃。

Example 7: n-tert-butyl-3- (2-propan-2-yl-pyrazol-3-yl) -5- [4- (trifluoromethyl) -phenyl ] -benzamide

Following the general procedure of example 1, starting from N-tert-butyl-3-iodo-5- [4- (trifluoromethyl) -phenyl]Benzamide (intermediate 3) (112mg, 0.25mmol) and commercially available (1-isopropyl-1H-pyrazol-5-yl) -boronic acid (50.0mg, 325 μmol) the title compound was prepared as an off-white foam (104mg, 97%), ms (isp) M/z ═ 430.3[ (M + H)⁺]，mp 81℃。

Example 8: n-tert-butyl-3- (3, 4-difluorophenyl) -5- (2-prop-2-yl-pyrazol-3-yl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3-iodo-5- (2-prop-2-yl-pyrazol-3-yl) -benzamide (intermediate 4) (103mg, 0.25mmol) and commercially available (3, 4-difluorophenyl) -boronic acid (51.3mg, 325 μmol) as an off-white solid (95mg, 96%), ms (isp) M/z-398.3.3 [ (M + H) ⁺]，mp 82℃。

Example 9: n-tert-butyl-3- (4-methylphenyl) -5- (2-propan-2-yl-pyrazol-3-yl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3-iodo-5- (2-propan-2-yl-pyrazol-3-yl) -benzamide (intermediate 4) (103mg, 0.25mmol) and commercially available p-tolyl-boronic acid (44.2mg, 325 μmol) as a light yellow solid (88mg, 94%), ms (isp) M/z 376.3[ (M + H)⁺]，mp 163℃。

Example 10: n-tert-butyl-3- (4-propan-2-yl-phenyl) -5- (2-propan-2-yl-pyrazol-3-yl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3-iodo-5- (2-prop-2-yl-pyrazol-3-yl) -benzamide (intermediate 4) (103mg, 0.25mmol) and commercially available (4-isopropylphenyl) -boronic acid (53.3mg, 325 μmol) as a white foam (96mg, 95%), ms (isp) M/z ═ 404.3[ (M + H)⁺]，mp 86℃。

Example 11: n-tert-butyl-3- (4-methoxyphenyl) -5- (2-propan-2-yl-pyrazol-3-yl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3-iodo-5- (2-propan-2-yl-pyrazol-3-yl) -benzamide (intermediate 4) (103mg, 0.25mmol) and commercially available (4-methoxyphenyl) -boronic acid (49.4mg, 325 μmol) as a light brown foam (96mg, 98%), ms (isp) M/z 392.3[ (M + H) ⁺]，mp 79℃。

Example 12: n-tert-butyl-3- (3-chloro-4-fluorophenyl) -5- (2-prop-2-yl-pyrazol-3-yl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3-iodo-5- (2-propan-2-yl-pyrazol-3-yl) -benzamide (intermediate 4) (103mg, 0.25mmol) and commercially available (3-chloro-4-fluoro-phenyl) -boronic acid (56.7mg, 325 μmol) as an off-white foam (103mg, 99%), ms (isp) M/z 414.2[ (M + H)⁺]，mp 81℃。

Example 13: n-tert-butyl-3-phenyl-5- (2-propan-2-yl-pyrazol-3-yl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3-iodo-5- (2-prop-2-yl-pyrazol-3-yl) -benzamide (intermediate 4) (103mg, 0.25mmol) and commercially available phenyl-boronic acid (39.6mg, 325 μmol) as a light red solid (86mg, 95%), ms (isp) M/z ═ 362.3[ (M + H)⁺]，mp 168℃。

Example 14: n-tert-butyl-3- (4-cyclopropyl-phenyl) -5- (2-propan-2-yl-pyrazol-3-yl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3-iodo-5- (2-prop-2-yl-pyrazol-3-yl) -benzamide (intermediate 4) (103mg, 0.25mmol) and commercially available (4-cyclopropyl-phenyl) -boronic acid (52.6mg, 325 μmol) as an off-white foam (96mg, 96%), ms (isp) M/z 402.3[ (M + H) ⁺]，mp 83℃。

Example 15: n-tert-butyl-3- (4-fluoro-3-methyl-phenyl) -5- (2-propan-2-yl-pyrazol-3-yl) -benzamide

According to the general procedure of example 1, starting from N-tert-butyl-3-iodo-5- (2-prop-2-yl-pyri-dineOxazol-3-yl) -benzamide (intermediate 4) (103mg, 0.25mmol) and commercially available (4-fluoro-3-methyl-phenyl) -boronic acid (50.0mg, 325 μmol) the title compound was prepared as an off-white solid (85mg, 86%), ms (isp) M/z 394.3[ (M + H)⁺]，mp 155℃。

Example 16: n-tert-butyl-3- (4-chloro-3-fluoro-phenyl) -5- (2-propan-2-yl-pyrazol-3-yl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3-iodo-5- (2-propan-2-yl-pyrazol-3-yl) -benzamide (intermediate 4) (103mg, 0.25mmol) and commercially available (4-chloro-3-fluoro-phenyl) -boronic acid (56.7mg, 325 μmol) as an off-white foam (98mg,%), ms (isp) M/z ═ 414.2[ (M + H)⁺]，mp 87℃。

Example 17: n-tert-butyl-3- (4-cyano-phenyl) -5- (2-propan-2-yl-pyrazol-3-yl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3-iodo-5- (2-propan-2-yl-pyrazol-3-yl) -benzamide (intermediate 4) (103mg, 0.25mmol) and commercially available (4-cyano-phenyl) -boronic acid (47.8mg, 325 μmol) as a light red foam (91mg,%), ms (isp) M/z 387.2[ (M + H) ⁺]，mp 94℃。

Example 18: 3- (2-tert-butyl-pyrazol-3-yl) -5- (4-chlorophenyl) -N- (2-methyl-but-2-yl) -benzamide

Following the general procedure of example 1, starting from 3- (4-chlorophenyl) -5-iodo-N- (2-methylbut-2-yl) -benzamide (intermediate 5) (107mg, 0.25mmol) and commercially available 1- (tert-butyl) -5- (4, 4, 5mmol)5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-pyrazole (81.3mg, 325. mu. mol) the title compound was prepared as a white solid (40mg, 38%), MS (ISP) M/z 424.3[ (M + H)⁺]，mp 183.5℃。

Example 19: 3- (4-chlorophenyl) -N- (2-methyl-but-2-yl) -5- (2-prop-2-yl-pyrazol-3-yl) -benzamide

The title compound was prepared according to the general method of example 1 from 3- (4-chlorophenyl) -5-iodo-N- (2-methylbut-2-yl) -benzamide (intermediate 5) (107mg, 0.25mmol) and commercially available (1-isopropyl-1H-pyrazol-5-yl) -boronic acid (50.0mg, 325 μmol) as a white foam (80mg, 78%), ms (isp) M/z ═ 410.2[ (M + H)⁺]，mp 72.5℃。

Example 20: n-tert-butyl-3- (3-fluoro-4-methyl-phenyl) -5- (2-propan-2-yl-pyrazol-3-yl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3-iodo-5- (2-propan-2-yl-pyrazol-3-yl) -benzamide (intermediate 4) (103mg, 0.25mmol) and commercially available (3-fluoro-4-methyl-phenyl) -boronic acid (50.0mg, 325 μmol) as a light red foam (93mg, 95%), ms (isp) M/z 394.3[ (M + H) ⁺]，mp 81℃。

Example 21: 3- (4-chlorophenyl) -N- (2-cyano-propan-2-yl) -5- (2-propan-2-yl-pyrazol-3-yl) -benzamide

Following the general procedure of example 1, starting from 3- (4-chlorophenyl) -N- (2-cyano-propan-2-yl) -5-iodo-benzamide (intermediate 6) (106mg, 0.25mmol) and commercially available (1-isopropyl-1H-pyrazol-5-yl) -boronic acid(50.0mg, 325. mu. mol) the title compound was prepared as a pale yellow foam (80mg, 79%), ms (isp) M/z 407.2[ (M + H)⁺]，mp 96℃。

Example 22: 3- (2-tert-butylpyrazol-3-yl) -5- (4-chlorophenyl) -N- (2-cyanopropan-2-yl) -benzamide

The title compound was prepared according to the general method of example 1 from 3- (4-chlorophenyl) -N- (2-cyano-propan-2-yl) -5-iodo-benzamide (intermediate 6) (106mg, 0.25mmol) and commercially available 1- (tert-butyl) -5- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-pyrazole (81.3mg, 325 μmol) as a white foam (70mg, 67%), ms (isp) M/z-421.3 [ (M + H)⁺]，mp 119℃。

Example 23: n-tert-butyl-3- (2-cyclopropyl-pyrazol-3-yl) -5- (4-fluorophenyl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (4-fluorophenyl) -5-iodobenzamide (intermediate 2) (99.3mg, 0.25mmol) and commercially available 1-cyclopropyl-5- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-pyrazole (76.1mg, 325 μmol) as a white foam (70mg, 74%), ms (isp) M/z-378.3 [ (M + H) ⁺]，mp 66℃。

Example 24: n-tert-butyl-3- (4-chlorophenyl) -5- (2-ethyl-pyrazol-3-yl) -benzamide

Following the general procedure of example 1, starting from N-tert-butyl-3- (4-chlorophenyl) -5-iodobenzamide (intermediate 1) (103mg, 0.25mmol) and commercially available (1-ethyl-1H-pyrazol-5-yl) -boronic acid (45.5 mg)325 μmol) the title compound was prepared as an off-white foam (74mg, 78%), ms (isp) M/z 382.2[ (M + H)⁺]，mp 68℃。

Example 25: n-tert-butyl-3- (4-chlorophenyl) -5- [2- (cyclopropyl-methyl) -pyrazol-3-yl ] -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (4-chlorophenyl) -5-iodobenzamide (intermediate 1) (103mg, 0.25mmol) and commercially available 1- (cyclopropylmethyl) -5- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-pyrazole (80.6mg, 325 μmol) as a white solid (84mg, 82%), ms (isp) M/z ═ 408.2[ (M + H)⁺]，mp 159℃。

Example 26: 3- (4-chlorophenyl) -N- (2-cyclopropyl-propan-2-yl) -5- (2-propan-2-yl-pyrazol-3-yl) -benzamide

The title compound was prepared according to the general method of example 1 from 3- (4-chlorophenyl) -N- (2-cyclopropylpropan-2-yl) -5-iodobenzamide (intermediate 8) (110mg, 0.25mmol) and commercially available (1-isopropyl-1H-pyrazol-5-yl) -boronic acid (50.0mg, 325 μmol) as a light yellow foam (99mg, 94%), ms (isp) M/z 422.3[ (M + H) ⁺]，mp 169℃。

Example 27: n-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5- (4-fluoro-3-methyl-phenyl) -benzamide

Prepared according to the general method of example 1 from N-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5-iodo-benzamide (intermediate 7) (106mg, 0.25mmol) and commercially available (4-fluoro-3-methyl-phenyl) -boronic acid (50.0mg, 325 μmol)The title compound was prepared as a white solid (61mg, 60%), ms (isp) M/z 408.3[ (M + H)⁺]，mp 186℃。

Example 28: n-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5-phenyl-benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5-iodo-benzamide (intermediate 7) (106mg, 0.25mmol) and commercially available phenyl-boronic acid (39.6mg, 325 μmol) as a white solid (56mg, 60%), ms (isp) M/z-376.3 [ (M + H)⁺]，mp 199.5℃。

Example 29: n-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5- (3-fluoro-4-methyl-phenyl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5-iodo-benzamide (intermediate 7) (106mg, 0.25mmol) and commercially available (3-fluoro-4-methyl-phenyl) -boronic acid (50.0mg, 325 μmol) as a white solid (65mg, 64%), ms (isp) M/z-408.3 [ (M + H) ⁺]，mp 202℃。

Example 30: n-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5- (4-methyl-phenyl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5-iodo-benzamide (intermediate 7) (106mg, 0.25mmol) and commercially available p-tolyl-boronic acid (44.2mg, 325 μmol) as a white solid (57mg, 59%), ms (isp) M/z 390.3[ (M + H)⁺]，mp 193℃。

Example 31: n-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5- (4-methoxy-phenyl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5-iodo-benzamide (intermediate 7) (106mg, 0.25mmol) and commercially available (4-methoxyphenyl) -boronic acid (49.4mg, 325 μmol) as a white solid (68mg, 67%), ms (isp) M/z ═ 406.3[ (M + H)⁺]，mp 173℃。

Example 32: n-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5- (3-chloro-4-fluoro-phenyl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5-iodo-benzamide (intermediate 7) (106mg, 0.25mmol) and commercially available (3-chloro-4-fluoro-phenyl) -boronic acid (56.7mg, 325 μmol) as a white solid (52mg, 49%), ms (isp) M/z-428.3 [ (M + H) ⁺]，mp 175℃。

Example 33: n-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5- (4-chloro-3-fluoro-phenyl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5-iodo-benzamide (intermediate 7) (106mg, 0.25mmol) and commercially available (4-chloro-3-fluoro-phenyl) -boronic acid (56.7mg, 325 μmol) as a white solid (69mg, 65%), ms (isp) M/z 428.3[ (M + H)⁺]，mp 225℃。

Example 34: n-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5- (4-propan-2-yl-phenyl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5-iodo-benzamide (intermediate 7) (106mg, 0.25mmol) and commercially available (4-isopropylphenyl) -boronic acid (53.3mg, 325 μmol) as a white solid (64mg, 61%), ms (isp) M/z ═ 418.4[ (M + H)⁺]，mp 209.5℃。

Example 35: 3- (2-tert-butyl-pyrazol-3-yl) -5- (4-chlorophenyl) -N- (2-cyclopropyl-propan-2-yl) -benzamide

The title compound was prepared according to the general method of example 1 from 3- (4-chlorophenyl) -N- (2-cyclopropylpropan-2-yl) -5-iodobenzamide (intermediate 8) (110mg, 0.25mmol) and commercially available 1- (tert-butyl) -5- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-pyrazole (81.3mg, 325 μmol) as a yellow solid (48mg, 44%), ms isp) M/z ═ 436.3[ (M + H) ⁺]，mp 166℃。

Example 36: n-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5- (3, 4-difluorophenyl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5-iodo-benzamide (intermediate 7) (106mg, 0.25mmol) and commercially available (3, 4-difluorophenyl) -boronic acid (51.3mg, 325 μmol) as a white solid (53mg, 52%), ms (isp) M/z 412.3[ (M + H)⁺]，mp 197.5℃。

Example 37: n-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5- (4-cyclopropyl-phenyl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5-iodo-benzamide (intermediate 7) (106mg, 0.25mmol) and commercially available (4-cyclopropyl-phenyl) -boronic acid (52.6mg, 325 μmol) as a white solid (60mg, 58%), ms (isp) M/z ═ 416.3[ (M + H)⁺]，mp 198.5℃。

Example 38: n-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5- (4-cyano-phenyl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (2-tert-butyl-pyrazol-3-yl) -5-iodo-benzamide (intermediate 7) (106mg, 0.25mmol) and commercially available (4-cyano-phenyl) -boronic acid (47.8mg, 325 μmol) as a white solid (63mg, 63%), ms (isp) M/z ═ 401.3[ (M + H) ⁺]，mp 201.5℃。

Example 39: 3- (4-chlorophenyl) -N- (1-hydroxy-2-methyl-propan-2-yl) -5- (2-propan-2-yl-pyrazol-3-yl) -benzamide

The title compound was prepared according to the general method of example 1 from 3- (4-chlorophenyl) -N- (1-hydroxy-2-methylpropan-2-yl) -5-iodo-benzamide (intermediate 9) (107mg, 0.25mmol) and commercially available (1-isopropyl-1H-pyrazol-5-yl) -boronic acid (50.0mg, 325 μmol) as an off-white foam (80mg, 78%), ms (isp) M/z 412.3[ (M + H)⁺]，mp 80.5℃。

Example 40: 3- (4-chlorophenyl) -5- (2-propan-2-yl-pyrazol-3-yl) -N- (1, 1, 1-trifluoro-2-methyl-propan-2-yl) -benzamide

The title compound was prepared according to the general method of example 1 from 3- (4-chlorophenyl) -5-iodo-N- (1, 1, 1-trifluoro-2-methyl-propan-2-yl) -benzamide (intermediate 10) (117mg, 0.25mmol) and commercially available (1-isopropyl-1H-pyrazol-5-yl) -boronic acid (50.0mg, 325 μmol) as an off-white foam (90mg, 80%), ms (isp) M/z ═ 450.2[ (M + H)⁺]，mp 77.5℃。

Example 41: 3- (2-tert-butyl-pyrazol-3-yl) -5- (4-chlorophenyl) -N- (1-hydroxy-2-methylpropan-2-yl) -benzamide

The title compound was prepared according to the general method of example 1 from 3- (4-chlorophenyl) -N- (1-hydroxy-2-methylpropan-2-yl) -5-iodo-benzamide (intermediate 9) (107mg, 0.25mmol) and commercially available 1- (tert-butyl) -5- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-pyrazole (81.3mg, 325 μmol) as an off-white foam (60mg, 56%), ms (isp) M/z 426.3[ (M + H) ⁺]，mp 83℃。

Example 42: 3- (2-tert-butylpyrazol-3-yl) -5- (4-chlorophenyl) -N- (1, 1, 1-trifluoro-2-methyl-propan-2-yl) -benzamide

The title compound was prepared according to the general method of example 1 from 3- (4-chlorophenyl) -5-iodo-N- (1, 1, 1-trifluoro-2-methyl-propan-2-yl) -benzamide (intermediate 10) (117mg, 0.25mmol) and commercially available 1- (tert-butyl) -5- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-pyrazole (81.3mg, 325 μmol) as a light yellow foam (30mg, 26%), ms (isp) M/z 464.4[ (M + H)⁺]，mp 81℃。

Example 43: n-tert-butyl-3- (2-cyclopropyl-pyrazol-3-yl) -5- [4- (trifluoromethyl) -phenyl ] -benzamide

Following the general procedure of example 1, starting from N-tert-butyl-3-iodo-5- [4- (trifluoromethyl) -phenyl]-benzamide (intermediate 3) (112mg, 0.25mmol) and commercially available 1-cyclopropyl-5- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-pyrazole (76.1mg, 325 μmol) the title compound was prepared as a white foam (85mg, 80%), ms (isp) M/z ═ 428.3[ (M + H)⁺]，mp 72℃。

Example 44: n-tert-butyl-3- [2- (cyclopropylmethyl) -pyrazol-3-yl ] -5- [4- (trifluoromethyl) -phenyl ] -benzamide

Following the general procedure of example 1, starting from N-tert-butyl-3-iodo-5- [4- (trifluoromethyl) -phenyl ]-benzamide (intermediate 3) (112mg, 0.25mmol) and commercially available 1- (cyclopropylmethyl) -5- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-pyrazole (80.6mg, 325 μmol) the title compound was prepared as a white foam (87mg, 79%), ms (isp) M/z 442.3[ (M + H)⁺]，mp 69℃。

Example 45: n-tert-butyl-3- (4-chlorophenyl) -5- (2-cyclopropyl-pyrazol-3-yl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (4-chlorophenyl) -5-iodobenzamide (intermediate 1) (80.0mg, 0.19mmol) and commercially available 1-cyclopropyl-5- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-pyrazole (58.9mg, 0.25mmol) as an off-white foam (55mg, 72%), ms (isp) M/z 394.2[ (M + H)⁺]，mp 72℃。

Example 46: n-tert-butyl-3- [2- (cyclopropylmethyl) -pyrazol-3-yl ] -5- (4-fluorophenyl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (4-fluorophenyl) -5-iodobenzamide (intermediate 2) (99.3mg, 0.25mmol) and commercially available 1- (cyclopropylmethyl) -5- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-pyrazole (80.6mg, 325 μmol) as a white solid (90mg, 92%), ms (isp) M/z-392.3 [ (M + H) ⁺]，mp 188℃。

Example 47: n-tert-butyl-3- (2-ethyl-pyrazol-3-yl) -5- (4-fluorophenyl) -benzamide

The title compound was prepared according to the general method of example 1 from N-tert-butyl-3- (4-fluorophenyl) -5-iodobenzamide (intermediate 2) (99.3mg, 0.25mmol) and commercially available (1-ethyl-1H-pyrazol-5-yl) boronic acid (45.5mg, 325 μmol) as an off-white solid (87mg, 95%), ms (isp) M/z 366.2[ (M + H)⁺]，mp 162℃。

Example 48: n-tert-butyl-3- (2-ethyl-pyrazol-3-yl) -5- [4- (trifluoromethyl) -phenyl ] -benzamide

The general procedure of example 1 was followed from N-tert-butyl-3-iodo-5- [4- (trifluoromethyl) -phenyl]Benzamide (intermediate 3) (112mg, 0.25mmol) and commercially available (1-ethyl-1H-pyrazol-5-yl) boronic acid (45.5mg, 325 μmol) the title compound was prepared as a white foam (67mg, 65%), ms (isp) M/z ═ 416.3[ (M + H)⁺]，mp 70℃。

Claims

1. A compound of the formula (I),

wherein

R¹' is methyl;

R¹selected from the group consisting of:

i) a methyl group, a hydroxyl group, a carboxyl group,

ii) an ethyl group, and (iii) a vinyl group,

iii) a trifluoromethyl group, a pharmaceutically acceptable salt thereof,

iv) a hydroxy-methyl group, and (iii) a hydroxy-methyl group,

v) cyclopropyl, and

vi) a cyano group;

R²selected from the group consisting of:

i) The hydrogen is used as a carrier gas for the reaction,

ii) a methyl group, and (iii) a methyl group,

iii) an ethyl group, and (ii) a vinyl group,

iv) an isopropyl group, and (iii) a salt thereof,

v) a tertiary butyl group, and a tertiary butyl group,

vi) a cyclopropyl group, in which the alkyl group is,

vii) cyclopropylmethyl, and

viii) hydroxymethyl;

R³selected from the group consisting of:

i) the hydrogen is used as a carrier gas for the reaction,

ii) a source of chlorine, and (iii),

iii) a fluorine atom in the group,

iv) a methyl group, and (iii) a methyl group,

v) an isopropyl group, and (iv) a salt thereof,

vi) a methoxy group,

vii) a cyano group,

viii) cyclopropyl, and

ix) trifluoromethyl;

R⁴selected from the group consisting of:

i) the presence of hydrogen in the presence of hydrogen,

ii) a chlorine (Cl) in the reaction mixture,

iii) fluorine, and

iv) methyl;

or a pharmaceutically acceptable salt thereof.

2. A compound according to claim 1, wherein R¹Is a methyl group.

3. A compound according to any one of claims 1 to 2, wherein R²Selected from the group consisting of:

i) the methyl group is a group selected from the group consisting of,

ii) an ethyl group, and (iii) a vinyl group,

iii) an isopropyl group, and (ii) a methyl group,

iv) a tertiary butyl group, and (iv) a tertiary butyl group,

v) cyclopropyl, and

vi) cyclopropylmethyl.

4. A compound according to any one of claims 1 to 2, wherein R³Selected from the group consisting of:

i) the presence of hydrogen in the presence of hydrogen,

ii) a source of chlorine, and (iii),

iii) a fluorine-containing compound having a fluorine-containing group,

iv) a methyl group, and (iii) a methyl group,

v) an isopropyl group, and (iv) a salt thereof,

vi) a methoxy group,

vii) a cyano group, in which,

viii) cyclopropyl, and

ix) trifluoromethyl.

5. A compound according to claim 4, wherein R³Selected from the group consisting of:

i) the reaction mixture of chlorine and water is treated with chlorine,

ii) a fluorine-containing compound having a fluorine-containing group,

iii) cyano, and

iv) a trifluoromethyl group.

6. A compound according to any one of claims 1 to 2, wherein R ⁴Is H.

7. A compound according to claim 1, wherein

R¹' and R¹Are both methyl;

R²selected from the group consisting of:

i) the methyl group is a group selected from the group consisting of,

ii) an ethyl group, and (iii) a vinyl group,

iii) an isopropyl group, and (ii) a methyl group,

iv) a tertiary butyl group, and (iv) a tertiary butyl group,

v) cyclopropyl, and

vi) cyclopropylmethyl;

R³selected from the group consisting of:

i) the presence of hydrogen in the presence of hydrogen,

ii) a chlorine (Cl) in the reaction mixture,

iii) a fluorine atom in the group,

iv) a methyl group, and (iii) a methyl group,

v) an isopropyl group, and (iv) a methyl group,

vi) a methoxy group,

vii) cyano, and

viii) cyclopropyl group

R⁴Selected from the group consisting of:

i) the hydrogen is used as a carrier gas for the reaction,

ii) a chlorine (Cl) in the reaction mixture,

iii) fluorine, and

iv) methyl;

or a pharmaceutically acceptable salt thereof.

8. A compound according to claim 1 selected from

N-tert-butyl-3- (4-chlorophenyl) -5- (2-methylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-fluorophenyl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-chlorophenyl) benzamide;

n-tert-butyl-3- (4-chlorophenyl) -5- (2-propan-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (4-fluorophenyl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

N-tert-butyl-3- (3, 4-difluorophenyl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (4-methylphenyl) -5- (2-propan-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (4-prop-2-ylphenyl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (4-methoxyphenyl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3-phenyl-5- (2-propan-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (4-cyclopropylphenyl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (4-cyanophenyl) -5- (2-propan-2-ylpyrazol-3-yl) benzamide;

3- (4-chlorophenyl) -N- (2-cyanopropan-2-yl) -5- (2-propan-2-ylpyrazol-3-yl) benzamide;

3- (2-tert-butylpyrazol-3-yl) -5- (4-chlorophenyl) -N- (2-cyanoprop-2-yl) benzamide;

n-tert-butyl-3- (2-cyclopropylpyrazol-3-yl) -5- (4-fluorophenyl) benzamide;

n-tert-butyl-3- (4-chlorophenyl) -5- (2-ethylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5-phenylbenzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-methylphenyl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-methoxyphenyl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-propan-2-ylphenyl) benzamide;

N-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (3, 4-difluorophenyl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-cyclopropylphenyl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-cyanophenyl) benzamide;

3- (4-chlorophenyl) -5- (2-prop-2-ylpyrazol-3-yl) -N- (1,1, 1-trifluoro-2-methylpropan-2-yl) benzamide;

3- (2-tert-butylpyrazol-3-yl) -5- (4-chlorophenyl) -N- (1,1, 1-trifluoro-2-methylpropan-2-yl) benzamide;

n-tert-butyl-3- (4-chlorophenyl) -5- (2-cyclopropylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (2-ethylpyrazol-3-yl) -5- (4-fluorophenyl) benzamide;

And pharmaceutically acceptable salts thereof.

9. A compound according to claim 1 selected from

N-tert-butyl-3- (4-chlorophenyl) -5- (2-methylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-fluorophenyl) benzamide;

n-tert-butyl-3- (4-chlorophenyl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (4-fluorophenyl) -5- (2-prop-2-ylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (2-cyclopropylpyrazol-3-yl) -5- (4-fluorophenyl) benzamide;

n-tert-butyl-3- (4-chlorophenyl) -5- (2-ethylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (2-tert-butylpyrazol-3-yl) -5- (4-cyanophenyl) benzamide;

n-tert-butyl-3- (4-chlorophenyl) -5- (2-cyclopropylpyrazol-3-yl) benzamide;

n-tert-butyl-3- (2-ethylpyrazol-3-yl) -5- (4-fluorophenyl) benzamide;

and pharmaceutically acceptable salts thereof.

10. A process for the preparation of a compound according to any one of claims 1 to 9, said process comprising

a) Reacting a compound of formula (II) in the presence of a compound of formula (III), wherein R ¹、R¹’、R²、R³And R⁴As defined in any one of claims 1 to 9;

or alternatively

b) Reacting a compound of formula (IV) in the presence of a compound of formula (V), wherein R¹、R¹’、R²、R³And R⁴As defined in any one of claims 1 to 9;

or alternatively

or

d) Reacting a compound of formula (XVIII) in the presence of a compound of formula (XVI), wherein R¹、R¹’、R²、R³And R⁴As defined in any one of claims 1 to 9,

11. use of a compound according to any one of claims 1 to 9 for the preparation of a therapeutically active substance.

12. A pharmaceutical composition comprising a compound according to any one of claims 1 to 9 and a therapeutically inert carrier.

13. Use of a compound according to any one of claims 1 to 9 for the manufacture of a medicament for the treatment or prevention of an ophthalmic condition.

14. A compound according to any one of claims 1 to 9, when manufactured according to a process of claim 10.