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WO2012125667A1 - Inhibiteurs de kinase trka, compositions et procédés associés - Google Patents

Inhibiteurs de kinase trka, compositions et procédés associés Download PDF

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Publication number
WO2012125667A1
WO2012125667A1 PCT/US2012/028977 US2012028977W WO2012125667A1 WO 2012125667 A1 WO2012125667 A1 WO 2012125667A1 US 2012028977 W US2012028977 W US 2012028977W WO 2012125667 A1 WO2012125667 A1 WO 2012125667A1
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Prior art keywords
phenyl
chr
alkyl
triazolo
optionally substituted
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PCT/US2012/028977
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English (en)
Inventor
Ahren Green
Yiwei Li
Shawn Stachel
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Merck Sharp & Dohme Corp.
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Publication of WO2012125667A1 publication Critical patent/WO2012125667A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
    • C07D471/04—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
    • C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
    • C07D487/04—Ortho-condensed systems

Definitions

  • the invention is directed to a class of substituted pyridotriazole and benztriazole compounds, their salts, pharmaceutical compositions comprising them and their use in therapy of the human body.
  • the invention is directed to a class of substituted pyridotriazole and benztriazole compounds, which are tropomyosin-related kinase (Trk) family protein kinase inhibitors, and hence are useful in the treatment of pain, inflammation, cancer, restenosis, atherosclerosis, psoriasis, thrombosis, a disease, disorder, injury, or malfunction relating to dysmyelination or demyelination or a disease or disorder associated with abnormal activities of nerve growth factor (NGF) receptor TrkA.
  • Trk tropomyosin-related kinase
  • Trks are high affinity binding protein kinase receptors that are activated by Neurotrophins (NT), a group of soluble growth factors Nerve Growth Factor (NGF), Brain-Derived
  • Trk Neurotrophic Factor
  • NT 3-5 Neurotrophin 3-5
  • the Trk's are made up of three family members TrkA, TrkB and TrkC that bind to and mediate the the signal transduction derived from the Neurotrophins.
  • NGF activates TrkA, BDNF and NT-4/5 activate TrkB and NT3 activates TrkC.
  • Inhibitors of the Trk neutrophin pathway have been demonstrated to be highly effective in numerous pre-clinical animal models of pain.
  • Antagonistic NGF and TrkA antibodies have been shown to be efficacious in inflammatory and neuropathic pain animal models and in human clinical trials. See Woolf, C.J. et al. (1994) Neuroscience 62, 327-331 ; Zahn, P.K. et al. (2004) J. Pain 5, 157-163; McMahon, S. B. et al, (1995) Nat. Med. 1, 774-780; Ma, Q.P. and Woolf, C. J. (1997) Neuroreport 8, 807-810; Shelton, D. L. et al. (2005) Pain 1 16, 8-16; Delafoy, L.
  • Trka-NGF interaction was found to be required for the survival of certain peripheral neuron populations involved in mediating pain signaling in the case of pancreatic cancer - an increase in the expression of TrkA was shown to correlate with an increase level of pain signaling (Zhu et al., Journal of Clinical oncology, 17:2419-2428 (1999)).
  • Trk inhibitors that can induce apotosis of proliferating osteoblast may be useful in treating diseases related to an imbalance of the regulation of bone remodeling, such as osteoporosis, rheumatoid arthritis and bone metastases.
  • the expression of TrKa and TrkC receptors in the bone forming area in mouse models of bone facture and localization of NGF in almost all bone forming cells have been observed ( . Asaumi, et al., Bone (2000) 26(6) 625- 633). See also Exper Opin. Ther. Patents (2009) 19(3)), WO2006/115452 and WO2006/087538, W0 123113 , WO 10033941 , WO 10077680, WO2005110994, Investigational New Drugs
  • Trk inhibitors in the treatment of inflammatory lung diseases such as asthma (Freund-Michel, V; et al, Pharmacology & Therapeutics (2008), 117(1), 52-76), interstitial cystitis (Hu Vivian Y; et . al., J of Urology (2005, 173(3), 1016-21), inflammatory bowel disease including ulcerative colitis and Chron's disease (Di Mola, F, F., et al., Gut (2000), 46(5), 670-678 and inflammatory skin diseases such as atopic dermatitis (Dou, Y.C., et.
  • asthma Freund-Michel, V; et al, Pharmacology & Therapeutics (2008), 117(1), 52-76
  • interstitial cystitis Hu Vivian Y; et . al., J of Urology (2005, 173(3), 1016-21
  • inflammatory bowel disease including ulcerative colitis and Chron's disease (Di Mola, F, F., e
  • the compounds of the invention which are Trk inhibitors, are believed to be useful in the treatment of multiple types of acute and chronic pain including but not limited to inflammatory pain, neuropathic pain, and pain associated with cancer, surgery and bone fracture.
  • the compounds may also useful in the treatment of cancer, inflammation, neurodegenerative diseases and certain infectious diseases.
  • the present invention is directed to compounds of generic formula (I) below or pharmaceutically acceptable salts thereof that are useful as a Trk kinase mediator of NGF driven biological responses, an inhibitor of TrkA and other Trk kinases.
  • the invention is further directed to methods of treating a patient (preferably a human) for diseases or disorders in which the NGF receptor Trk kinases are involved, in particular TrkA.
  • the invention further involves use of the compounds as NGF receptor TrkA inhibitor and/or antagonist for the preparation of a medicament for the treatment and/or prevention of diseases associated with inhibiting TrKA, which includes pain, cancer, restenosis, atherosclerosis, psoriasis, thrombosis, or a disease, disorder, or injury relating to dysmyelination or
  • the invention is also directed to pharmaceutical compositions which include an effective amount of a compound of formula (1), or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier, and the use of the compounds and pharmaceutical compositions of the invention in the treatment of such diseases.
  • X is -N or -CH
  • R represents hydrogen or -Ci-ga!kyl
  • R3 represents -Ci-6 alkyl, -NR1'R2', -NRCORl, -NRC0 2 Rl, -NR
  • Ra represents -CN, N0 2 , -Ci_4ha!oalkyi 5 -OCi-4haloalkyl, -Ci-galkyl, -Ci-6alkenyl, -Cl- ealkynyl, -(CHR) n C6-10 aryl -(CHR) n C5-l0 heterocycle, -O-C6-10 aryl, -O-C5-10 heterocycle, -0-, -C(0)CFs > -(CH2) n halo, -OR, -NRRl, -NRCORl, -NRC0 2 Rl, ⁇ NRS0 2 Rl, - NRCONRl R2 s -COR! , -C0 2 Rl , or -CONRl R2, said aryl and heterocycle optionally substituted with 1 to 3 groups of Rb;
  • Rb represents, -Ci-6alkyl,halo, SO2R 3 , NRSO2R 3 , and n represents 0-6.
  • X is -N-.
  • Rl is hydrogen, C ⁇ .(> alkyl, (CHR) n C6-10 aryl, or (CHR) n C5- 10 heterocycle, said alkyl, aryl, and heterocycle optionally substituted with 1 to 3 groups of a; and all other variables are as originally described.
  • Rl is hydrogen and all other variables are as originally described.
  • Rl is Ci -6 alkyl, and all other variables are as originally described.
  • Rl is (CHR) n C6-10 ar l, and all other variables are as originally described.
  • Rl is (CHR) n C5-i0 heterocycle, and all other variables are as originally described.
  • R 2 is hydrogen, Ci-6 alkyl, (CHR) n C6-10 aryl, or (CHR) n C5_ 10 heterocycle, said alkyl, aryl, and heterocycle optionally substituted with 1 to 3 groups of Ra; and all other variables are as originally described.
  • R2 is hydrogen and all other variables are as originally described.
  • R is C ⁇ _6 alkyl, and all other variables are as originally described.
  • R is (CHR) n C6-10 aryl, and all other variables are as originally described.
  • R is (CHR) n C5-io heterocycle, and all other variables are as originally described.
  • Rl and R are not the same.
  • one of R and R is hydrogen or methyl and the other is not.
  • Rl and R combine with the nitrogen to which they are attached to form a 3 to 6 membered cyclic ring and all other variables are as originally described.
  • Rl and R2 together with the nitrogen to which they are attached combine to form an pyrrolidinyl optionally substituted with 1 to 3 groups of R4,
  • the pyrrolidinly is substituted with phenyl, said phenyl being optionally substituted with 1 to 3 groups of R a .
  • Rl and R2 combine to form a pyrrolidinly substituted with an optionally substituted phenyl and X is -N.
  • Rl and R2 combine to form a substituted pyrrolidinly substituted with an optionally substituted (CH2)nphenyl and X is -CH.
  • R3 is NRl 'R2'.
  • a subembodiment of this aspect of the invention is realized when Rl' and R2 ! are not the same.
  • Another subembodiment of this aspect of the invention is realized when Rl' and R ' combine with the nitrogen they are attached to form a 3 to 6 membered cyclic ring which is optionally substituted.
  • R3 is (CHR) n C5_io heterocycle, said heterocycle optionally substituted with 1 to 3 groups of R a , all other variables are as originally described.
  • Another subembodiment of this aspect of the invention is realized when n is 0. Still another
  • heterocycle is morpholinyl or a piperazinyl optionally substutted with 1 to 3 gorups of R 3 ⁇ 4
  • n is 0 to 4, preferably 0 to 3 and more preferably 0 to 2.
  • Rl and R2 are hydrogen or Ci_ 6 alkyl and the other is C 1 -6 alkyl, (CHR) n C6-10 aryl, (CHR) n C5_io heterocycle, said alkyl, aryl, and heterocycle optionally substituted with 1 to 3 groups of R a .
  • Another embodiment of formula II is realized when one of Rl and R is hydrogen or Ci_ 6 alkyl and the other is optionally substituted Ci- alkyl, (CHR)nphenyl, or (CHR)npyridyl.
  • Rl and R2 are hydrogen or C ⁇ . 6 alkyl and the other is optionally substituted Cl-6 alkyl, (CHR)nphenyl, or (CHR)npyridyl, Y is -NR, or -0-, X is -N or -CH, and R is hydrogen or -C i -6alkyl.
  • Rl and 2 is hydrogen or Ci_ 6 alkyl and the other is optionally substituted Cl-6 alkyl, (CHR)nphenyl, or (CHR) n pyridyl, Y is -NR, X is -N or -CH, and R is hydrogen or -Cl-6alkyl.
  • Rl and R2 are hydrogen or C ⁇ . alkyl and the other is optionally substituted C i - alkyl, (CHR)nphenyl, or (CHR)npyridyl, Y is-0-, and X is -N or -CH.
  • Another embodiment of formula II is realized when one of Rl and R2 is hydrogen or Ci_ 6 alkyl and the other is optionally substituted Ci - alkyl, (CHR)nphenyl, or (CHR)npyridyl, Y is -NR, or -0-, X is -N and R is hydrogen or -C i-galkyl.
  • Ci- alkyl (CHR)nphenyl, or (CHR) n pyridyl
  • Y is -NR, or -0-
  • X is-CH
  • R is hydrogen or -Ci_6alkyL
  • Rl and R2 combine with the nitrogen to which they are attached to form a 3 to 6 membered cyclic ring optionally substituted with 1 to 3 groups of
  • Another embodiment of formula Ila is realized when Y is -0-, Anothr embodiment of formula Ila is realized when Rl is (CHR) N C6-io aryl, or
  • Still another embodiment of formula Ila is realized when Y is -NR, R is CH3, the aryl of R1 is an optionally substituted phenyl and X is -N; or Y is -NR, R is CH3, the aryl of Rl is an optionally substituted phenyl, and X is -CH,
  • Examples of compounds of this invention include those in Table 1 :
  • the invention is also directed to methods of treating a patient (preferably a human) for diseases or disorders in which the TrkA receptor is involved, such as pain, inflammation, cancer, restenosis, atherosclerosis, psoriasis, thrombosis, a disease, disorder, injury, or malfunction relating to dysmyelination or demyelination or a disease or disorder associated with abnormal activities of nerve growth factor (NGF) receptor TrkA, by administering to the patient a therapeutically effective amount of a compound of the invention, or a pharmaceutically acceptable salt thereof.
  • diseases or disorders in which the TrkA receptor is involved such as pain, inflammation, cancer, restenosis, atherosclerosis, psoriasis, thrombosis, a disease, disorder, injury, or malfunction relating to dysmyelination or demyelination or a disease or disorder associated with abnormal activities of nerve growth factor (NGF) receptor TrkA
  • the invention is also directed to the use of a compound of the invention for treating a disease or disorder in which the TrkA receptor is involved, such as pain, inflammation, cancer, restenosis, atherosclerosis, psoriasis, thrombosis, a disease, disorder, injury, or malfunction relating to dysmyelination or demyelination or a disease or disorder associated with abnormal activities of nerve growth factor (NGF) receptor TrkA, by administering to the patient a compound of the invention, or a pharmaceutically acceptable salt thereof.
  • a disease or disorder in which the TrkA receptor is involved such as pain, inflammation, cancer, restenosis, atherosclerosis, psoriasis, thrombosis, a disease, disorder, injury, or malfunction relating to dysmyelination or demyelination or a disease or disorder associated with abnormal activities of nerve growth factor (NGF) receptor TrkA
  • the invention is also directed to medicaments or pharmaceutical compositions for the treatment of diseases or disorders in a patient (preferably a human) in which the TrkA receptor is involved, such as pain, inflammation, cancer, restenosis, atherosclerosis, psoriasis, thrombosis, a disease, disorder, injury, or malfunction relating to dysmyelination or demyelination or a disease or disorder associated with abnormal activities of nerve growth factor (NGF) receptor TrkA, which comprise a compound of the invention, or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier.
  • NGF nerve growth factor
  • the invention is also directed to a method for the manufacture of a medicament or a pharmaceutical composition for treating diseases in which TrkA receptor is involved, such as pain, inflammation, cancer, restenosis, atherosclerosis, psoriasis, thrombosis, a disease, disorder, injury, or malfunction relating to dysmyelination or demyelination or a disease or disorder associated with abnormal activities of nerve growth factor (NGF) receptor TrkA comprising combining a compound of the inventionor a pharmaceutically acceptable salt thereof, with a pharmaceutically acceptable carrier.
  • NGF nerve growth factor
  • variable occurs more than once in any formula of the invention, or in a substituent thereof, the individual occurrences of that variable are independent of each other, unless otherwise specified. Also, combinations of substituents/or variables are permissible only if such combinations result in stable compounds.
  • alkyl by itself or as part of another substituent, means a saturated straight or branched chain hydrocarbon radical having the number of carbon atoms designated (e.g., C ⁇ . ⁇ Q alkyl means an alkyl group having from one to ten carbon atoms).
  • Preferred alkyl groups for use in the invention are Ci-6 alkyl groups, having from one to six atoms.
  • Exemplary alkyl groups include methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert- butyl, pentyl, hexyl, and the like.
  • Co alkyl means a bond.
  • alkenyl by itself or as part of another substituent, means a straight or branched chain hydrocarbon radical having a single carbon-carbon double bond and the number of carbon atoms designated (e.g., C2-10 alkenyl means an alkenyl group having from two to ten carbon atoms).
  • Preferred alkenyl groups for use in the invention are C2-6 alkenyl groups, having from two to six carbon atoms.
  • Exemplary alkenyl groups include ethenyl and propenyl.
  • cycloalkyl by itself or as part of another substituent, means a saturated cyclic hydrocarbon radical having the number of carbon atoms designated (e.g., C 3.12 cycloalkyl means a cycloalkyl group having from three to twelve carbon atoms).
  • C 3.12 cycloalkyl means a cycloalkyl group having from three to twelve carbon atoms.
  • cycloalkyl as used herein includes mono-, bi- and tricyclic saturated carbocycles, spirocycles, and bridged and fused ring carbocycles.
  • Preferred cycloalkyl groups for use in the invention are monocyclic C3-8 cycloalkyl groups, having from three to eight carbon atoms.
  • Exemplary monocyclic cycloalkyl groups include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl and the like.
  • Exemplary bridged cycloalkyl groups include adamantyl and norbornyl.
  • Exemplary fused cycloalkyl groups include decahydronaphthalene.
  • aryl by itself or as part of another substituent, means an aromatic cyclic hydrocarbon radical. Preferred aryl groups have from six to ten carbons atoms. The term “aryl” includes multiple ring systems as well as single ring systems. Preferred aryl groups for use in the invention include phenyl and naphthyl.
  • aryl also includes fused cyclic hydrocarbon rings which are partially aromatic (i.e., one of the fused rings is aromatic and the other is non-aromatic).
  • An exemplary aryl group which is partially aromatic is indanyl.
  • heterocyclyl, heterocycle or heterocyclic represents a stable 5- to 7-membered monocyclic or stable 8- to 1 1-membered bicyclic heterocyclic ring which is either saturated or unsaturated, and which consists of carbon atoms and from one to four heteroatoms selected from the group consisting of N, O, and S, and including any bicyclic group in which any of the above-defined heterocyclic rings is fused to a benzene ring.
  • the heterocyclic ring may be attached at any heteroatom or carbon atom which results in the creation of a stable structure.
  • heterocyclyl, heterocycle or heterocyclic includes heteroaryl moieties.
  • heterocyclic elements include, but are not limited to, azepinyl, benzodioxolyl, benzimidazolyl, benzisoxazolyl, benzofurazanyl, benzopyranyl, benzothiopyranyl, benzofuryl, benzothiazolyl, benzothienyl, benzotriazolyly, benzoxazolyl, chromanyl, cinnolinyl,
  • heteroaryl represents a stable 5- to 7- membered monocyclic- or stable 9- to 10-membered fused bicyclic heterocyclic ring system which contains an aromatic ring, any ring of which may be saturated, such as piperidinyl, partially saturated, or unsaturated, such as pyridinyl, and which consists of carbon atoms and from one to four heteroatoms selected from the group consisting of N, O and S, and wherein the nitrogen and sulfur heteroatoms may optionally be oxidized, and the nitrogen heteroatom may optionally be quaternized, and including any bicyclic group in which any of the above-defined heterocyclic rings is fused to a benzene ring.
  • the heterocyclic ring may be attached at any heteroatom or carbon atom which results in the creation of a stable structure.
  • heteroaryl groups include, but are not limited to, benzimidazole, benzisothiazole, benzisoxazole, benzofuran, benzothiazole, benzothiophene, benzotriazole, benzoxazole, carboline, cinnoline, furan, furazan, imidazole, indazole, indole, indolizine, isoquinoline, isothiazole, isoxazole, naphthyridine, oxadiazole, oxazole, phthalazine, pteridine, purine, pyran, pyrazine, pyrazole, pyridazine, pyridine, pyrimidine, pyrrole, quinazoline, quinoline, quinoxaline, tetrazole, thiadiazole, thiazole,
  • the substituent may be bonded to a ring carbon atom of the heteroaryl group, or on a ring heteroatom (i.e., a nitrogen, oxygen or sulfur), which has a valence which permits substitution.
  • the substituent is bonded to a ring carbon atom.
  • the point of attachment may be at a ring carbon atom of the heteroaryl group, or on a ring heteroatom
  • the attachment is at a ring carbon atom.
  • halo or “halogen” includes fluoro, chioro, bromo and iodo.
  • substituted alkyl, substituted cycloalkyl, substituted aryl, substituted heteroaryl, and substituted heterocycle include moieties containing from 1 to 3 substituents in addition to the point of attachment to the rest of the compound.
  • such substituents are selected from the group which includes but is not limited to F 5 CI, Br, CF 3 , N3 ⁇ 4, N(C r C 6 alkyl) 2 , N0 2 , CN, (C r C 6 alkyl)0-, (aryl)O-, -OH, (C i -C 6 alkyl)S(0) m -, (C j -C 6 alkyl)C(0)NH- > H 2 N-C(NH)-, (C j -C 6 alkyl)C(O)-, (C ⁇ -C 6 alkyl)OC(O)-, (C j -Cg alkyl)OC(0)NH-, phenyl, pyridyl, imidazolyl, oxazolyl, isoxazolyl, thiazolyl, thienyl, furyl, isothiazolyl and Ci-C 2 0 alkyl.
  • the compounds of the invention may have one or more asymmetric centers. Compounds with asymmetric centers give rise to enantiomers (optical isomers), diastereomers
  • racemic mixtures of the compounds may be separated so that the individual enantiomers or diastereomers are isolated.
  • the separation can be carried out by methods well known in the art, such as the coupling of a racemic mixture of compounds to an enantiomericaliy pure compound to form a diastereomeric mixture, followed by separation of the individual diastereomers by standard methods, such as fractional crystallization or chromatography.
  • the coupling reaction is often the formation of salts using an enantiomericaliy pure acid or base.
  • the diastereomeric derivatives may then be converted to the pure enantiomers by cleavage of the added chiral residue.
  • racemic mixture of the compounds can also be separated directly by chromatographic methods using chiral stationary phases, which methods are well known in the art.
  • any enantiomer or diastereomer of a compound may be obtained by stereoselective synthesis using optically pure starting materials or reagents of known
  • the atoms may exhibit their natural isotopic abundances, or one or more of the atoms may be artificially enriched in a particular isotope having the same atomic number, but an atomic mass or mass number different from the atomic mass or mass number predominantly found in nature.
  • the present invention is meant to include all suitable isotopic variations of the compounds of generic formulae (I).
  • different isotopic forms of hydrogen (H) include protium (iH) and deuterium (3 ⁇ 4).
  • Protium is the predominant hydrogen isotope found in nature. Enriching for deuterium may afford certain therapeutic advantages, such as increasing in vivo half-life or reducing dosage requirements, or may provide a compound useful as a standard for characterization of biological samples.
  • Isotopicaily-enriched compounds within generic formulae (I) can be prepared without undue experimentation by conventional techniques well known to those skilled in the art or by processes analogous to those described in the Schemes and Examples herein using appropriate isotopicaily-enriched reagents and/or intermediates.
  • substantially pure means that the isolated material is at least 90% pure, and preferably 95% pure, and even more preferably 99% pure as assayed by analytical techniques known in the art.
  • TrkA refers to one of Trk's high affinity binding protein kinase receptors that are activated by Neurotrophins (NT), a group of soluble growth factors Nerve Growth Factor (NGF), Brain-Derived Neurotrophic Factor (BDNF) and Neurotrophin 3-5 (NT 3-5).
  • the Trk's are made up of three family members TrkA, TrkB and TrkC that bind to and mediate the the signal transduction derived from the Neurotrophins. Inhibitors of the Trk/neutrophin pathway have been demonstrated to be highly effective in numerous preclinical animal models of pain.
  • the compounds of the invention are modulators of the Trk receptors, particularly TrkA.
  • non-toxic bases or acids including inorganic or organic bases and inorganic or organic acids.
  • the compounds of the invention may be mono, di or tris salts, depending on the number of acid functionalities present in the free base form of the compound.
  • Free bases and salts derived from inorganic bases include aluminum, ammonium, calcium, copper, ferric, ferrous, lithium, magnesium, manganic salts, manganous, potassium, sodium, zinc, and the like.
  • Salts in the solid form may exist in more than one crystal structure, and may also be in the form of hydrates.
  • Salts derived from pharmaceutically acceptable organic non-toxic bases include salts of primary, secondary, and tertiary amines, substituted amines including naturally occurring substituted amines, cyclic amines, and basic ion exchange resins, such as arginine, betaine, caffeine, choline, N,N-dibenzylethylene-diamine, diethylamine, 2-diethylaminoethanol, 2-dimethylaminoethanol, ethanolamine, ethylenediamine, N-ethylmorpholine, N-ethylpiperidine, glucamine, glucosamine, histidine, hydrabamine, isopropylamine, lysine, methylglucamine, morpholine, piperazine, piperidine, polyamine resins, procaine, purines, theobromine, triethylamine, trimethylamine
  • salts may be prepared from pharmaceutically acceptable non-toxic acids, including inorganic and organic acids.
  • acids include acetic, trifluoroacetic, benzenesulfonic, benzoic, camphorsulfonic, citric, ethanesuifonic, fumaric, gluconic, glutamic, hydrobromic, hydrochloric, isethionic, lactic, maleic, malic, mandelic, methanesulfonic, mucic, nitric, pamoic, pantothenic, phosphoric, succinic, sulfuric, tartaric, j oar -toluenesulfonic acid, and the like.
  • the present invention is directed to the use of the compounds of formula (I) disclosed herein as TrkA inhibitors in a patient or subject such as a mammal in need of such activity, comprising the administration of an effective amount of the compound.
  • TrkA inhibitors in a patient or subject such as a mammal in need of such activity, comprising the administration of an effective amount of the compound.
  • a variety of other mammals can be treated according to the method of the present invention.
  • the compounds of the present invention have utility in treating or ameliorating pain disorders (including pain associated with cancer, surgery, and bone fracture, acute pain, inflammatory pain and neuropathic pain).
  • the compounds of formula I are also useful for treating cancers including neuroblastoma, ovarian, pancreatic and colorectal cancer.
  • Other conditions that may be treated by the compounds of the invention include inflammation and certain infectious diseases, interstitial cystitis, painful bladder syndrome, urinary incontinence, asthma, anorexia, atopic dermatitis, and psoriasis. Treament of demyelination and
  • dysmyelination by promoting myelination, neuronal survival, and oligodendrocyte
  • the compounds of formula I may also be useful in the treatment of bone-related diseases (e.g., those involved in bone resorption).
  • bone-related diseases include metastatic bone disease, treatment-induce bone loss, osteoporosis, rheumatoid arthritis, ankylosing spondylitis, Paget's disease, and periodontal disease.
  • Another bone disorder or disease that can be treated with the compounds of the claimed invention is metastatic tumor-induced osteolysis.
  • Cancers known to cause tumor induced osteolysis are hematological malignancies such as myeloma and lymphoma and solid tumors such as breast, prostate, lung, renal and thyroid.
  • Pain disorders for which the compounds of the invention may be useful include neuropathic pain (such as postherpetic neuralgia, nerve injury, the "dynias 11 , e.g., vulvodynia, phantom limb pain, root avulsions, painful diabetic neuropathy, painful traumatic pain (such as postherpetic neuralgia, nerve injury, the "dynias 11 , e.g., vulvodynia, phantom limb pain, root avulsions, painful diabetic neuropathy, painful traumatic neuropathic pain (such as postherpetic neuralgia, nerve injury, the "dynias 11 , e.g., vulvodynia, phantom limb pain, root avulsions, painful diabetic neuropathy, painful traumatic pain (such as postherpetic neuralgia, nerve injury, the "dynias 11 , e.g., vulvodyn
  • central pain syndromes (potentially caused by virtually any lesion at any level of the nervous system); postsurgical pain syndromes (eg, postmastectomy syndrome, postthoracotomy syndrome, stump pain); bone and joint pain (osteoarthritis), repetitive motion pain, dental pain, cancer pain, myofascial pain (muscular injury, fibromyalgia); perioperative pain (general surgery, gynecological), chronic pain, dysmennorhea, as well as pain associated with angina, and inflammatory pain of varied origins (e.g.
  • osteoarthritis rheumatoid arthritis, rheumatic disease, teno- synovitis and gout
  • headache migraine and cluster headache, headache, primary hyperalgesia, secondaiy hyperalgesia, primary allodynia, secondary allodynia, or other pain caused by central sensitization.
  • Compounds of the invention may also be used to treat or prevent dyskinesias.
  • compounds of the invention may be used to decrease tolerance and/or dependence to opioid treatment of pain, and for treatment of withdrawal syndrome of e.g., alcohol, opioids, and cocaine.
  • an aspect of the present invention is a method of treating diseases with an inhibitor of Trk-A and/or Trk-B comprising administering to said mammal one or more compounds of formula I or a pharmaceutically acceptable salt thereof in an amount effective to treat or prevent said disorder.
  • a particular aspect of the invention is directed to a method of treating pain, cancer, inflaramation, neurodegenerative disease or Typanosoma cruzi infection by administering to said mammal a therapeutically effective amount of a compound of formula I or a pharmaceutically acceptable salt thereof.
  • Still another aspect of the present invention is directed to a method of treating osteolytic disease in a mammal by administering a
  • mammals include dogs, cats, mice, rats, cattle, horses, sheep, rabbits, monkeys, chimpanzees or other apes or primates, for which treatment of the above noted disorders is desired.
  • the compounds of the present invention may be used in combination with one or more other drugs in the treatment of diseases or conditions for which the compounds of the present invention have utility, where the combination of the drugs together are safer or more effective than either drug alone. Additionally, the compounds of the present invention may be used in combination with one or more other drugs that treat, prevent, control, ameliorate, or reduce the risk of side effects or toxicity of the compounds of the present invention. Such other drugs may be administered, by a route and in an amount commonly used therefor, contemporaneously or sequentially with the compounds of the present invention. Accordingly, the pharmaceutical compositions of the present invention include those that contain one or more other active ingredients, in addition to the compounds of the present invention. The combinations may be administered as part of a unit dosage form combination product, or as a kit or treatment protocol wherein one or more additional drugs are administered in separate dosage forms as part of a treatment regimen.
  • combinations of the compounds include combinations with agents for the treatment of pain, for example steroids such as dexamethasone, cortisone, and fluticasone, non- steroidal anti-inflammatory agents, such as aspirin, diclofenac, duflunisal, fenoprofen, flurbiprofen, ibuprofen, indomethacin, ketoprofen, ketorolac, naproxen, oxaprozin, piroxicam, suiindac and tolmetin; COX-2 inhibitors, such as celecoxib, rofecoxib and valdecoxib; CB-2 agonists; VR-1 antagonists; bradykinin B 1 receptor antagonists; sodium channel blockers and antagonists; nitric oxide synthase (NOS) inhibitors (including iNOS and nNOS inhibitors);
  • steroids such as dexamethasone, cortisone, and fluticasone
  • non- steroidal anti-inflammatory agents
  • glycine site antagonists including lacosamide; neuronal nicotinic agonists; NMD A antagonists; potassium channel openers; AMPA/kainate receptor antagonists; calcium channel blockers, such as ziconotide; GABA-A receptor 10 modulators (e.g., a GABA- A receptor agonist); matrix metalloprotease (MMP) inhibitors; thrombolytic agents; chemotherapeutic agents, opioid analgesics such as codeine, fentanyl, hydromorphone, levorphanol, meperidine, methadone, morphine, oxycodone, oxymorphone, pentazocine, propoxyphene; neutrophil inhibitory factor (NIF); pramipexole, ropinirole; anticholinergics; amantadine; monoamine oxidase B15 (“MAO- B") inhibitors; 5HT receptor agonists or antagonists; mGlu5 antagonists; alpha agonists; neuronal nicotinic agonist
  • Another aspect of the present invention is directed to a pharmaceutical composition
  • a pharmaceutical composition comprising a compound of formula I or a pharmaceutically acceptable salt thereof and a pharmaceutically acceptable diluent or carrier.
  • Still another aspect of the present invention is directed to a compound of formula I or a pharmaceutically acceptable salt thereof, for use in the treatment of a condition treatable with an inhibitor of Trk-A and/or Trk-B, such as the disorders, conditions and/or diseases described herein.
  • Still another aspect is directed to use of a compound of formula I or a pharmaceutically acceptable salt thereof in the treatment of pain, cancer, inflammation, neurodegenerative disease or typanosoma cruzi infection.
  • composition as used herein is intended to encompass a product comprising specified ingredients in predetermined amounts or proportions, as well as any product which results, directly or indirectly, from combination of the specified ingredients in the specified amounts.
  • This term in relation to pharmaceutical compositions is intended to encompass a product comprising one or more active ingredients, and an optional carrier comprising inert ingredients, as well as any product which results, directly or indirectly, from combination, complexation or aggregation of any two or more of the ingredients, or from dissociation of one or more of the ingredients, or from other types of reactions or interactions of one or more of the ingredients.
  • compositions are prepared by uniformly and intimately bringing the active ingredient into association with a liquid carrier or a finely divided solid carrier or both, and then, if necessary, shaping the product into the desired formulation.
  • the active compound which is a compound of formula (I)
  • the pharmaceutical compositions of the present invention encompass any composition made by admixing a compound of the present invention and a pharmaceutically acceptable carrier.
  • the carrier may take a wide variety of forms depending on the form of preparation desired for administration, e.g., oral or parenteral (including intravenous).
  • oral or parenteral including intravenous
  • compositions of the present invention can be presented as discrete units suitable for oral administration such as capsules, cachets or tablets each containing a predetermined amount of the active ingredient. Further, the compositions can be presented as a powder, as granules, as a solution, as a suspension in an aqueous liquid, as a non-aqueous liquid, as an oil- in-water emulsion or as a water-in-oil liquid emulsion.
  • the compounds of the invention, or pharmaceutically acceptable salts thereof may also be administered by controlled release means and/or delivery devices.
  • compositions intended for oral use may be prepared according to any method known to the art for the manufacture of pharmaceutical compositions and such compositions may contain one or more agents selected from the group consisting of sweetening agents, flavoring agents, coloring agents and preserving agents in order to provide
  • Tablets may contain the active ingredient in admixture with non-toxic pharmaceutically acceptable excipients which are suitable for the manufacture of tablets.
  • excipients may be, for example, inert diluents, such as calcium carbonate, sodium carbonate, lactose, calcium phosphate or sodium phosphate; granulating and disintegrating agents, for example, corn starch, or alginic acid; binding agents, for example starch, gelatin or acacia, and lubricating agents, for example magnesium stearate, stearic acid or talc.
  • the tablets may be uncoated or they may be coated by known techniques to delay disintegration and absorption in the gastrointestinal tract and thereby provide a sustained action over a longer period.
  • a tablet containing the composition of this invention may be prepared by compression or molding, optionally with one or more accessory ingredients or adjuvants.
  • Compressed tablets may be prepared by compressing, in a suitable machine, the active ingredient in a free-flowing form such as powder or granules, optionally mixed with a binder, lubricant, inert diluent, surface active or dispersing agent. Molded tablets may be made by molding in a suitable machine, a mixture of the powdered compound moistened with an inert liquid diluent.
  • Each tablet preferably contains from about 0.1 mg to about 500 mg of the active ingredient and each cachet or capsule preferably containing from about 0.1 mg to about 500 mg of the active ingredient.
  • compositions for oral use may also be presented as hard gelatin capsules wherein the active ingredient is mixed with an inert solid diluent, for example, calcium carbonate, calcium phosphate or kaolin, or as soft gelatin capsules wherein the active ingredient is mixed with water or an oil medium, for example peanut oil, liquid paraffin, or olive oil.
  • an inert solid diluent for example, calcium carbonate, calcium phosphate or kaolin
  • water or an oil medium for example peanut oil, liquid paraffin, or olive oil.
  • compositions include aqueous suspensions, which contain the active materials in admixture with excipients suitable for the manufacture of aqueous
  • oily suspensions may be formulated by suspending the active ingredient in a vegetable oil, for example arachis oil, olive oil, sesame oil or coconut oil, or in a mineral oil such as liquid paraffin. Oily suspensions may also contain various excipients.
  • the pharmaceutical compositions of the invention may also be in the form of oii-in-water emulsions, which may also contain excipients such as sweetening and flavoring agents.
  • the pharmaceutical compositions may be in the form of a sterile injectable aqueous or oleaginous suspension, or in the form of sterile powders for the extemporaneous preparation of such sterile injectable solutions or dispersions.
  • the final injectable form must be sterile and must be effectively fluid for easy syringability.
  • the pharmaceutical compositions must be stable under the conditions of manufacture and storage; thus, preferably should be preserved against the contaminating action of microorganisms such as bacteria and fungi.
  • compositions of the present invention can be in a form suitable for topical use such as, for example, an aerosol, cream, ointment, lotion, dusting powder, or the like.
  • compositions can be in a form suitable for use in transdermal devices.
  • These formulations may be prepared via conventional processing methods.
  • a cream or ointment is prepared by mixing hydrophilic material and water, together with about 5 wt% to about 10 wt% of the compound, to produce a cream or ointment having a desired consistency.
  • compositions of this invention can also be in a form suitable for rectal administration wherein the carrier is a solid. It is preferable that the mixture forms unit dose suppositories.
  • suitable carriers include cocoa butter and other materials commonly used in the art.
  • pharmaceutically acceptable it is meant the carrier, diluent or excipient must be compatible with the other ingredients of the formulation and not deleterious to the recipient thereof.
  • administering a should be understood to mean providing a compound of the invention to the individual in need of treatment in a form that can be introduced into that individual's body in a therapeutically useful form and therapeutically useful amount, including, but not limited to: oral dosage forms, such as tablets, capsules, syrups, suspensions, and the like; injectable dosage forms, such as IV, IM, or IP, and the like;
  • transdermal dosage forms including creams, jellies, powders, or patches; buccal dosage forms; inhalation powders, sprays, suspensions, and the like; and rectal suppositories.
  • an effective amount or “therapeutically effective amount” means the amount of the subject compound that will elicit the biological or medical response of a tissue, system, animal or human that is being sought by the researcher, veterinarian, medical doctor or other clinician.
  • treatment means any administration of a compound of the present invention and includes (1) inhibiting the disease in an animal that is experiencing or displaying the pathology or symptomatology of the diseased (i.e., arresting further development of the pathology and/or symptomatology), or (2) ameliorating the disease in an animal that is experiencing or displaying the pathology or symptomatology of the diseased (i.e., reversing the pathology and/or symptomatology).
  • compositions containing compounds of the present invention may conveniently be presented in unit dosage form and may be prepared by any of the methods well known in the art of pharmacy.
  • unit dosage form is taken to mean a single dose wherein all active and inactive ingredients are combined in a suitable system, such that the patient or person
  • unit dosage forms are tablets or capsules for oral administration, single dose vials for injection, or suppositories for rectal administration. This list of unit dosage forms is not intended to be limiting in any way, but merely to represent typical examples of unit dosage forms.
  • compositions containing compounds of the present invention may conveniently be presented as a kit, whereby two or more components, which may be active or inactive ingredients, carriers, diluents, and the like, are provided with instructions for preparation of the actual dosage form by the patient or person administering the drug to the patient.
  • kits may be provided with all necessary materials and ingredients contained therein, or they may contain instructions for using or making materials or components that must be obtained independently by the patient or person administering the drug to the patient.
  • the compounds of the present invention are administered at a daily dosage of from about 0.1 mg to about 100 mg per kg of animal body weight, preferably given as a single daily dose or in divided doses two to six times a day, or in sustained release form.
  • the total daily dosage is from about 1 ,0 mg to about 2000 mg, preferably from about 0.1 mg to about 20 mg per kg of body weight. In the case of a 70 kg adult human, the total daily dose will generally be from about 7 mg to about 1 ,400 mg. This dosage regimen may be adjusted to provide the optimal therapeutic response.
  • the compounds may be administered on a regimen of 1 to 4 times per day, preferably once or twice per day.
  • the amount of active ingredient that may be combined with the carrier materials to produce a single dosage form will vary depending upon the host treated and the particular mode of administration.
  • a formulation intended for the oral administration to humans may conveniently contain from about 0.005 mg to about 2.5 g of active agent, compounded with an appropriate and convenient amount of carrier material.
  • Unit dosage forms will generally contain between from about 0.005 mg to about 1000 mg of the active ingredient, typically 0.005, 0.01 mg, 0.05 mg, 0.25 mg, 1 mg, 5 mg, 25 mg, 50 mg, 100 mg, 200 mg, 300 mg, 400 mg, 500 mg, 600 mg, 800 mg or 1000 mg, administered once, twice or three times a day.
  • the compounds of this invention may be prepared by employing reactions as shown in the following schemes, in addition to other standard manipulations that are known in the literature or exemplified in the experimental procedures. Substituent numbering as shown in the schemes does not necessarily correlate to that used in the claims and often, for clarity, a single substituent is shown attached to the compound where multiple substituents are allowed under the definitions hereinabove. Reactions used to generate the compounds of this invention are prepared by employing reactions as shown in the schemes and examples herein, in addition to other standard manipulations such as ester hydrolysis, cleavage of protecting groups, etc., as may be known in the literature or exemplified in the experimental procedures.
  • any of the synthetic sequences it may be necessary or desirable to protect sensitive or reactive groups on any of the molecules concerned. This may be achieved by means of conventional protecting groups, such as those described in Protective Groups in Organic Chemistry, ed. J.F.W.McOmie, Plenum Press, 1973, and T.W. Greene & P/G.M. Wuts,
  • the protecting groups may be removed at a convenient sequent stage using methods known from the art.
  • the final product may be further modified, for example, by manipulation of substituents. These manipulations may include, but are not limited to, reduction, oxidation, alkylation, acylation, and hydrolysis reactions which are commonly known to those skilled in the art.
  • the order of carrying out the foregoing reaction schemes may be varied to facilitate the reaction or to avoid unwanted reaction products.
  • the following examples are provided so that the invention might be more fully understood. These examples are illustrative only and should not be construed as limiting the invention in any way.
  • DMEM Dulbecco's Modified Eagle Medium (High Glucose)
  • Reaction Scheme I illustrates the preparation of the compounds of the instant invention, starting with a commercially available carboxylic acid I-l . This material can be converted to the corresponding carboxy hydrazide 1-2. Intermediate 1-2 reacts with dichloropyridazine under acidic conditions to produce 1-3. 1-3 can then undergo substitution, in parallel, with a diverse array of amines to provide 1-4.
  • Reaction Scheme II illustrates the preparation of the compounds of the instant invention, starting with a commercially available pyridine chloride II- 1. This material reacts with hydrazine II-2 to provide to the corresponding hydrozinylpyridine ⁇ -3. Intermediate ⁇ -3 reacts with carboxylic acid in the presence of trichloroacetonitrile and triphenylphosphine to produce II-4. II- 4 can then undergo substitution, in parallel, with a diverse array of amines to provide II-5.
  • N-(2,5-difluorobenzyl)-3-[4-(morpholin-4-yl)phenyl][l,2,4]triazolo[4,3- j]pyridazin-6-amine (1- 4) -Chloro-3-[4-(mo holin-4-yl) henyl3[l > 2,4]triazolo[4,3-&]py ⁇ dazine (17 mg, 0.054 mmol), 2,5-difluorobenzylamine (38.5 mg, 0.269 mmol) was added in a 1 mL EtOH.
  • TrkA kinase activity was measured as the ability of the enzyme to phosphorylate a fluorescently labeled peptide substrate.
  • Buffer salts, reagents, and fluorescently labeled peptides were purchased from Carna Biosciences and were of the highest quality available (QSS Assist TRKA_MSA Kit). Enzyme was purchased from Cell Signaling, and was used without further purification. 384-weIl round bottom assay plates were prepared by the addition of 200 nl of a DMSO solution of compound at various concentrations to final inhibitor concentrations ranging from 100 ⁇ to 0.2 ⁇ Next, assay buffer (10 ⁇ ) containing substrate and ATP were added, followed by addition of 10 ⁇ of enzyme in assay buffer.
  • ICSO values from the aforementioned assay for the compounds of this invention range between 20 nM to 10000 nM.
  • ICSO values for particular compounds of this invention are provided below in Table 2 below:

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Abstract

La présente invention concerne des composés pyridotriazoles et benzatriazoles, de la formule (I), qui sont des inhibiteurs de protéines kinases de la famille des kinases apparentées à la tropomyosine (Trk), et, par conséquent, qui sont utiles dans le traitement de la douleur, de l'inflammation, du cancer, de la resténose, de l'athérosclérose, du psoriasis, d'une thrombose, d'une maladie, d'un trouble, d'une lésion ou d'un dysfonctionnement associé à la myélinisation ou à la démyélinisation ou d'une maladie ou d'un trouble associé à des activités anormales du récepteur TrkA du facteur de croissance nerveux (NGF).
PCT/US2012/028977 2011-03-17 2012-03-14 Inhibiteurs de kinase trka, compositions et procédés associés WO2012125667A1 (fr)

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Cited By (5)

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WO2013183578A1 (fr) 2012-06-04 2013-12-12 第一三共株式会社 DÉRIVÉ D'IMIDAZO[1,2-b]PYRIDAZINE COMME INHIBITEUR DE KINASE
CN108794484A (zh) * 2018-04-28 2018-11-13 北京施安泰医药技术开发有限公司 [1,2,4]三唑并[4,3-a]吡嗪衍生物、其药物组合物、制备方法和应用
JP2020529465A (ja) * 2017-08-11 2020-10-08 テリジーン リミテッドＴｅｌｉｇｅｎｅ Ｌｔｄ． キナーゼ阻害剤として有用な置換ピラゾロピリミジン
CN113354649A (zh) * 2014-11-16 2021-09-07 阵列生物制药公司 一种新的晶型
WO2023150793A1 (fr) * 2022-02-07 2023-08-10 Cornell University Inhibiteurs d'enzyme malique 1

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WO2009140128A2 (fr) * 2008-05-13 2009-11-19 Irm Llc Composés et compositions servant d'inhibiteurs de kinases

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US7268136B2 (en) * 2002-12-18 2007-09-11 Vertex Pharmaceuticals Incorporated Compositions useful as inhibitors of protein kinases
US20090215817A1 (en) * 2004-08-18 2009-08-27 Pfizer Inc Novel Triazolopyridine Compounds for the Treatment of Inflammation
WO2009140128A2 (fr) * 2008-05-13 2009-11-19 Irm Llc Composés et compositions servant d'inhibiteurs de kinases

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013183578A1 (fr) 2012-06-04 2013-12-12 第一三共株式会社 DÉRIVÉ D'IMIDAZO[1,2-b]PYRIDAZINE COMME INHIBITEUR DE KINASE
US9187489B2 (en) 2012-06-04 2015-11-17 Daiichi Sankyo Company, Limited Imidazo[1,2-b]pyridazine derivatives as kinase inhibitors
US9751887B2 (en) 2012-06-04 2017-09-05 Daiichi Sankyo Company, Limited Imidazo[1,2-b]pyridazine derivatives as kinase inhibitors
CN113354649A (zh) * 2014-11-16 2021-09-07 阵列生物制药公司 一种新的晶型
CN113354649B (zh) * 2014-11-16 2024-12-10 阵列生物制药公司 一种新的晶型
JP2020529465A (ja) * 2017-08-11 2020-10-08 テリジーン リミテッドＴｅｌｉｇｅｎｅ Ｌｔｄ． キナーゼ阻害剤として有用な置換ピラゾロピリミジン
CN108794484A (zh) * 2018-04-28 2018-11-13 北京施安泰医药技术开发有限公司 [1,2,4]三唑并[4,3-a]吡嗪衍生物、其药物组合物、制备方法和应用
WO2023150793A1 (fr) * 2022-02-07 2023-08-10 Cornell University Inhibiteurs d'enzyme malique 1

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