US20160052926A1 - Novel pyrimidine and pyridine compounds and usage thereof - Google Patents

Novel pyrimidine and pyridine compounds and usage thereof Download PDF

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US20160052926A1
US20160052926A1 US14/775,649 US201314775649A US2016052926A1 US 20160052926 A1 US20160052926 A1 US 20160052926A1 US 201314775649 A US201314775649 A US 201314775649A US 2016052926 A1 US2016052926 A1 US 2016052926A1
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alkyl
optionally substituted
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Wei-guo Su
Weihan Zhang
Jinshui Li
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Hutchmed Ltd
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Hutchison Medipharma Ltd
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    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00—Antineoplastic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P5/00—Drugs for disorders of the endocrine system
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    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/32—One oxygen, sulfur or nitrogen atom
    • C07D239/42—One nitrogen atom
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
    • C07D401/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
    • C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
    • C07D403/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
    • C07D403/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
    • C07D405/06—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
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    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
    • C07D405/10—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
    • C07D405/12—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/14—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
    • C07D413/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
    • C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
    • C07D417/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
    • 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

Definitions

  • the present invention relates to novel pyrimidine and pyridine compounds, pharmaceutical compositions containing them, a process for preparing them, and their use in therapy.
  • Fibroblast growth factor has been recognized as an important mediator in many physiological processes.
  • the fibroblast growth factor receptor family of receptor tyrosine kinases consists of four members (FGFR1, FGFR2, FGFR3, and FGFR4).
  • Fibroblast growth factors (FGF) and their receptors (FGFR) play important roles in cell proliferation, cell differentiation, cell migration, cell survival, protein synthesis, and angiogenesis. There are many evidences directly linking FGF signaling to cancer.
  • Dysregulation of FGFR signaling has been implicated in a number of cancers, including squamous non-small cell lung cancer (NSCLC), small cell lung cancer (SCLC), gastric, liver, breast, ovarian, endometrial, and bladder carcinomas, such as FGFR1 has been be found to be amplified in 22% squamous NSCLC, FGFR2 amplifications have been reported in up to 10% gastric cancers, and FGFR3 mutation have been found in approximately 50-60% nonmuscle invasion and 17% of high-grade bladder cancers, fueling significant interest in FGFRs as targets for therapeutic intervention.
  • NSCLC non-small cell lung cancer
  • SCLC small cell lung cancer
  • gastric liver, breast, ovarian, endometrial, and bladder carcinomas
  • FGFR1 has been be found to be amplified in 22% squamous NSCLC
  • FGFR2 amplifications have been reported in up to 10% gastric cancers
  • FGFR3 mutation have been
  • the present invention provides a compound of formula (I):
  • composition comprising at least one compound of formula (I) and/or at least one pharmaceutically acceptable salt thereof described herein and optionally at least one pharmaceutically acceptable carrier.
  • Also provided is a method of in dry or in vitro inhibiting the activity of FGFR comprising contacting FGFR with an effective amount of at least one compound of formula (I) and/or at least one pharmaceutically acceptable salt thereof described herein.
  • Also provided is a method of treating a disease responsive to inhibition of FGFR comprising administering to a subject in need thereof an effective amount to treat said disease of at least one compound of formula (I) and/or at least one pharmaceutically acceptable salt thereof described herein.
  • a dash (“-”) that is not between two letters or symbols is used to indicate a point of attachment for a substituent.
  • —C(O)NH 2 is attached through the carbon atom.
  • alkyl refers to a straight or branched saturated hydrocarbon radical, containing 1-18, preferably 1-12, more preferably 1-6, further preferably 1-4, especially 1-3 carbon atoms.
  • alkyl groups include, but are not limited to, methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, s-butyl and t-butyl.
  • alkoxy refers to the group —O-alkyl, wherein the alkyl is as defined above.
  • alkoxy groups include, but are not limited to, methoxy, ethoxy, n-propyloxy, i-propyloxy, n-butyloxy, i-butyloxy, t-butyloxy, pentyloxy, hexyloxy, including their isomers.
  • alkenyl refers to a straight or branched hydrocarbon radical, containing one or more C ⁇ C double bonds and 2-10, preferably 2-6, more preferably 2-4 carbon atoms.
  • alkenyl groups include, but are not limited to, vinyl, 2-propenyl, and 2-butenyl.
  • alkynyl refers to a straight or branched hydrocarbon radical, containing one or more C ⁇ C triple bonds and 2-10, preferably 2-6, more preferably 2-4 carbon atoms.
  • alkynyl groups include, but are not limited to, ethynyl, 2-propynyl, and 2-butynyl.
  • cycloalkyl refers to saturated and partially unsaturated cyclic hydrocarbon radical having 3 to 12, preferably 3 to 8, more preferably 3 to 6 carbon atoms.
  • cycloalkyl groups include, but are not limited to, cyclopropyl, cyclobutyl, cyclopentyl, cyclopentenyl, cyclohexyl, cyclohexenyl, cycloheptyl, and cyclooctyl.
  • the ring of the cycloalkyl group may be saturated or has one or more, for example, one or two double bonds (i.e. partially unsaturated), but not fully conjugated, and not aryl as defined herein.
  • aryl refers to 5- and 6-membered monocyclic carbocyclic aromatic hydrocarbon radical and 8- to 12-membered bicyclic carbocyclic hydrocarbon radical wherein at least one ring is aromatic, for example, phenyl, naphthalenyl, 1,2,3,4-tetrahydronaphthalenyl, indenyl, indanyl, azulenyl.
  • halo as used herein includes fluoro, chloro, bromo, and iodo
  • halogen as used herein includes fluorine, chlorine, bromine, and iodine.
  • heteroaryl refers to aryl
  • heterocyclyl refers to 3- to 14-membered, preferably 4- to 12-membered, monocyclic, bicyclic or tricyclic saturated or partially unsaturated hydrocarbon radical containing at least 2 carbon atoms and 1, 2 or 3 heteroatoms independently selected from oxygen, sulfur, and nitrogen. More preferably, “heterocyclyl” refers to 4- to 8-membered, especially 4-, 5- or 6-membered monocyclic heterocyclyl group containing 1 or 2 heteroatoms independently selected from N, O, and S. “Heterocyclyl” also refers to an aliphatic spirocyclic ring containing one or more heteroatoms independently selected from N, O, and S.
  • the rings may be saturated or have one or more double bonds (i.e. partially unsaturated).
  • the point of the attachment may be carbon or heteroatom in the heterocyclyl group.
  • any of the rings in the heterocylyl group is not aromatic so that the heterocylyl group is not a heteroaryl as defined herein.
  • the heterocyclyl group also includes those wherein the N or S heteroatom occurs as oxide thereof.
  • heterocyclyl examples include, but are not limited to, oxetanyl, such as oxetan-2-yl or oxetan-3-yl; azetidinyl, such as azetidin-2-yl or azetidin-3-yl; pyrrolidinyl, such as pyrrolidin-1-yl, pyrrolidin-2-yl, pyrrolidin-3-yl; tetrahydrofuranyl, such as tetrahydrofuran-2-yl, tetrahydrofuran-3-yl; tetrahydropyranyl, such as tetrahydropyran-2-yl, tetrahydropyran-3-yl, tetrahydropyran-4-yl; morpholinyl, morpholinyl-N-oxide, such as morpholin-2-yl, morpholin-3-yl, morpholin-4-yl (morpholino)
  • 5- or 6-membered oxy-containing heterocyclic ring refers to a 5- or 6-membered unsaturated ring optionally containing one or two heteroatoms independently selected from N, O or S, in addition to the oxy heteroatom linking the phenyl ring and the group R 5 in formula (I), with the remaining ring atoms being carbon.
  • “5- or 6-membered oxy-containing heterocyclic ring” is preferably furan, dihydrofuran, pyran or dihydropyran.
  • Haldroxyl refers to the —OH radical.
  • Niro refers to the —NO 2 radical.
  • Oxo refers to the ⁇ O radical.
  • Carboxyl refers to the —C(O)—OH radical.
  • optionally substituted alkyl encompasses both “unsubstituted alkyl” and “substituted alkyl” as defined herein. It will be understood by those skilled in the art, with respect to any group containing one or more substituents, that such groups are not intended to introduce any substitution or substitution patterns that are sterically impractical, chemically incorrect, synthetically non-feasible and/or inherently unstable.
  • substituted means that one or more hydrogens on the designated atom or group are replaced with one or more selections from the indicated group of substituents, provided that the designated atom's normal valence is not exceeded.
  • substituents are oxo (i.e., ⁇ O)
  • 2 hydrogens on a single atom are replaced.
  • Combinations of substituents and/or variables are permissible only if such combinations result in a chemically correct and stable compound.
  • a chemically correct and stable compound is meant to imply a compound that is sufficiently robust to survive isolation from a reaction mixture, and subsequent formulation as an agent having at least practical utility.
  • substituents are named into the core structure. For example, it is to be understood that when (cycloalkyl)alkyl is listed as a possible substituent, the point of attachment of this substituent to the core structure is in the alkyl portion.
  • substituted with one or more substitutents means that one or more hydrogens on the designated atom or group are independently replaced with one or more selections from the indicated group of substituents.
  • substituted with one or more substitutents means that the designated atom or group is substituted with two substitutents independently selected from the indicated group of substituents.
  • substituted with one or more substitutents means that the designated atom or group is substituted with three substitutents independently selected from the indicated group of substituents.
  • substituted with one or more substitutents means that the designated atom or group is substituted with four substitutents independently selected from the indicated group of substituents.
  • the compounds of formula (I) may contain one or more chiral centers and therefore exist in two or more stereoisomeric forms.
  • the racemates of these isomers, the individual isomers and mixtures enriched in one enantiomer, as well as diastereomers when there are two chiral centers, and mixtures partially enriched with specific diastereomers are within the scope of the present invention.
  • the present invention includes all the individual stereoisomers (e.g. enantiomers), racemic mixtures or partially resolved mixtures of the compounds of formula (I) and, where appropriate, the individual tautomeric forms thereof.
  • racemates can be used as such or can be resolved into their individual isomers.
  • the resolution can afford stereochemically pure compounds or mixtures enriched in one or more isomers.
  • Methods for separation of isomers are well known (cf Allinger N. L. and Eliel E. L. in “ Topics in Stereochemistry ”, Vol. 6, Wiley Interscience, 1971) and include physical methods such as chromatography using a chiral adsorbent.
  • Individual isomers can be prepared in chiral form from chiral precursors.
  • individual isomers can be separated chemically from a mixture by forming diastereomeric salts with a chiral acid, such as the individual enantiomers of 10-camphorsulfonic acid, camphoric acid, alpha-bromocamphoric acid, tartaric acid, diacetyltartaric acid, malic acid, pyrrolidone-5-carboxylic acid, and the like, fractionally crystallizing the salts, and then freeing one or both of the resolved bases, optionally repeating the process, so as obtain either or both substantially free of the other; i.e., in a form having an optical purity of >95%.
  • a chiral acid such as the individual enantiomers of 10-camphorsulfonic acid, camphoric acid, alpha-bromocamphoric acid, tartaric acid, diacetyltartaric acid, malic acid, pyrrolidone-5-carboxylic acid, and the like, fractionally crystallizing the salts, and then free
  • racemates can be covalently linked to a chiral compound (auxiliary) to produce diastereomers which can be separated by chromatography or by fractional crystallization after which time the chiral auxiliary is chemically removed to afford the pure enantiomers.
  • auxiliary chiral compound
  • “Pharmaceutically acceptable salt” include, but are not limited to, acid addition salts formed by the compound of formula (I) with an inorganic acid, such as hydrochloride, hydrobromide, carbonate, bicarbonate, phosphate, sulfate, sulfite, nitrate and the like; as well as with an organic acid, such as formate, acetate, malate, maleate, fumarate, tartrate, succinate, citrate, lactate, methanesulfonate, p-toluenesulfonate, 2-hydroxyethylsulfonate, benzoate, salicylate, stearate, and salts with alkane-dicarboxylic acid of formula HOOC—(CH 2 ) n —COOH where n is 0-4, and the like.
  • “pharmaceutically acceptable salt” includes base addition salts formed by the compound of formula (I) carring an acidic moiety with pharmaceutically acceptable cations, for example, sodium, potassium
  • the free base can be obtained by basifying a solution of the acid addition salt.
  • an acid addition salt particularly a pharmaceutically acceptable acid addition salt, may be produced by dissolving the free base in a suitable solvent and treating the solution with an acid, in accordance with conventional procedures for preparing acid addition salts from base compounds.
  • solvates means solvent addition forms that contain either stoichiometric or non stoichiometric amounts of solvent. Some compounds have a tendency to trap a fixed molar ratio of solvent molecules in the solid state, thus forming a solvate. If the solvent is water the solvate formed is a hydrate, when the solvent is alcohol, the solvate formed is an alcoholate. Hydrates are formed by the combination of one or more molecules of water with one of the substances in which the water retains its molecular state as H 2 O, such combination being able to form one or more hydrates, for example, hemihydrates, monohydrate and dihydrate.
  • a “prodrug” is a compound which is converted to a therapeutically active compound after administration, and the term should be interpreted as broadly herein as is generally understood in the art. While not intending to limit the scope of the invention, conversion may occur by hydrolysis of an ester group or some other biologically labile group. Generally, but not necessarily, a prodrug is inactive or less active than the therapeutically active compound to which it is converted.
  • an ester may be derived from a carboxylic acid of C1 (i.e. the terminal carboxylic acid of a natural prostaglandin), or an ester may be derived from a carboxylic acid functional group on another part of the molecule, such as on a phenyl ring. While not intending to be limiting, an ester may be an alkyl ester, an aryl ester, or a heteroaryl ester.
  • group As used herein, the terms “group”, “radical” and “moiety” are synonymous and are intended to indicate functional groups or fragments of molecules attachable to other fragments of molecules.
  • treating refers to administering one or more pharmaceutical substances, especially at least one compound of formula (I) and/or at least one pharmaceutically acceptable salt thereof described herein to a subject that has the disease or disorder, or has a symptom of a disease or disorder, or has a predisposition toward a disease or disorder, with the purpose to cure, heal, alleviate, relieve, alter, remedy, ameliorate, improve, or affect a disease or disorder, the symptoms of the disease or disorder, or the predisposition toward the disease or disorder.
  • the disease or disorder is cancer.
  • treating when referring to a chemical reaction mean adding or mixing two or more reagents under appropriate conditions to produce the indicated and/or the desired product. It should be appreciated that the reaction which produces the indicated and/or the desired product may not necessarily result directly from the combination of two reagents which were initially added, i.e., there may be one or more intermediates which are produced in the mixture which ultimately lead to the formation of the indicated and/or the desired product.
  • effective amount refers to an amount of at least one compound of formula (I) and/or at least one pharmaceutically acceptable salt thereof described herein effective to “treat”, as defined above, a disease or disorder in a subject responsive to the inhibition of FGFR.
  • the effective amount may cause any of the changes observable or measurable in a subject as described in the definition of “treating” “treat” or “treatment” above.
  • the effective amount can reduce the number of cancer or tumor cells; reduce the tumor size; inhibit or stop tumor cell infiltration into peripheral organs including, for example, the spread of tumor into soft tissue and bone; inhibit and stop tumor metastasis; inhibit and stop tumor growth; relieve to some extent one or more of the symptoms associated with the cancer, reduce morbidity and mortality; improve quality of life; or a combination of such effects.
  • An effective amount may be an amount sufficient to decrease the symptoms of a disease responsive to inhibition of FGFR.
  • the term “effective amount” may also refer to an amount of at least one compound of formula (I) and/or at least one pharmaceutically acceptable salt described herein effective to inhibit the activity of FGFR in a subject responsive to the inhibition of FGFR.
  • inhibitors indicates a decrease in the baseline activity of a biological activity or process.
  • “Inhibition of FGFR” refers to a decrease in the activity of FGFR as a direct or indirect response to the presence of at least one compound of formula (I) and/or at least one pharmaceutically acceptable salt thereof described herein, relative to the activity of FGFR in the absence of the at least one compound of formula (I) and/or the at least one pharmaceutically acceptable salt thereof.
  • the decrease in activity may be due to the direct interaction of the at least one compound of formula (I) and/or at least one pharmaceutically acceptable salt thereof described herein with the FGFR, or due to the interaction of the at least one compound of formula (I) and/or at least one pharmaceutically acceptable salt thereof described herein, with one or more other factors that in turn affect the FGFR activity.
  • the presence of at least one compound of formula (I) and/or at least one pharmaceutically acceptable salt thereof described herein may decrease the FGFR activity by directly binding to the FGFR, by causing (directly or indirectly) another factor to decrease the FGFR activity, or by (directly or indirectly) decreasing the amount of FGFR present in the cell or organism.
  • subject means mammals and non-mammals.
  • Mammals means any member of the mammalia class including, but not limited to, humans; non-human primates such as chimpanzees and other apes and monkey species; farm animals such as cattle, horses, sheep, goats, and swine; domestic animals such as rabbits, dogs, and cats; laboratory animals including rodents, such as rats, mice, and guinea pigs; and the like.
  • non-mammals include, but are not limited to, birds, and the like.
  • the term “subject” does not denote a particular age or sex.
  • pharmaceutically acceptable means that the substance following this term is useful in preparing a pharmaceutical composition and is generally safe, non-toxic, and neither biologically nor otherwise undesirable, especially for human pharmaceutical use.
  • the present invention provides a compound of formula (I):
  • each optionally substituted group above can be unsubstituted or independently substituted with one or more substituents independently chosen from hydroxyl, mercapto, halo, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, —OC 1 -C 6 alkyl, —NH 2 , —N(C 1 -C 6 alkyl) 2 , —NH(C 1 -C 6 alkyl), cyano, nitro, oxo, —S(O) 2 —C 1 -C 6 alkyl, —S(O)—C 1 -C 6 alkyl, —S(O) 2 —C 1 -C 6 haloalkyl, —C(O)—OH, —C 1 -C 6 alkyl-OH, —C 1 -C 6 alkyl-SH, heterocyclyl.
  • substituents independently chosen from hydroxyl, mercapto,
  • R 1 is aryl or heteroaryl, each of which is optionally substituted by one or more substituents independently selected from halo, oxo, optionally substituted alkyl, —(CH 2 ) m -optionally substituted heterocyclyl, —(CH 2 ) p -optionally substituted cycloalkyl, —(CH 2 ) q -optionally substituted heteroaryl, —S(O) n R 9 , —(CH 2 ) r —C(O)R 10 , optionally substituted alkenyl, optionally substituted alkynyl, —OR 8 , wherein n is 1 or 2; m, p, q and r are independently chosen from 0, 1, 2, 3, 4, 5, 6; R 8 , R 9 and R 10 are independently selected from hydrogen, alkyl, heterocyclyl, each of which except for hydrogen, is optionally substituted with one or more substituents independently selected from alkyl,
  • R 1 is aryl or heteroaryl, each of which is optionally substituted with one or more substituents independently selected from: (1) halo; (2) oxo; (3) alkyl optionally substituted with one or more substitutents independently selected from hydroxyl, mercapto, halo, —OC 1 -C 6 alkyl, —NH 2 , —N(C 1 -C 6 alkyl) 2 , —NH(C 1 -C 6 alkyl), cyano, nitro, —S(O) 2 —C 1 -C 6 alkyl, —S(O)—C 1 -C 6 alkyl, —C(O)—OH; (4) —(CH 2 ) m -heterocyclyl optionally substituted with one or more substitutents independently selected from C 1 -C 6 alkyl, —C 1 -C 6 alkyl-OH, —C 1 -C 6 alkyl-SH
  • R 1 is a radical of the ring or ring system chosen from
  • R 1 is chosen from
  • R 8 is hydrogen or C 1 -C 6 alkyl optionally substituted with heterocyclyl.
  • R 10 is heterocyclyl optionally substituted with one or more substituents independently selected from C 1 -C 6 alkyl and oxo.
  • R 1 is phenyl optionally substituted by one or more substitutents independently selected from: (1) halo; (2) alkyl optionally substituted with —C(O)—OH; (3) —(CH 2 ) m -heterocyclyl optionally substituted with one or more substitutents independently selected from C 1 -C 6 alkyl, —C 1 -C 6 alkyl-OH, —C 1 -C 6 alkyl-SH and oxo, wherein m is 0, 1, 2, 3, 4, 5 or 6; (4) —(CH 2 ) q -heteroaryl optionally substituted with one or more substituents independently selected from C 1 -C 6 alkyl, wherein q is 0; (5) —(CH 2 ) r —C(O)R 10 , wherein R 10 is heterocyclyl optionally substituted with one or more substitutents independently selected from C 1 -C 6 alkyl and oxo
  • R 1 is phenyl substituted by piperazinyl, which piperizinyl is optionally substituted by one or more C 1 -C 6 alkyl. In a specific embodiment, R 1 is phenyl substituted by piperazinyl, which is optionally substituted by one or more methyl or ethyl.
  • R 1 is pyrazolyl, which is optionally substituted with one or more substituents selected from: (1) alkyl optionally substituted with one or more substitutents independently selected from hydroxyl, mercapto, halo, —OC 1 -C 6 alkyl, —NH 2 , —N(C 1 -C 6 alkyl) 2 , —NH(C 1 -C 6 alkyl), —S(O) 2 —C 1 -C 6 alkyl, —S(O)—C 1 -C 6 alkyl; (2) —(CH 2 ) m -heterocyclyl optionally substituted with one or more substitutents independently selected from C 1 -C 6 alkyl, wherein m is 0, 1, 2, 3, 4, 5 or 6; (3) —(CH 2 ) p -unsubstituted cycloalkyl, wherein p is 0, 1, 2, 3, 4, 5 or 6; (4) —(CH 2 ) m -hetero
  • R 2 is chosen from C 1 -C 6 alkyl, C 1 -C 6 alkoxy optionally substituted with hydroxyl, or C 3 -C 8 cycloalkyl (preferably C 3 -C 6 cycloalkyl).
  • R 2 is methyl, ethyl, methoxy, ethoxy substituted with hydroxyl, isopropoxy or cyclopropyl.
  • R 2 is methyl.
  • R 3 , R 4 are independently chosen from hydrogen, halogen, —CN, or unsubstituted C 1 -C 6 alkyl (preferably unsubstituted C 1 -C 3 alkyl), R 5 is C 1 -C 6 alkyl, preferably C 1 -C 3 alkyl, or R 3 and R 5 together with the O atom to which R 5 is attached and the bond there-between form a 5- or 6-membered oxy-containing heterocyclic ring.
  • R 3 is hydrogen, F, Cl, Br, —CN, methyl
  • R 4 is hydrogen or F
  • R 5 is methyl or ethyl.
  • R 4 is hydrogen, and R 3 and R 5 together with the O atom to which R 5 is attached and the bond there-between form furan or dihydrofuran ring.
  • the compound of formula (I) is selected from Compounds 1-223 prepared in the Examples.
  • the present invention provided a pharmaceutical composition, comprising at least one compounds of formula (I) and/or at least one pharmaceutically acceptable salt thereof described herein and optionally at least one pharmaceutically acceptable carrier.
  • the present invention provides a method of in dry or in vitro inhibiting the activity of FGFR, comprising contacting FGFR with an effective amount of at least one compound of formula (I) and/or at least one pharmaceutically acceptable salt thereof described herein.
  • the present invention provides a method of treating a disease responsive to inhibition of FGFR, comprising administering to a subject in need thereof an effective amount to treat said disease of at least one compound of formula (I) and/or at least one pharmaceutically acceptable salt thereof described herein.
  • the present invention provides use of at least one compound of formula (I) and/or at least one pharmaceutically acceptable salt thereof described herein for treating a disease responsive to inhibition of FGFR.
  • the present invention provides use of at least one compound of formula (I) and/or at least one pharmaceutically acceptable salt thereof described herein in the manufacture of a medicament for treating a disease responsive to inhibition of FGFR.
  • said disease responsive to inhibition of FGFR is cancer, for example, lung cancer, stomach cancer, liver cancer, breast cancer, ovarian cancer, endometrial carcinoma, or bladder carcinoma.
  • compounds of formula (I) can be obtained from the reduction of compounds of formula (V).
  • the reduction could be conducted with hydrogen in the precence of a catalyst such as palladium or platinum etc, or conducted with other reductants such as 4-methylbenzenesulfonohydrazide etc.
  • Compounds of formula (V) can be obtained from compounds of formula (IV) with the aminolysis reaction without or with other reagent such as trimethylaluminum.
  • compounds of formula (I) can be obtained from compounds of formula (III), which can be obtained from the reduction of compounds of formula (IV), with the method of hydrolysis reaction and then the coupling reaction or with other suitable methods that could be recognized by one skilled in the art.
  • R 1 , R 2 and R 3 are as defined hereinbefore.
  • compounds of formula (VIII) can be obtained from the compounds of formula (VI) under the conditions described in Scheme I.
  • R 1 , R 2 , R 3 and Y are as defined hereinbefore.
  • the compounds thus obtained can be further modified at their peripheral positions to provide the desired compounds.
  • Synthetic chemistry transformations are described, for example, in R. Larock, Comprehensive Organic Transformations , VCH Publishers (1989); T. W. Greene and P. G. M. Wuts, Protective Groups in Organic Synthesis, 3 rd Ed., John Wiley and Sons (1999); L. Fieser and M. Fieser, Fieser and Fieser's Reagents for Organic Synthesis , John Wiley and Sons (1994); and L. Paquette, ed., Encyclopedia of Reagents for Organic Synthesis, John Wiley and Sons (1995) and subsequent editions thereof.
  • the compound of formula (I) and/or a pharmaceutically acceptable salt thereof described herein can be purified by column chromatography, high performance liquid chromatography, crystallization or other suitable methods.
  • a composition comprising at least one compounds of formula (I) and/or at least one pharmaceutically acceptable salt thereof described herein can be administered in various known manners, such as orally, parenterally, by inhalation spray, or via an implanted reservoir.
  • parenteral as used herein includes subcutaneous, intracutaneous, intravenous, intramuscular, intraarticular, intraarterial, intrasynovial, intrasternal, intrathecal, intralesional and intracranial injection or infusion techniques.
  • An oral composition can be any orally acceptable dosage form including, but not limited to, tablets, capsules, emulsions, and aqueous suspensions, dispersions and solutions.
  • Commonly used carriers for tablets include lactose and corn starch.
  • Lubricating agents, such as magnesium stearate, are also typically added to tablets.
  • useful diluents include lactose and dried corn starch.
  • a sterile injectable composition e.g., aqueous or oleaginous suspension
  • a sterile injectable composition can be formulated according to techniques known in the art using suitable dispersing or wetting agents (such as, for example, Tween 80) and suspending agents.
  • the sterile injectable Intermediate can also be a sterile injectable solution or suspension in a non-toxic parenterally acceptable diluent or solvent, for example, as a solution in 1,3-butanediol.
  • suitable dispersing or wetting agents such as, for example, Tween 80
  • the sterile injectable Intermediate can also be a sterile injectable solution or suspension in a non-toxic parenterally acceptable diluent or solvent, for example, as a solution in 1,3-butanediol.
  • the pharmaceutically acceptable vehicles and solvents that can be employed are mannitol, water, Ringer's solution and isotonic sodium chloride solution.
  • sterile, fixed oils are conventionally employed as a solvent or suspending medium (e.g., synthetic mono- or di-glycerides).
  • Fatty acids such as oleic acid and its glyceride derivatives are useful in the Intermediate of injectables, as are natural pharmaceutically-acceptable oils, such as olive oil or castor oil, especially in their polyoxyethylated versions.
  • These oil solutions or suspensions can also contain a long-chain alcohol diluent or dispersant, or carboxymethyl cellulose or similar dispersing agents.
  • An inhalation composition can be prepared according to techniques well known in the art of pharmaceutical formulation and can be prepared as solutions in saline, employing benzyl alcohol or other suitable preservatives, absorption promoters to enhance bioavailability, fluorocarbons, and/or other solubilizing or dispersing agents known in the art.
  • a topical composition can be formulated in form of oil, cream, lotion, ointment, and the like.
  • suitable carriers for the composition include vegetable or mineral oils, white petrolatum (white soft paraffin), branched chain fats or oils, animal fats and high molecular weight alcohols (greater than C12).
  • the pharmaceutically acceptable carrier is one in which the active ingredient is soluble.
  • Emulsifiers, stabilizers, humectants and antioxidants may also be included as well as agents imparting color or fragrance, if desired.
  • transdermal penetration enhancers may be employed in those topical formulations. Examples of such enhancers can be found in U.S. Pat. Nos. 3,989,816 and 4,444,762.
  • Creams may be formulated from a mixture of mineral oil, self-emulsifying beeswax and water in which mixture the active ingredient, dissolved in a small amount of an oil, such as almond oil, is admixed.
  • An example of such a cream is one which includes, by weight, about 40 parts water, about 20 parts beeswax, about 40 parts mineral oil and about 1 part almond oil.
  • Ointments may be formulated by mixing a solution of the active ingredient in a vegetable oil, such as almond oil, with warm soft paraffin and allowing the mixture to cool.
  • An example of such an ointment is one which includes about 30% by weight almond oil and about 70% by weight white soft paraffin.
  • a pharmaceutically acceptable carrier refers to a carrier that is compatible with active ingredients of the composition (and in some embodiments, capable of stabilizing the active ingredients) and not deleterious to the subject to be treated.
  • solubilizing agents such as cyclodextrins (which form specific, more soluble complexes with the the compound of formula (I) and/or a pharmaceutically acceptable salt thereof described herein), can be utilized as pharmaceutical excipients for delivery of the active ingredients.
  • examples of other carriers include colloidal silicon dioxide, magnesium stearate, cellulose, sodium lauryl sulfate, and pigments such as D&C Yellow #10.
  • Suitable in vitro assays can be used to preliminarily evaluate the efficacy of the compound of formula (I) and/or a pharmaceutically acceptable salt thereof described herein, in inhibiting the activity of Syk kinase.
  • the compound of formula (I) and/or a pharmaceutically acceptable salt thereof described herein can further be examined for efficacy in treating inflammatory disease by in ship assays.
  • the compound of formula (I) and/or a pharmaceutically acceptable salt thereof described herein can be administered to an animal (e.g., a mouse model) having inflammatory disease and its therapeutic effects can be accessed. Based on the results, an appropriate dosage range and administration route for animals, such as humans, can also be determined.
  • the compound of formula (I) and/or a pharmaceutically acceptable salt thereof described herein can be used to achieve a beneficial therapeutic or prophylactic effect, for example, in subjects with cancer.
  • cancer refers to a cellular disorder characterized by uncontrolled or disregulated cell proliferation, decreased cellular differentiation, inappropriate ability to invade surrounding tissue, and/or ability to establish new growth at ectopic sites.
  • cancer includes, but is not limited to, solid tumors and bloodborne tumors.
  • the term “cancer” encompasses diseases of skin, tissues, organs, bone, cartilage, blood, and vessels.
  • the term “cancer” further encompasses primary and metastatic cancers.
  • Non-limiting examples of solid tumors include pancreatic cancer; bladder cancer; colorectal cancer; breast cancer, including metastatic breast cancer; prostate cancer, including androgen-dependent and androgen-independent prostate cancer; renal cancer, including, e.g., metastatic renal cell carcinoma; hepatocellular cancer; lung cancer, including, e.g., non-small cell lung cancer (NSCLC), bronchioloalveolar carcinoma (BAC), and adenocarcinoma of the lung; ovarian cancer, including, e.g., progressive epithelial or primary peritoneal cancer; cervical cancer; gastric cancer; esophageal cancer; head and neck cancer, including, e.g., squamous cell carcinoma of the head and neck; skin cancer, including e.g., malignant melanoma; neuroendocrine cancer, including metastatic neuroendocrine tumors; brain tumors, including, e.g., glioma, anaplastic oligodendroglioma, adult
  • Non-limiting examples of hematologic malignancies include acute myeloid leukemia (AML); chronic myelogenous leukemia (CML), including accelerated CML and CML blast phase (CML-BP); acute lymphoblastic leukemia (ALL); chronic lymphocytic leukemia (CLL); Hodgkin's disease (HD); non-Hodgkin's lymphoma (NHL), including follicular lymphoma and mantle cell lymphoma; B-cell lymphoma; T-cell lymphoma; multiple myeloma (MM); Waldenstrom's macroglobulinemia; myelodysplastic syndromes (MDS), including refractory anemia (RA), refractory anemia with ringed siderblasts (RARS), (refractory anemia with excess blasts (RAEB), and RAEB in transformation (RAEB-T); and myeloproliferative syndromes.
  • AML acute myeloid leukemia
  • CML chronic my
  • the examples of the cancer to be treated include, but are not limited to lung cancer (such as squamous non-small cell lung cancer (NSCLC), small cell lung cancer (SCLC)), stomach cancer, liver cancer, breast cancer, ovarian cancer, endometrial carcinoma, and bladder carcinomas.
  • lung cancer such as squamous non-small cell lung cancer (NSCLC), small cell lung cancer (SCLC)
  • SCLC small cell lung cancer
  • the compound of formula (I) and/or a pharmaceutically acceptable salt thereof described herein is administered in conjunction with another therapeutic agent.
  • the other therapeutic agent is one that is normally administered to patients with the disease or condition being treated.
  • the compound of formula (I) and/or a pharmaceutically acceptable salt thereof described herein may be administered with the other therapeutic agent in a single dosage form or as a separate dosage form.
  • the other therapeutic agent may be administered prior to, at the same time as, or following administration of the compound of formula (I) and/or a pharmaceutically acceptable salt thereof described herein.
  • the compound of formula (I) and/or a pharmaceutically acceptable salt thereof described herein is administered in conjunction with an anti-neoplastic agent.
  • an anti-neoplastic agent refers to any agent that is administered to a subject with cancer for purposes of treating the cancer.
  • Nonlimiting examples anti-neoplastic agents include: radiotherapy; immunotherapy; DNA damaging chemotherapeutic agents; and chemotherapeutic agents that disrupt cell replication.
  • Non-limiting examples of DNA damaging chemotherapeutic agents include topoisomerase I inhibitors (e.g., irinotecan, topotecan, camptothecin and analogs or metabolites thereof, and doxorubicin); topoisomerase II inhibitors (e.g., etoposide, teniposide, and daunorubicin); alkylating agents (e.g., melphalan, chlorambucil, busulfan, thiotepa, ifosfamide, carmustine, lomustine, semustine, streptozocin, decarbazine, methotrexate, mitomycin C, and cyclophosphamide); DNA intercalators (e.g., cisplatin, oxaliplatin, and carboplatin); DNA intercalators and free radical generators such as bleomycin; and nucleoside mimetics (e.g., 5-fluorouracil, capecitibine
  • Chemotherapeutic agents that disrupt cell replication include: paclitaxel, docetaxel, and related analogs; vincristine, vinblastin, and related analogs; thalidomide and related analogs (e.g., CC-5013 and CC-4047); protein tyrosine kinase inhibitors (e.g., imatinib mesylate and gefitinib); proteasome inhibitors (e.g., bortezomib); NF-kappa B inhibitors, including inhibitors of I kappa B kinase; antibodies which bind to proteins overexpressed in cancers and thereby downregulate cell replication (e.g., trastuzumab, rituximab, cetuximab, and bevacizumab); and other inhibitors of proteins or enzymes known to be upregulated, over-expressed or activated in cancers, the inhibition of which downregulates cell replication.
  • ADP diluents ATP diluents Column ( ⁇ L) ( ⁇ L) 1 50 0 2 25 25 3 10 40 4 5 45 5 5 95 6 5 195 7 5 495 8 4 496 9 3 497 10 2 498 11 1 499 12 1 999
  • ADP diluents ATP diluents Column ( ⁇ L) ( ⁇ L) 1 50 0 2 25 25 3 10 40 4 5 45 5 5 95 6 5 195 7 5 495 8 4 496 9 3 497 10 2 498 11 1 499 12 1 999
  • Inhibition rate(IR) 1 ⁇ %Pho test Cpd /%Pho C2
  • the concentration of compound providing 50% of proliferation inhibition was calculated using Excel Fit.

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