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  • C07D413/04—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 directly linked by a ring-member-to-ring-member bond
• • A—HUMAN NECESSITIES
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  • A61K31/00—Medicinal preparations containing organic active ingredients
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  • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
  • A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
  • A61K31/42—Oxazoles
  • A61K31/423—Oxazoles condensed with carbocyclic rings
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  • A61P3/00—Drugs for disorders of the metabolism
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• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P3/00—Drugs for disorders of the metabolism
  • A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
  • A61P3/10—Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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  • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
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  • A61P9/00—Drugs for disorders of the cardiovascular system
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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  • 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
  • C07D401/04—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 directly linked by a ring-member-to-ring-member bond
• • 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
  • C07D405/04—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 directly linked by a ring-member-to-ring-member bond
• • C—CHEMISTRY; METALLURGY
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  • C07D—HETEROCYCLIC COMPOUNDS
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  • 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
  • C07D417/04—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 directly linked by a ring-member-to-ring-member bond

Definitions

• the present invention relates to a bicyclic compound having an acetyl-CoA carboxylase (in the present specification, sometimes to be abbreviated as ACC) inhibitory action, which is useful for the prophylaxis or treatment of obesity,
• ACC acetyl-CoA carboxylase
• diabetes hypertension, hyperlipidemia, cardiac failure, diabetic complications, metabolic syndrome, sarcopenia, cancer and the like.
• ACC is an enzyme, that converts acetyl-CoA to malonyl-CoA, and catalyzes a rate determining reaction in fatty acid
• ACC plays a key role in controlling the balance between use of carbohydrate and fatty acid in the liver and skeletal muscle, and further, controlling insulin sensitivity in the liver, skeletal muscle and adipose tissue.
• a reduced level of malonyl-CoA by ACC inhibition can promote a promotion in fatty acid oxidation, decreased
• TG triglyceride
• VLDL triglyceride-rich lipoprotein
• long-term administration of a compound having an ACC inhibitory action can strikingly decrease the TG content of the liver and adipose tissues and selectively
• a compound having an ACC inhibitory action is extremely useful for the prophylaxis or treatment of metabolic syndrome, obesity, hypertension, diabetes,
• cardiovascular diseases associated with atherosclerosis and the like.
• patent document 1 (WO 2010/050445) has reported the following compound.
• A is an acyl group or an optionally substituted 5- or 6- membered aromatic ring group
• ring M is an optionally condensed 5- to 7-membered ring which is . optionally further substituted;
• ring P is an optionally further substituted 5-membered heterocycle
• ring Q is an optionally further substituted 6- membered ring
• ring P and ring Q are fused to form an optionally further substituted bicyclic aromatic heterocycle
• ring P is an optionally further substituted 5-membered non-aromatic ring
• ring Q is an optionally further substituted 6-membered aromatic ring
• ring P and ring Q are fused to form an optionally further substituted bicyclic non-aromatic ring
• R 1 is an optionally substituted Ci_ 6 alkyl group or an optionally substituted C 3 _ 6 cycloalkyl group
• R A1 is a hydrogen atom or a Ci_ 6 alkyl group
• R A2 , R A3 , R A4 , R A5 and R A7 are independently a hydrogen atom or a Ci_6 alkyl group; and R A6 is a hydrogen atom, a Ci-6 alkyl group or a hydroxy group,
• non-patent document 1 (Analytical Sciences
• patent document 2 (WO 2011/136385) has reported the following compound.
• R 1 is a group represented by the formula: -COR 2 wherein R 2 is a hydrogen atom or a substituent, an optionally substituted 5- or 6-membered aromatic heterocyclic group or an optionally substituted phenyl group;
• R 3 is a Ci-6 alkyl group optionally substituted by halogen atom(s), or an optionally substituted C 3 - 6 cycloalkyl group;
• R 4 is a hydrogen atom or a substituent;
• X is 0, CO , CR 5a R 5b wherein R 5a and R 5b are each independently a hydrogen atom, a halogen atom or an optionally substituted Ci_ 6 alkyl group, NR 5c wherein R 5c is a hydrogen atom or an
• Ci-6 alkyl group optionally substituted Ci-6 alkyl group, S , SO or S(0) 2 ;
• ring A is an optionally further substituted 4- to 7-membered non-aromatic ring (the ring is optionally crosslinked) ;
• ring P is a 5-membered aromatic heterocycle
• ring Q is an optionally further substituted 6-membered ring
• ring P and ring Q are condensed to form an optionally further substituted bicyclic aromatic heterocycle
• R 6 is an optionally substituted Ci- 6 alkyl group or an
• R 1 is a group represented by the formula: -COR 2 wherein R 2 is a hydrogen atom or a substituent, or an optionally substituted 5- or 6-membered aromatic ring group;
• R 3 is a C-6 alkyl group optionally substituted by halogen atom(s), or an optionally substituted C 3 _ 6 cycloalkyl group;
• R a and R b are independently a hydrogen atom or a substituent;
• X is 0, CO, CR 5a R 5b wherein R 5a and R 5b are independently a hydrogen atom or a substituent, NR 5c wherein R 5c is a hydrogen atom or an optionally substituted Ci_ 6 alkyl group, S, SO, or S(0) 2 ;
• ring A is an optionally further substituted 5- or 6-membered aromatic ring
• ring P is an optionally further substituted 5-membered aromatic ring
• ring Q is an optionally further substituted 6- membered ring
• ring P and ring Q are fused to form an optionally further substituted bicyclic aromatic ring, or
• ring P is an optionally further substituted 5-membered non-aromatic ring
• ring Q is an optionally further substituted 6-membered aromatic ring
• ring P and ring Q are fused to form an optionally further substituted bicyclic non-aromatic ring
• R 6 is an optionally substituted Ci_ 6 alkyl group or an
• compound (I) has a superior ACC inhibitory action, which is useful for the prophylaxis or treatment of obesity, diabetes, hypertension, hyperlipidemia, cardiac failure, diabetic
• the present invention relates to
• Ci_6 alkyl group optionally substituted by 1 to 3 halogen atoms
• Ci-6 alkyl group optionally substituted by 1 to 3 halogen atoms
• Ci-6 alkyl group optionally substituted by 1 to 3 halogen atoms
• Ci-6 alkyl group optionally substituted by 1 to 3 halogen atoms
• Ci-6 alkyl group optionally substituted by 1 to 3 halogen atoms
• R 3 is a Ci-6 alkyl group optionally substituted by 1 to 3 halogen atoms
• R a and R b are each a hydrogen atom
• X is 0, CO or CH 2 ,
• R 6 is a Ci-6 alkyl group optionally substituted by 1 to 3 substituents selected from
• ring A is benzene, optionally oxidized pyridine, pyrimidine, pyrazole or isoxazole, each of which is optionally substituted by 1 to 3 substituents selected from
• Ci-6 alkyl group optionally substituted by 1 to 3 halogen atoms
• [11A] a prodrug of the compound or salt of the above-mentioned [1], [2], [3], [4], [5], [6], [7], [8], [9], [10] or [11];
• [15] a method of inhibiting acetyl-CoA carboxylase in a mammal, which comprises administering an effective amount of the compound or salt of the above-mentioned [1], [2], [3], [4],
• Compound (I) has an ACC inhibitory action, which is useful for the prophylaxis or treatment of obesity, diabetes, hypertension, hyperlipidemia, cardiac failure, diabetic
• halogen atom in the present specification means, unless otherwise specified, a fluorine atom, a chlorine atom, a bromine atom or an iodine atom.
• Ci-6. alkyl group in the present specification means, unless otherwise specified, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, neopentyl, 1-ethylpropyl, hexyl, isohexyl, 1 , 1-dimethylbutyl, 2, 2-dimethylbutyl, 3, 3-dimethylbutyl, 2-ethylbutyl or the like.
• Ci_6 alkoxy group in the present specification means, unless otherwise specified, methoxy, ethoxy, propoxy,
• R 1 is a group represented by the formula: -COR 2 wherein R 2 is a hydrogen atom or a substituent, or an optionally
• hydrocarbon group examples include a Ci-io alkyl group, a C 2 -io alkenyl group, a C 2 -io alkynyl group, a C3-10 cycloalkyl group, a C 3 _io cycloalkenyl group, a C4-10
• Ci-10 alkyl group examples include methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, neopentyl, 1-ethylpropyl, hexyl, isohexyl, 1, 1-dimethylbutyl, 2, 2-dimethylbutyl, 3, 3-dimethylbutyl, 2- ethylbutyl, heptyl, octyl, nonyl, decyl and the like. Of these, a Ci-6 alkyl group is preferable.
• Examples of the C 2 -io alkenyl group include ethenyl, 1- propenyl, 2-propenyl, 2-methyl-l-propenyl, 1-butenyl, 2- butenyl, 3-butenyl, 3-methyl-2-butenyl, 1-pentenyl, 2-pentenyl, 3-pentenyl, 4-pentenyl, 4-methyl-3-pentenyl, 1-hexenyl, 3- hexenyl, 5-hexenyl, 1-heptenyl, 1-octenyl and the like. Of these, a C 2 -6 alkenyl group is preferable.
• Examples of the C 2 -i 0 alkynyl group include ethynyl, 1- propynyl, 2-propynyl, 1-butynyl, 2-butynyl, 3-butynyl, 1- pentynyl, 2-pentynyl, 3-pentynyl,- 4-pentynyl, 1-hexynyl, 2- hexynyl, 3-hexynyl, 4-hexynyl, 5-hexynyl, 1-heptynyl, 1- octynyl and the like.
• a C 2 -6 alkynyl group is
• Examples of .the C3-10 cycloalkyl group include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl and the like. Of these, a C3-6 cycloalkyl group is preferable.
• Examples of the C3-10 cycloalkenyl group include 2- cyclopenten-l-yl, 3-cyclopenten-l-yl, 2-cyclohexen-l-yl, 3- cyclohexen-l-yl and the like. Of these, a C3_6 cycloalkenyl group is preferable.
• Examples of the G4-10 cycloalkadienyl group include 2,4- cyclopentadien-l-yl, 2, -cyclohexadien-l-yl, 2,5- cyclohexadien-l-yl and the like. Of these, a C- 6
• cycloalkadienyl group is preferable.
• cycloalkenyl group and C4-10 cycloalkadienyl group are each optionally fused with a benzene ring to form a fused ring group.
• fused ring group examples include indanyl, dihydronaphthyl, tetrahydronaphthyl, fluorenyl and the like.
• C3-10 cycloalkyl group, C3-10 ' cycloalkenyl group and C4-10 cycloalkadienyl group may be - each a C 7 _i 0 bridged hydrocarbon group.
• Examples of the C 7 _io . bridged hydrocarbon group include bicyclo [2.2.1] heptyl
• cycloalkane a C3-10 cycloalkene or a C4-10 cycloalkadiene.
• Examples of the C3-10 cycloalkane, C3-10 cycloalkene and C -10 cycloalkadiene include rings corresponding to the above- mentioned C3-10 cycloalkyl group, C3-10 cycloalkenyl group and C 4 _ 10 cycloalkadienyl group.
• Examples of the spiro ring group include spiro [4.5] decan-8-yl and the like.
• Examples of the C 6 -i 4 aryl group include phenyl, naphthyl, anthryl, phenanthryl, acenaphthylenyl, biphenylyl and the like. Of these, a C 6 -i2 aryl group is preferable.
• Examples of the C 7 -i 3 aralkyl group include benzyl,
• Examples of the Cg-i3 arylalkenyl group include styryl and the like.
• Ci-io alkyl group, C 2 -io alkenyl group and C 2 -io alkynyl group which are exemplified as the above-mentioned
• hydrocarbon . group optionally, have 1 to 7 (preferably 1 to 3) substituents at substitutable positions.
• a C3-10 cycloalkyl group e.g., cyclopropyl, cyclohexyl
• a C3-10 cycloalkyl group e.g., cyclopropyl, cyclohexyl
• Ci-6 alkyl group optionally substituted by 1 to 3 halogen atoms
• Ci-6 alkoxy group optionally substituted by 1 to 3 halogen atoms
• an aromatic heterocyclic group e.g., thienyl, furyl, pyridyl, pyrazolyl, imidazolyl, tetrazolyl, oxazolyl,
• Ci-6 alkyl group optionally substituted by 1 to 3 halogen atoms
• Ci-6 alkoxy group optionally substituted by 1 to 3 halogen atoms
• a halogen atom (d) a halogen atom; (4) a non-aromatic heterocyclic group (e.g., tetrahydrofuryl, morpholinyl, thiomorpholinyl, piperidyl, pyrrolidinyl,
• a non-aromatic heterocyclic group e.g., tetrahydrofuryl, morpholinyl, thiomorpholinyl, piperidyl, pyrrolidinyl,
• piperazinyl optionally substituted by 1 to 3 substituents selected from
• Ci-6 alkyl group optionally substituted by 1 to 3 halogen atoms
• Ci-6 alkoxy group optionally substituted by 1 to 3 halogen atoms
• Ci-6 alkyl group optionally substituted by 1 to 3 halogen atoms
• Ci-6 alkyl-carbonyl group optionally substituted by 1 to 3 halogen atoms
• Ci-6 alkoxy-carbonyl group optionally substituted by 1 to 3 halogen atoms
• Ci_6 alkylsulfonyl group e.g., methylsulfonyl
• halogen atoms e.g., methylsulfonyl
• an aromatic heterocyclic group e.g., thienyl, furyl, pyridyl, pyrazolyl, imidazolyl, tetrazolyl, oxazolyl, thiazolyl, oxadiazolyl, thiadiazolyl
• an aromatic heterocyclic group e.g., thienyl, furyl, pyridyl, pyrazolyl, imidazolyl, tetrazolyl, oxazolyl, thiazolyl, oxadiazolyl, thiadiazolyl
• Ci-6 alkyl-carbonyl group optionally substituted by 1 to 3 halogen atoms
• Ci-6 alkoxy-carbonyl group optionally substituted by 1 to 3 substituents selected from
• a C6-1 aryl group e.g., phenyl
• a heterocyclic group e.g., tetrahydrofuryl
• a Ci-6 alkylsulfonyl group e.g., methylsulfonyl
• Ci-6 alkoxy group optionally substituted by 1 to 3 substituents selected from
• Ci-6 alkoxy-carbonyl group optionally substituted by 1 to 3 C6-14 aryl groups (e.g., phenyl),
• a C 2 -6 alkenyloxy group e.g., ethenyloxy
• a C 2 -6 alkenyloxy group e.g., ethenyloxy
• 1 to 3 halogen atoms optionally substituted by 1 to 3 halogen atoms
• a C 7 -i3 aralkyloxy group e.g., benzyloxy
• a C 6 -i4 aryloxy group e.g., phenyloxy,' naphthyloxy
• Ci-6 alkyl-carbonyloxy group e.g., acetyloxy, tert- butylcarbonyloxy
• Ci-6 alkyl group optionally substituted by 1 to 3 halogen atoms
• a non-aromatic heterocyclylcarbonyl group e.g.,
• Ci_6 alkyl groups optionally substituted by 1 to 3 halogen atoms;
• Ci-6 alkylthio group e.g., methylthio, ethylthio
• substituents selected from
• a C 6 -i4 arylthio group e.g., phenylthio, naphthylthio
• Ci-3 alkyleneoxy group e.g., methyleneoxy, ethyleneoxy
• an aromatic heterocyclylcarbonyl group e.g., an aromatic heterocyclylcarbonyl group
• pyrazolylcarbonyl pyrazinylcarbonyl, isoxazolylcarbonyl, pyridylcarbonyl, thiazolylcarbonyl) optionally substituted by 1 to 3 substituents selected from a Ci-6 alkyl group optionally substituted by 1 to 3 halogen atoms;
• a C 3 _io cycloalkoxy group e.g., cyclopropoxy
• halogen atom e.g., a fluorine atom
• Ci-6 alkoxy group e.g., methoxy
• Ci_6 alkoxy-carbonyl group a Ci_6 alkoxy-carbonyl group
• Ci-6 alkyl group optionally substituted by 1 to 3 halogen atoms
• heterocyclic group of the above- mentioned “optionally substituted heterocyclic group” include an “aromatic heterocyclic group” and a “non-aromatic
• aromatic heterocyclic group examples include a 4- to 7-membered (preferably 5- or 6-menbered) monocyclic aromatic heterocyclic group containing, as a ring-constituting atom besides carbon atoms, 1 to 4 hetero atoms selected from an oxygen atom, a sulfur atom and a nitrogen atom, and a fused aromatic heterocyclic group.
• fused aromatic heterocyclic group examples include a group derived from a fused ring wherein a ring corresponding to the 4- to 7-membered
• nitrogen atoms e.g., pyrrole, imidazole, pyrazole, pyrazine, pyridine, pyrimidine
• a 5-membered aromatic heterocycle containing one sulfur atom e.g., thiophene
• a benzene ring fused, and the like.
• aromatic heterocyclic group examples include
• 2-furyl, 3-furyl) 2-furyl, 3-furyl
• thienyl e.g., 2-thienyl, 3-thienyl
• pyridyl e.g., 2-pyridyl, 3-pyridyl, 4-pyridyl
• pyrimidinyl e.g., 2-pyrimidinyl, 4-pyrimidinyl, 5-pyrimidinyl
• pyridazinyl e.g., 3-pyridazinyl, 4-pyridazinyl
• pyrazinyl e.g., 2-pyrazinyl
• pyrrolyl e.g., 1-pyrrolyl, 2-pyrrolyl
• imidazolyl e.g., 1-imidazoly.l, 2-imidazolyl, 4- imidazolyl, 5-imidazolyl
• pyrazolyl e.g., 1-pyrazolyl, 3- pyrazolyl, 4-pyrazolyl
• thiazolyl e.g., 2-thiazolyl, 4- thiazolyl, 5-thiazolyl
• isothiazolyl e.g., 3-isothiazolyl
• oxazolyl e.g., 2-oxazolyl, 4-oxazolyl, 5-oxazo
• triazol-4-yl tetrazolyl (e.g., tetrazol-l-yl, tetrazol-5-yl) , triazinyl (e.g., 1, 2, 4-triazin-l-yl, 1, 2, 4-triazin-3-yl) and the like;
• quinolyl e.g., 2-quinolyl, 3-quinolyl, 4-quinolyl, 6- quinolyl
• isoquinolyl e.g., 3-isoquinolyl
• quinazolyl e.g.,
• 2-quinazolyl, 4-quinazolyl) quinoxalyl (e.g., 2-quinoxalyl, 6-quinoxalyl) , benzofuranyl (e.g., 2-benzofuranyl, 3- benzofuranyl) , benzothienyl (e.g., 2-benzothienyl, 3- benzothienyl) , benzoxazolyl (e.g., 2-benzoxazolyl) ,
• benzisoxazolyl e.g., 7-benzisoxazolyl
• benzothiazolyl e.g., 2-benzothiazolyl
• benzimidazolyl e.g., benzimidazol-l-yl, benzimidazol-2-yl, benzimidazol-5-yl
• benzotriazolyl e.g., lH-1, 2, 3-benzotriazol-5-yl
• indolyl e.g., indol-l-yl, indol- 2-yl, indol-3-yl, indol-5-yl
• indazolyl e.g., lH-indazol-3- yl
• pyrrolopyrazinyl e.g., lH-pyrrolo [2, 3-b] pyrazin-2-yl, lH-pyrrolo [2, 3-b] pyrazin-2-y
• thieno [2, 3-b] pyridin-3-yl) imidazopyrazinyl (e.g., 1H- imidazo [4, 5-b] pyrazin-2-yl) , pyrazolopyridinyl (e.g., 1H- pyrazolo [4, 3-c] pyridin-3-yl ) , pyrazolothienyl (e.g., 2H- pyrazolo [3, 4-b] thiophen-2-yl) , pyrazolotriazinyl (e.g.,
• pyrazolo [5, 1-c] [1, 2, 4] triazin-3-yl) pyridopyridinyl (e.g., pyrido [2, 3-b] pyridin-3-yl)
• thienopyridyl e.g., thieno [2,3- b] pyridin-3-yl
• non-aromatic heterocyclic group examples include a 4- to 7-membered . (preferably 5- or 6-menbered) monocyclic non- aromatic heterocyclic group containing, as a ring-constituting atom besides carbon atoms, 1 to 4 hetero atoms selected from an oxygen atom, a sulfur atom and a nitrogen atom, and a fused aromatic heterocyclic group.
• fused aromatic heterocyclic group examples include a group derived from a fused ring wherein a ring corresponding to the 4- to - 7-membered
• nitrogen atoms e.g., pyrrole, imidazole, pyrazole, pyrazine, pyridine, pyrimidine
• a 5-membered aromatic heterocycle containing one sulfur atom e.g., thiophene
• a benzene ring fused, a group wherein the above-mentioned group is partially saturated, and the like.
• non-aromatic heterocyclic group examples include
• azetidinyl e.g., 1- azetidinyl, 2-azetidinyl, 3-azetidinyl
• pyrrolidinyl e.g., 1-pyrrolidinyl, 2-pyrrolidinyl
• piperidyl e.g., piperidino, 2-piperidyl, 3-piperidyl, 4-piperidyl
• morpholinyl e.g., morpholino
• thiomorpholinyl e.g., thiomorpholino
• piperazinyl e.g., 1-piperazinyl, 2- piperazinyl, 3-piperazinyl
• hexamethyleniminyl e.g., hexamethylenimin-l-yl
• oxazolidinyl e.g., oxazolidin-2-yl
• thiazolidinyl e.g.
• imidazolinyl e.g., imidazolin-2-yl, imidazolin-3-yl
• - dioxolyl e.g., 1, 3-dioxol-4-yl
• dioxolanyl e.g., 1,3- dioxolan-4-yl
• dihydrooxadiazolyl e.g., 4, 5-dihydro-l, 2, - oxadiazol-3-yl
• pyranyl e.g., 4-pyranyl
• tetrahydropyranyl e . g .
• tetrahydrofuryl e.g., tetrahydrofuran-3-yl, tetrahydrofuran- 2-yl
• pyrazolidinyl e.g., pyrazolidin-l-yl, pyrazolidin-3- yl
• pyrazolinyl e.g., pyrazolin-l-yl
• tetrahydropyrimidin-l-yl e.g., 2,3- dihydro-lH-1, 2, 3-triazol-l-yl
• tetrahydrotriazolyl e.g., 2,3- dihydro-lH-1, 2, 3-triazol-l-yl
• dihydroindolyl e . g . , 2 , 3-dihydro-lH-indol-l-yl
• dihydroisoindolyl e.g., 1, 3-dihydro-2H-isoindol-2-yl
• dihydrobenzofuranyl e.g., 2, 3-dihydro-l-benzofuran-5-yl
• dihydrobenzodioxinyl e.g., 2, 3-dihydro-l, 4-benzodioxinyl
• dihydrobenzodioxepinyl e.g., 3, 4-dihydro-2H-l, 5- benzodioxepinyl
• tetrahydrobenzofuranyl e.g., 4,5,6,7- tetrahydro-l-benzofuran-3-yl
• chromenyl e.g., 4H-chromen-2- yl, 2H-chromen-3-yl
• dihydrochromenyl e.g., 3, 4-dihydro-2H- chromen-2H- chromeny
• heterocyclic group of the “optionally substituted heterocyclic group” optionally has 1 to 3 substituents at substitutable positions.
• substituents include those similar to the substituents that the C 3 -i 0 cycloalkyl group and the like exemplified as the "hydrocarbon group” of the above-mentioned "optionally substituted hydrocarbon group” optionally has.
• the heterocyclic group is a "non-aromatic heterocyclic group”
• the substituent further includes an oxo group.
• the number of the substituents is not less than 2, the respective substituents may be the same or different.
• optionally substituted hydroxy group examples include a hydroxy group optionally substituted by a substituent selected from a Ci-i 0 alkyl group, a C 2 -io
• alkenyl group a C3-10 cycloalkyl group, a C3-10 cycloalkenyl group, a C 6 -u aryl group, a C 7 -i 3 aralkyl group, a C 8 -i 3
• arylalkenyl group a Ci_ 6 alkyl-carbonyl group, a heterocyclic group and the like, each of which is optionally substituted.
• Ci_i 0 alkyl group examples include those
• hydrocarbon group of the above-mentioned “optionally substituted hydrocarbon group”.
• heterocyclic group examples include those similar to the “aromatic heterocyclic group" and “non-aromatic heterocyclic group"
• heterocyclic group exemplified as the "heterocyclic group” of the above-mentioned “optionally substituted heterocyclic group” .
• Ci-io alkyl group, C 2 -io alkenyl group, C3-10 cycloalkyl group, C3-10 cycloalkenyl group, C 6 -i4 aryl group, C 7 -i3 aralkyl group, C 8 -i3 arylalkenyl group, Ci_ 6 alkyl-carbonyl group and heterocyclic group optionally have.1 to 3
• Ci-6 alkyl-carbonyl group include those similar to the substituent that the Ci-10 alkyl group and the like exemplified as the "hydrocarbon group" of the above- mentioned “optionally substituted hydrocarbon group"
• Examples of the substituent for the C3-10 cycloalkyl group, C3-10 cycloalkenyl group, C6-14 aryl group, C 7 _i 3 aralkyl group and Cs-13 arylalkenyl group include those similar to the substituent that the C3-10 cycloalkyl group and the like exemplified as the "hydrocarbon group" of the above-mentioned "optionally
• substituted hydrocarbon group optionally has.
• substituent for the heterocyclic group include those similar to the substituent that the "heterocyclic group" of the above- mentioned “optionally substituted heterocyclic group”
• heterocyclic group and the like, each of which is optionally substituted.
• optionally substituted amino group examples include an amino group optionally mono- or di- substituted by substituent ( s ) selected from a Ci-10 alkyl group, a C2-10 alkenyl group, a C3-10 cycloalkyl group, a C3-10
• cycloalkenyl group a Ce-14 aryl group, a C 7 -i 3 aralkyl group, a Ce-13 arylalkenyl group and a heterocyclic group, each of which is optionally substituted; an acyl group and the like.
• Ci-10 alkyl group examples include those
• hydrocarbon group of the above-mentioned “optionally substituted hydrocarbon group”.
• heterocyclic group examples include those similar to the “aromatic heterocyclic group" and “non-aromatic heterocyclic group"
• heterocyclic group exemplified as the "heterocyclic group” of the above-mentioned “optionally substituted heterocyclic group”.
• a 5- or 6-membered monocyclic aromatic heterocyclic group is preferable.
• the Ci-io alkyl group, C 2 -iq alkenyl group, C3-10 cycloalkyl group, C3-10 cycloalkenyl group, C 6 -i4 aryl group, C7-13 aralkyl group, Cg-13 arylalkenyl group and heterocyclic group optionally have 1 to 3 substituents at substitutable positions. When the number of the substituents is not less than 2, the respective substituents may be the same or different.
• Examples of the substituent for the Ci-10 alkyl group and C2-10 alkenyl group include those similar to the substituent that the Ci-10 alkyl group and the like exemplified as the
• substituted hydrocarbon group optionally has.
• C3-10 cycloalkenyl group, C 6 -i4 aryl group, C7-13 aralkyl group and CB-I3 arylalkenyl group include those similar to the substituent that the C3-10 cycloalkyl ' group and the like exemplified as the "hydrocarbon group" of the above-mentioned "optionally
• substituted hydrocarbon group optionally has.
• substituent for the heterocyclic group include those similar to the substituent that the "heterocyclic group" of the above- mentioned “optionally substituted heterocyclic group”
• substituent for the "optionally substituted amino group” include those similar to the "acyl group” below, which is exemplified as the "substituent” for R 2 .
• R A is a hydrogen atom, an optionally substituted hydrocarbon group or an optionally substituted heterocyclic group
• R A ' and R B ' are the same or different and each is a hydrogen atom, an optionally substituted hydrocarbon group or an optionally substituted heterocyclic group
• R A ' and R B ' form, together with the adjacent nitrogen atom, an optionally substituted nitrogen- containing heterocycle, and the like.
• R A , R A ' or R B ' examples include those similar to the "optionally substituted hydrocarbon group” and “optionally substituted heterocyclic group", which are exemplified as the "substituent" for R 2 .
• nitrogen-containing heterocycle of the "optionally substituted nitrogen-containing heterocycle” formed by R A ' and R B ' together with the adjacent nitrogen atom
• nitrogen-containing heterocycle include a 5- to 7-membered nitrogen-containing heterocycle containing, as a ring-constituting atom besides carbon atoms, at least one nitrogen atom and optionally further containing one or two hetero atoms selected from an oxygen atom, a sulfur atom and a nitrogen atom.
• nitrogen- containing heterocycle include pyrrolidine, imidazolidine, pyrazolidine, piperidine, piperazine, morpholine,
• the nitrogen-containing heterocycle optionally has 1 to 5 (preferably 1 or 2) substituents at substitutable positions.
• substituents include those similar to the substituent that the "heterocyclic group" of the "optionally substituted heterocyclic group", which is exemplified as the "substituent" for R 2 , optionally has.
• the number of the substituents is not less than 2, the respective substituents may be the same or different.
• acyl group examples include
• Ci-6 alkyl-carbonyl group e.g., acetyl
• a Ci-6 alkyl-carbonyl group optionally substituted by 1 to 3 halogen atoms
• Ci_6 alkoxy-carbonyl group e.g., methoxycarbonyl
• a C3-10 cycloalkyl-carbonyl group e.g., cyclopropylcarbonyl, cyclopentylcarbonyl, cyclohexylcarbonyl
• a C3-10 cycloalkyl-carbonyl group e.g., cyclopropylcarbonyl, cyclopentylcarbonyl, cyclohexylcarbonyl
• a C 6 -i4 aryl-carbonyl group e.g., benzoyl, 1-naphthoyl, 2- naphthoyl
• a C 6 -i4 aryl-carbonyl group e.g., benzoyl, 1-naphthoyl, 2- naphthoyl
• optionally substituted by 1 to 3 halogen atoms e.g., benzoyl, 1-naphthoyl, 2- naphthoyl
• Ci_6 alkylsulfonyl group e.g., methylsulfonyl
• an aromatic heterocyclylcarbonyl group e.g., an aromatic heterocyclylcarbonyl group
• furylcarbonyl, thienylcarbonyl optionally substituted by 1 to 3 substituents selected from a Ci-6 alkyl group optionally substituted by 1 to 3 halogen atoms;
• a non-aromatic heterocyclylcarbonyl group e.g.,
• tetrahydrofurylcarbonyl, pyrrolidinocarbonyl optionally substituted by 1 to 3 substituents selected from a Ci- 6 alkyl group optionally substituted by 1 to 3 halogen atoms;
• R 2 is preferably an optionally substituted Ci- 6 alkyl group, an optionally substituted Ci_ 6 alkoxy group, an
• C 3 _io cycloalkyl group an optionally substituted Ce-u aryl group, an optionally substituted amino group, an optionally substituted aromatic heterocyclic group,. an optionally substituted non-aromatic heterocyclic group or the like .
• R 2 is preferably
• Ci-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• a Ci-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• Ci-6 alkoxy-carbonyl group e.g., methoxycarbonyl, ethoxycarbonyl
• Ci-6 alkoxy group e.g., methoxy
• a halogen atom e.g., a fluorine atom
• Ci_6 alkoxy group e.g., methoxy, tert-butoxy
• a C3-10 cycloalkyl group e.g., cyclopropyl, cyclopentyl
• Ci-6 alkyl group e.g., methyl, ethyl, propyl
• isopropyl optionally substituted by 1 to 3 C 6 -i 4 aryl groups (e.g., phenyl),
• a C3-10 cycloalkyl group e.g., cyclopentyl
• Ci-6 alkylsulfonyl group e.g., methylsulfonyl
• an aromatic heterocyclic group e.g., pyridyl
• Ci-6 alkyl groups e.g., methyl
• an aromatic heterocyclic group e.g., furyl, pyrazolyl, pyridyl, isoxazolyl, thiazolyl.
• an aromatic heterocyclic group e.g., furyl, pyrazolyl, pyridyl, isoxazolyl, thiazolyl.
• substituents selected from a Ci_6 alkyl group optionally substituted by 1 to 3 halogen atoms (e.g., a fluorine atom);
• a non-aromatic heterocyclic group e.g.,
• R 2 is more preferably an optionally substituted Ci_ 6 alkyl group, an optionally substituted Ci_6 alkoxy group, an
• R 2 is more preferably
• Ci-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• a Ci-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• Ci_6 alkoxy-carbonyl group e.g., methoxycarbonyl, ethoxycarbonyl
• Ci-6 alkoxy group e.g., methoxy
• a halogen atom e.g., a fluorine atom
• Ci-6 alkoxy group e.g., methoxy, tert-butoxy
• Ci-6 alkyl group e.g., methyl, ethyl, propyl
• isopropyl optionally substituted by 1 to 3 C6-14 aryl groups (e.g., phenyl),
• a C3-10 cycloalkyl group e.g., cyclopentyl
• Ci-6 alkylsulfonyl group e.g., methylsulfonyl
• an aromatic heterocyclic group e.g., pyridyl
• Ci_ 6 alkyl groups e.g., methyl
• R 2 is still more preferably
• Ci-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• Ci-6 alkoxy group e.g., methoxy, tert-butoxy
• Ci- 6 alkyl group(s) e.g., methyl, ethyl, propyl, isopropyl
• R 2 is particularly preferably
• Ci-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• Ci-6 alkoxy group e.g., methoxy, tert-butoxy
• Ci_ 6 alkyl group(s) e.g., methyl, ethyl, propyl, isopropyl
• the "group represented by the formula: -COR 2 " for R 1 is preferably a group represented by the formula: -COR 2 wherein R 2 is an optionally substituted Ci_ 6 alkyl group, an optionally substituted Ci_ 6 alkoxy group, an optionally substituted C 3 -i 0 cycloalkyl group, an optionally substituted C 6 -i 4 aryl group, an optionally substituted amino group, an optionally substituted aromatic heterocyclic group, an optionally substituted non- aromatic heterocyclic group or the like.
• the "group represented by the formula: - COR 2 " for R 1 is preferably a group represented by the formula: -COR 2 wherein
• Ci-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• a Ci-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• Ci-6 alkoxy-carbonyl group e.g., methoxycarbonyl, ethoxycarbonyl
• Ci-6 alkoxy group e.g., methoxy
• a halogen atom e.g., a fluorine atom
• Ci-6 alkoxy group e.g., methoxy, tert-butoxy
• a C3-10 cycloalkyl group e.g., cyclopropyl
• Ci-6 alkyl group e.g., methyl, ethyl, propyl, isopropyl
• aryl groups e.g., phenyl
• a C3-10 cycloalkyl group e.g., cyclopentyl
• Ci-6 alkylsulfonyl group e.g., methylsulfonyl
• an aromatic heterocyclic group e.g., pyridyl
• Ci-6 alkyl groups e.g., methyl
• an aromatic heterocyclic group e.g., furyl, . pyrazolyl, pyridyl, isoxazolyl, thiazolyl
• an aromatic heterocyclic group e.g., furyl, . pyrazolyl, pyridyl, isoxazolyl, thiazolyl
• 1 to 3 substituents selected from a Ci_ 6 alkyl group optionally substituted by 1 to 3 halogen atoms (e.g., a fluorine atom) ;
• a non-aromatic heterocyclic group e.g., tetrahydropyranyl
• the "group represented by the formula: -COR 2 " for R 1 is more preferably a group represented by the formula: -COR 2 wherein R 2 is an optionally substituted Ci_ 6 alkyl group, an optionally substituted Ci_ 6 alkoxy group, an optionally
• COR 2 " for R 1 is more preferably a group represented by the formula: -COR 2
• Ci-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• a Ci-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• Ci-6 alkoxy-carbonyl group e.g., methoxycarbonyl, ethoxycarbonyl
• Ci-6 alkoxy group e.g., methoxy
• a halogen atom e.g., a fluorine atom
• Ci-6 alkoxy group e.g., methoxy, tert-butoxy
• Ci-6 alkyl group e.g., methyl, ethyl, propyl, isopropyl
• 1 to 3 C 6 -i4 aryl groups e.g., phenyl
• a C3-10 cycloalkyl group e.g., cyclopentyl
• Ci-6 alkylsulfonyl group e.g., methylsulfonyl
• an aromatic heterocyclic group e.g., pyridyl
• 1 to 3 Ci-6 alkyl groups e.g., methyl
• Ci-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• Ci-6 alkoxy group e.g., methoxy, tert-butoxy
• Ci- alkyl group(s) e.g., methyl, ethyl, propyl, isopropyl
• the "group represented by the formula: -COR 2 " for R 1 is particularly preferably a group represented by the formula: - COR 2
• Ci-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• Ci-6 alkoxy group e.g., methoxy, tert-butoxy
• Ci- alkyl group(s) e.g., methyl, ethyl, propyl, isopropyl
• Examples of the "5- or 6-membered aromatic group" of the "optionally substituted 5- or 6-membered aromatic group” for R include phenyl, pyrrolyl, pyrazolyl, imidazolyl, triazolyl (1,2,3-triazolyl, 1, 2, 4-triazolyl, 1, 3, 4-triazolyl) ,
• tetrazolyl oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, oxadiazolyl, thiadiazolyl, furyl, thienyl, pyridyl, pyridazinyl, pyrimidinyl, pyrazinyl, triazinyl and the like.
• the "5- or 6-membered aromatic group” is preferably a 5- membered aromatic heterocyclic group, phenyl or the like, more preferably pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, thiadiazolyl, phenyl or the like, particularly preferably isoxazolyl.
• the "5- or 6-membered aromatic group" of the "optionally substituted 5- or 6-membered aromatic group” for R 1 optionally has 1 to 3 substituents at substitutable positions.
• substituents include those similar to the substituents that the C 3 -i 0 cycloalkyl group and the like exemplified as the "hydrocarbon group” of the “optionally substituted hydrocarbon group", which is exemplified as the "substituent” for R 2 , optionally has.
• the "optionally substituted 5- or 6-membered aromatic group" for R 1 is preferably a 5-membered aromatic heterocyclic group (e.g., pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, thiadiazolyl, preferably isoxazolyl) or phenyl, each of which is optionally substituted by 1 to 3 substituents selected from
• Ci-6 alkyl-carbonyl group optionally substituted by 1 to 3 halogen atoms
• Ci-6 alkoxy-carbonyl group optionally substituted by 1 to 3 substituents selected from
• Ci-6 alkyl group optionally substituted by 1 to 3 substituents selected from
• the "optionally substituted 5- or 6-membered aromatic group" for R 1 is more preferably a 5-membered aromatic
• heterocyclic group e.g., pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, thiadiazolyl, preferably isoxazolyl
• phenyl each of which is optionally substituted by 1 to 3 substituents selected from (i) a halogen atom and (ii) a Ci-6 alkyl group.
• the "optionally substituted 5- or 6-membered aromatic group" for R 1 is still more preferably a 5-membered aromatic heterocyclic group (e.g., pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, thiadiazolyl, preferably isoxazolyl) optionally substituted by 1 to 3 substituents selected from a Ci-6 alkyl group.
• a 5-membered aromatic heterocyclic group e.g., pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, thiadiazolyl, preferably isoxazolyl
• R 1 is preferably
• R 2 is an optionally substituted Ci- 6 alkyl group, an optionally
• Ci- 6 alkoxy group an optionally substituted C 3 -i 0 cycloalkyl group, an optionally substituted C 6 -i4 aryl group, an optionally substituted amino group, an optionally substituted aromatic heterocyclic group, an optionally substituted non- aromatic heterocyclic group or the like; or
• R 1 is preferably (1) a group represented by the formula: -COR 2
• R 2 is ⁇
• a C-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• a C-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• Ci-6 alkoxy-carbonyl group e.g., methoxycarbonyl, ethoxycarbonyl
• Ci-6 alkoxy group e.g., methoxy
• a halogen atom e.g., a fluorine atom
• Ci-6 alkoxy group e.g., methoxy, tert-butoxy
• a C3-10 cycloalkyl group e.g., cyclopropyl
• Ci-6 alkyl group e.g., methyl, ethyl, propyl, isopropyl
• 1 to 3 C 6 -i4 aryl groups e.g., phenyl
• a C3-10 cycloalkyl group e.g., cyclopentyl
• Ci-6 alkylsulfonyl group e.g., methylsulfonyl
• an aromatic heterocyclic group e.g., pyridyl
• Ci- 6 alkyl groups e.g., methyl
• an aromatic heterocyclic group e.g., furyl, pyrazolyl, pyridyl, isoxazolyl, thiazolyl
• an aromatic heterocyclic group e.g., furyl, pyrazolyl, pyridyl, isoxazolyl, thiazolyl
• 1 to 3 substituents selected from a Ci_ 6 alkyl group optionally substituted by 1 to 3 halogen atoms (e.g., a fluorine
• a 5-membered aromatic heterocyclic group e.g., pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, thiadiazolyl, preferably isoxazolyl
• phenyl each of which is optionally substituted by 1 to 3 substituents selected from
• Ci_6 alkyl-carbonyl group optionally substituted by 1 to 3 halogen atoms
• Ci_ 6 alkoxy-carbonyl group optionally substituted by 1 to 3 substituents selected from
• Ci-6 alkyl group optionally substituted by 1 to 3 substituents selected from
• R 1 is more preferably
• R 2 is an optionally substituted C-6 alkyl group, an optionally
• Ci- 6 alkoxy group an optionally substituted, amino group or the like;
• R 1 is more preferably
• Ci-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• a Ci-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• Ci-6 alkoxy-carbonyl group e.g., methoxycarbonyl, ethoxycarbonyl
• a C6-1 aryl group e.g., phenyl
• Ci-6 alkoxy group e.g., methoxy
• a halogen atom e.g., a fluorine atom
• Ci-6 alkoxy group e.g., methoxy, tert-butoxy
• Ci-6 alkyl group e.g., methyl, ethyl, propyl, isopropyl
• aryl groups e.g., phenyl
• a C3-10 cycloalkyl group e.g., cyclopentyl
• Ci-6 alkylsulfonyl group e.g., methylsulfonyl
• a 5-membered aromatic heterocyclic group e.g., pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, thiadiazolyl, preferably isoxazolyl
• phenyl each of which is optionally substituted by 1 to 3 substituents selected from (i) a halogen atom and (ii) a Ci-6 alkyl group.
• R 1 is further more preferably
• Ci-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• Ci-6 alkoxy group e.g., methoxy, tert-butoxy
• Ci- alkyl group(s) e.g., methyl, ethyl, propyl, isopropyl; or the like; or
• a 5-membered aromatic heterocyclic group e.g., pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, thiadiazolyl, preferably isoxazolyl
• a 5-membered aromatic heterocyclic group e.g., pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, thiadiazolyl, preferably isoxazolyl
• R 1 is still more preferably
• Ci_6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• Ci_6 alkoxy group e.g., methoxy, tert-butoxy
• Ci_ alkyl group (s) e.g., methyl, ethyl, propyl, isopropyl
• R 1 is particularly preferably
• Ci_6 alkyl group e.g., methyl, ethyl, propyl, butyl, isobutyl, isopentyl
• Ci-6 alkoxy group e.g., methoxy, tert-butoxy
• Ci- 6 alkyl group e.g., methyl, ethyl, propyl, isopropyl
• ring P is an optionally further substituted 5-membered aromatic ring
• ring Q is an optionally further substituted 6- membered ring
• ring P and ring Q are fused to form an optionally further substituted bicyclic aromatic ring, or
• ring P is an optionally further substituted 5-membered non-aromatic ring
• ring Q is an optionally further substituted 6-membered aromatic ring
• ring P and ring Q are fused to form an optionally further substituted bicyclic non-aromatic ring.
• ring P is an optionally further substituted 5-membered aromatic ring
• ring Q is an optionally further substituted 6- membered ring
• ring P and ring Q are fused to form an optionally further substituted bicyclic aromatic ring
• "optionally further substituted 5-membered aromatic ring" for ring P include pyrrole, pyrazole, imidazole, triazole (1,2,3- triazole, 1, 2, 4-triazole, 1, 3, 4-triazole) , tetrazole, oxazole, isoxazole, thiazole, isothiazole, oxadiazole, thiadiazole, furan, thiophene and the like. Of these, oxazole, thiazole, pyrazole and 1, 2, 3-triazole are preferable, and pyrazole, oxazole and thiazole are particularly preferable.
• the "5-membered aromatic ring" of the "optionally further substituted 5-membered aromatic ring” for ring P optionally has 1 or 2 substituents, besides ring A, at substitutable position.
• substituents include those similar to the substituents that the C3-10 cycloalkyl group and the like exemplified as the "hydrocarbon group” of the “optionally substituted hydrocarbon group", which is exemplified as the "substituent” for R 2 , optionally has.
• a halogen atom e.g., a fluorine atom, a chlorine atom, a bromine atom
• Ci-6 alkyl group e.g., methyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• a C 3 -6 cycloalkyl group e.g., cyclopropyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• Examples of the "6-membered ring" of the "optionally further substituted 6-membered ring” for ring Q include benzene, pyridine, pyridazine, pyrimidine, pyrazine, triazine, cyclohexa-1, 3-diene, dihydropyridine and the like. Of these, benzene, 1, 2-dihydropyridine and cyclohexa-1, 3-diene are particularly preferable.
• substituted 6-membered ring for ring Q optionally has, besides the group -O-R 6 , 1 to 3 substituents at substitutable positions.
• substituents include those similar to the substituents that the C3-10 cycloalkyl group and the like exemplified as the "hydrocarbon group” of the "optionally substituted hydrocarbon ' group", which is exemplified as the "substituent” for R 2 , optionally has.
• a halogen atom e.g., a fluorine atom, a chlorine atom, a bromine atom
• Ci-6 alkyl group e.g., methyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• a C3-6 cycloalkyl group e.g., cyclopropyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• the "bicyclic aromatic ring" of the "optionally further substituted bicyclic aromatic ring” formed by fusion of ring P and ring Q optionally has, besides the group of R 6 -0-, 1 to 3 substituents at substitutable positions on the ring Q, and optionally has, besides ring A, . 1 or 2 substituents at substitutable positions on the ring P.
• substituents include those similar to the substituents that the C3-10 cycloalkyl group and the like exemplified as the
• hydrocarbon group of the "optionally substituted hydrocarbon group”, which is exemplified as the "substituent” for R 2 , optionally has.
• substituted bicyclic aromatic ring formed by fusion of ring P and ring Q include
• a halogen atom e.g., a fluorine atom, a chlorine atom, a bromine atom
• a halogen atom e.g., a fluorine atom, a chlorine atom, a bromine atom
• Ci-6 alkyl group e.g., methyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• a C3-6 cycloalkyl group e.g., cyclopropyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• the "optionally further substituted bicyclic aromatic ring" formed by fusion of ring P and ring Q is preferably
• a halogen atom e.g., a fluorine atom, a chlorine atom, a bromine atom
• Ci-6 alkyl group e.g., methyl
• halogen atoms e.g., a fluorine atom
• C 3 -6 cycloalkyl group e.g., cyclopropyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• the "optionally further substituted bicyclic aromatic heterocycle" formed by fusion of ring P and ring Q . is more preferably
• a halogen atom e.g., a fluorine atom, a chlorine atom, a bromine atom
• Ci- 6 alkyl group e.g., methyl
• halogen atoms e.g., a fluorine atom
• a C3-6 cycloalkyl group e.g., cyclopropyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• a halogen atom e.g., a fluorine atom, a chlorine atom, a bromine atom
• Ci-6 alkyl group e .g. , methyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• a C3-6 cycloalkyl group e.g., cyclopropyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• (2) ring P is an optionally further substituted 5-membered non-aromatic ring
• ring Q is an optionally further substituted 6-membered aromatic ring
• ring P and ring Q are fused to form an optionally further substituted bicyclic non-aromatic - ring.
• ring P optionally further substituted 5-membered non-aromatic ring
• ring P include cyclopentene, dihydrofuran,
• the "5-membered non-aromatic ring" of the "optionally further substituted 5-membered non-aromatic ring" for ring P optionally has, besides ring A, 1 to 5 substituents at
• substituents include those similar to the substituents that the C3-10 cycloalkyl group and the like exemplified as the "hydrocarbon group” of the “optionally substituted hydrocarbon group", which is exemplified as the "substituent” for R 2 ., optionally has.
• substituted 5-membered non-aromatic ring for ring P include
• a halogen atom e.g., a fluorine atom, a chlorine atom, a bromine atom
• Ci-6 alkyl group e.g., methyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• a C3-6 cycloalkyl group e.g., cyclopropyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• ring Q optionally further substituted 6-membered aromatic ring
• ring Q include benzene, pyridine, pyridazine, pyrimidine, pyrazine, triazine and the like.
• the "6-membered aromatic ring" of the "optionally further substituted 6-membered aromatic ring" for ring Q optionally has, besides the group R 6 -0-, 1 to 3 substituents at
• substituents include those similar to the substituents that the C3-10 cycloalkyl group and the like exemplified as the "hydrocarbon group” of the “optionally substituted hydrocarbon group", which is exemplified as the "substituent” for R 2 , optionally has.
• a halogen atom e.g., a fluorine atom, a chlorine atom, a bromine atom
• Ci-6 alkyl group e.g., methyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• a C3-6 cycloalkyl group e.g., cyclopropyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• bicyclic non-aromatic ring of the "optionally further substituted bicyclic non-aromatic ring” formed by fusion of ring P and ring Q optionally has, besides ring A, 1 to 5 substituents at substitutable positions on the ring P, and optionally has, besides the group -O-R 6 , 1 to 3
• substituents include those similar to the substituents that the C3-10 cycloalkyl group and the like exemplified as the "hydrocarbon group” of the “optionally substituted hydrocarbon group", which is exemplified as the "substituent” for R 2 , optionally has.
• a halogen atom e.g., a fluorine atom, a chlorine atom, a bromine atom
• Ci- 6 alkyl group e.g., methyl
• halogen atoms e.g., a fluorine atom
• a C3-6 cycloalkyl group e.g., cyclopropyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• the "optionally further substituted bicyclic non-aromatic ring" formed by fusion of ring P and ring Q is preferably
• a halogen atom e.g., a fluorine atom, a chlorine atom, a bromine atom
• Ci-6 alkyl group (e.g., methyl) optionally substituted by 1 to 3 halogen atoms (e.g., a fluorine atom),
• a C3-6 cycloalkyl group e.g., cyclopropyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• the "optionally further substituted bicyclic non-aromatic ring" formed by fusion of ring P and ring Q is more preferably [0139] [0140]
• a halogen atom e.g., a fluorine atom, a chlorine atom, a bromine atom
• Ci-6 alkyl group e.g., methyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• a C 3 -6 cycloalkyl group e.g., cyclopropyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• the "optionally further substituted bicyclic non-aromatic ring" formed by fusion of ring P and ring Q is still more preferably
• a halogen atom e.g., a fluorine atom, a chlorine atom, a bromine atom
• a C1-6 alkyl group e.g., methyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• a C3-6 cycloalkyl group e.g., cyclopropyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• a halogen atom e.g., a fluorine atom, a chlorine atom, a bromine atom
• Ci-6 alkyl group e.g., methyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• a C 3 -6 cycloalkyl group e.g., cyclopropyl
• a halogen atoms e.g., a fluorine atom
• a halogen atom e.g., a fluorine atom, a chlorine atom, a bromine atom
• Ci-6 alkyl group e.g., methyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• a C 3 -6 cycloalkyl group e.g., cyclopropyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• a halogen atom e.g., a fluorine atom, a chlorine atom, a bromine atom
• Ci- 6 alkyl group e.g., methyl
• halogen atoms e.g., a fluorine atom
• a C 3 -6 cycloalkyl group e.g., cyclopropyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• R 3 is a Ci-6 alkyl group optionally substituted by halogen atom(.s), or an optionally substituted C3-6 cycloalkyl group.
• the "Ci-6 alkyl group" of the "Ci- 6 alkyl group optionally substituted by halogen atom(s)" for R 3 optionally has
• C3-6 cycloalkyl group" of the “optionally substituted C3-6 cycloalkyl group” for R 3 include cyclopropyl, cyclobutyl, cyclopentyl and cyclohexyl.
• C3-6 cycloalkyl group" of the "optionally substituted C 3 -6 cycloalkyl group” for R 3 optionally has 1 to.7 substituents at substitutable positions.
• substituents include those similar to the substituents that the C3-10
• R 3 is preferably a Ci-6 alkyl group optionally substituted by 1 to 7 (preferably 1 to 3) halogen atoms (e.g., a fluorine atom) , or a C 3 _ 6 cycloalkyl group, more preferably a Ci_ 6 alkyl group optionally substituted by 1 to 3 halogen atoms (e.g., a fluorine atom) , still more preferably a Ci-6 alkyl group, particularly preferably methyl.
• 1 to 7 preferably 1 to 3 halogen atoms
• C 3 _ 6 cycloalkyl group more preferably a Ci_ 6 alkyl group optionally substituted by 1 to 3 halogen atoms (e.g., a fluorine atom) , still more preferably a Ci-6 alkyl group, particularly preferably methyl.
• R a and R 4b are independently a hydrogen atom or a
• Examples of the "substituent" for R 4a or R 5b include those similar to the "substituent" for R 2 .
• R 4a is preferably a hydrogen atom or a fluorine atom, particularly preferably a hydrogen atom.
• R 4b is preferably a hydrogen atom or a fluorine atom, particularly preferably a hydrogen atom.
• X is 0, CO, CR 5a R 5b wherein R 5a and R 5b are independently a hydrogen atom or a substituent, NR 5c wherein R 5c is a hydrogen atom or an optionally substituted Ci-6 alkyl group, S, SO or S(0) 2 .
• Examples of the "substituent" for R 5a or R 5b include those similar to the "substituent” for R 2 .
• Ci-6 alkyl group of the "optionally substituted Ci_ 6 alkyl group” for R 5c optionally has 1 to 3 substituents at substitutable positions.
• substituents include those similar to the substituents that the Ci-10 alkyl group and the like exemplified as the "hydrocarbon group" of the
• X is preferably 0, CO or CR 5a R 5b wherein R 5a and R 5b are the same as above, more preferably 0, CO or CH 2 , particularly preferably 0.
• R 6 is an optionally substituted Ci_ 6 alkyl group or an optionally substituted C 3 _ 6 cycloalkyl group.
• Ci-6 alkyl group of the "optionally substituted Ci- 6 alkyl group” for R 6 optionally has 1 to 3 substituents at .
• substituents include those similar to the substituents that the Ci_i 0 alkyl group and the like exemplified as the "hydrocarbon group" of the
• R 6 is preferably
• Ci-6 alkyl group e.g., methyl, ethyl, propyl, isopropyl, butyl
• a Ci-6 alkyl group optionally substituted by 1 to 3 substituents selected from
• halogen atom e.g., a fluorine* atom
• a C 3 -6 cycloalkyl group e.g., cyclopropyl, cyclobutyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• R 6 is more ' preferably a Ci_ 6 alkyl group (e.g., methyl, ethyl, propyl, isopropyl, butyl) optionally substituted by 1 to 3 substituents selected from
• halogen atom e.g., a fluorine atom
• a C 3 -6 cycloalkyl group e.g., cyclopropyl, cyclobutyl
• 1 to 3 halogen atoms e.g., a fluorine atom
• R 6 is still more preferably a Ci_ 6 alkyl group optionally substituted by 1 to 3 C 3 - 6 cycloalkyl groups optionally
• R 6 is preferably a Ci-6 alkyl group optionally substituted by 1 to 3 halogen atoms.
• Ring A is an optionally further substituted 5- or 6- membered aromatic ring.
• Examples of the "5- or 6-membered aromatic ring" of the "optionally further substituted 5- or 6-membered aromatic ring” for ring A include benzene, pyrrole, pyrazole, imidazole, triazole ( 1, 2 , 3-triazole, 1 ,2 , 4-triazole, 1, 3, -triazole) , tetrazole, oxazole, isoxazole, thiazole, isothiazole,
• oxadiazole (1, 2, 4-oxadiazole, 1, 3, 4-oxadiazole)
• thiadiazole (1, 2, -thiadiazole, 1, 3, 4-thiadiazole)
• furan, thiophene pyridine, pyridazine, pyrimidine, pyrazine, triazine and the like .
• the "5- or 6-membered aromatic ring" of the "optionally further substituted 5- or 6-membered aromatic ring" for ring A is preferably benzene, optionally oxidized pyridine,
• benzene optionally oxidized pyridine, pyrimidine, pyrazole, isoxazole or oxadiazole, still more preferably
• benzene optionally oxidized pyridine, pyrimidine, pyrazole or isoxazole.
• the "5- or 6-membered aromatic ring" of the "optionally further substituted 5- or 6-membered aromatic ring" for ring A optionally has, besides group -X-CH (R 4a ) (R 4b ) -CH (R 3 ) -NH-R 1 and ring P, 1 to 4 substituents (preferably 1 to 3 substituents) at substitutable positions. Examples of the substituent
• heterocyclic group which is exemplified as the "substituent" for R 2 , optionally has.
• Ring A is preferably benzene, optionally oxidized
• a halogen atom e.g., a fluorine atom, a chlorine atom
• Ci-6 alkyl group e.g., methyl
• halogen atoms e.g., n-butane
• Ci-6 alkoxy group e.g., methoxy
• a C 7 -i3 aralkyl group e.g., benzyl
• Ring A is more preferably benzene, optionally oxidized pyridine, pyrimidine, pyrazole, isoxazole or oxadiazole, each of which is optionally substituted by 1 to 3 substituents selected from
• a halogen atom e.g., a fluorine atom, a chlorine atom
• Ci-6 alkyl group e.g., methyl
• halogen atoms e.g., n-butane
• Ci-6 alkoxy group e.g., methoxy
• a C 7 -i3 aralkyl group e.g., benzyl
• Ring A is still more preferably benzene, optionally oxidized pyridine, pyrimidine, pyrazole or isoxazole, each of which is optionally substituted by 1 to 3 substituents
• halogen atom e.g., a fluorine atom, a chlorine atom
• Ci-6 alkyl group e.g., methyl
• Ci-6 alkoxy group e.g., methoxy
• a C 7 -i3 aralkyl group e.g., benzyl
• compound (I) include the following compounds .
• R 2 is an optionally substituted Ci_ 6 alkyl group, an optionally
• Ci_6 alkoxy group an optionally substituted C3-10 cycloalkyl group, an optionally substituted C 6 -i 4 aryl group, an optionally substituted amino group, an optionally substituted aromatic heterocyclic group or an optionally substituted non- aromatic heterocyclic group; or
• R 3 is a Ci_6 alkyl group optionally substituted by 1 to 7 halogen atoms, or a C3-6 cycloalkyl group;
• R a and R b are independently a hydrogen atom or a fluorine atom
• X is 0, CO, CR 5a R 5b wherein R 5a and R 5b is as defined above, NR 5c wherein R 5c is as defined above, S, SO or S(0) 2 ;
• ring A is benzene, pyridine, pyrazole, oxazole, isoxazole, thiazole, isothiazole, oxadiazole or thiadiazole, each of which is optionally substituted by
• a halogen atom e.g., a fluorine atom, a chlorine atom
• Ci-6 alkyl group e.g., methyl
• halogen atoms optionally substituted by 1 to 3 halogen atoms
• a halogen atom e.g., a fluorine atom, a chlorine atom
• Ci-6 alkyl group optionally substituted by halogen .
• Ci-6 alkyl group optionally substituted by 1 to 3
• Ci-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isdbutyl, isopentyl
• a' Ci-6 alkyl group e.g., methyl, ethyl, propyl, butyl, isdbutyl, isopentyl
• Ci-6 alkoxy-carbonyl group e.g., methoxycarbonyl, ethoxycarbonyl
• Ci-6 alkoxy group e.g., methoxy
• Ci-6 alkoxy group e.g., methoxy, tert-butoxy
• Ci_6 alkyl group e.g., methyl, ethyl, propyl, isopropyl
• aryl groups e.g., phenyl
• a C3-10 cycloalkyl group e.g., cyclopentyl
• Ci-6 alkylsulfonyl group e.g methylsulfonyl
• an aromatic heterocyclic group e.g., pyridyl
• Ci-6 alkyl groups e.g • r methyl
• a 5-membered aromatic heterocyclic group e.g., pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, thiadiazolyl
• phenyl each of which is optionally substituted by 1 to 3 substituents selected from (i) a halogen atom and (ii) a Ci- 6 alkyl group;
• R 3 is a Ci-6 alkyl group optionally substituted by 1 to 7
• R a and R b are independently a hydrogen atom or a fluorine atom
• X is 0 or CH 2 ;
• ring A is benzene, pyridine, pyrazole, oxazole, isoxazole, thiazole, isothiazole, oxadiazole or thiadiazole, each of which is optionally substituted by
• a halogen atom e.g., a fluorine atom, a chlorine atom
• Ci-6 alkyl group e.g.> methyl
• halogen atoms optionally substituted by 1 to 3 halogen atoms

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