Fused ring compound having urea structure

1. A pharmaceutical composition comprising a compound of formula (I), or a pharmaceutically acceptable salt thereof:

wherein:

ring B is

R 1 is a hydrogen atom or a halogen atom;

R 2 is a hydrogen atom; a phenyl group or a heteroaryl group optionally substituted with one or more Y; or a C 1 -C 6 alkyl group optionally substituted with a C 3 -C 6 cycloalkyl group, or is absent;

R 3 is a hydrogen atom; a cyano group; a phenyl group or a heteroaryl group each optionally substituted with one or more Y; a C 1 -C 4 alkylcarbonyl group or a C 1 -C 4 alkyl group, each optionally substituted with one or more Z; or —C(═O)—Z;

each Y is independently selected from a C 1 -C 6 alkyl group, a C 1 -C 6 alkoxy group, a phenyl group, a C 1 -C 3 alkylsulfonyl group, a C 1 -C 3 haloalkyl group, a halogen atom, and a C 1 -C 3 alkyl group or a C 1 -C 3 alkoxy group substituted with a C 1 -C 3 alkoxy group;

each Z is independently selected from a C 1 -C 3 alkoxy group, a dioxanyl group, an 8-oxa-3-azabicyclo[3.2.1]octyl group, a C 1 -C 4 alkoxycarbonyl group, and an amino group or a C 3 -C 6 cycloalkylamino group each optionally substituted with one or more W; and

each W is independently selected from a phenyl group, a heteroaryl group, a C 1 -C 3 alkyl group, a C 1 -C 3 alkyl group substituted with phenyl, and a C 1 -C 3 alkyl group substituted with a heteroaryl group; and

at least one pharmaceutically acceptable excipient.

2. The pharmaceutical composition of claim 1 , wherein A is

3. The pharmaceutical composition of claim 1 , wherein A is

4. The pharmaceutical composition of claim 1 , wherein A is

5. The pharmaceutical composition of claim 1 , wherein B is

6. The pharmaceutical composition of claim 1 , wherein R 1 is a hydrogen atom or a fluorine atom.

7. The pharmaceutical composition of claim 1 , wherein R 2 is a hydrogen atom; a phenyl group, a pyrazolyl group, a pyridinyl group, or a pyrrole group each optionally substituted with one Y; or a C 1 -C 3 alkyl group optionally substituted with a C 3 -C 6 cycloalkyl group; wherein Y is selected from a phenyl group, a halogen atom, a C 1 -C 4 alkyl group, a C 1 -C 3 haloalkyl group, a C 1 -C 3 alkylsulfonyl group, a C 1 -C 3 alkoxy group, and a C 1 -C 3 alkyl group or a C 1 -C 3 alkoxy group substituted with a C 1 -C 3 alkoxy group.

8. The pharmaceutical composition of claim 1 , wherein R 2 is a hydrogen atom; a phenyl group, a pyrazolyl group, or a pyridinyl group each optionally substituted with one Y; or a C 1 -C 3 alkyl group; wherein Y is selected from a C 1 -C 4 alkyl group, a methanesulfonyl group, an ethanesulfonyl group, a methoxy group, an ethoxy group, a 2-methoxyethoxy group, a phenyl group, a trifluoromethyl group, a difluoromethyl group, a 2-methoxyethyl group, and a chlorine atom.

9. The pharmaceutical composition of claim 1 , wherein ring B is

R 3 is a hydrogen atom; a cyano group; a C 1 -C 4 alkyl group; a phenyl group or a heteroaryl group each optionally substituted with one or more Y; an ethylcarbonyl group or a methyl group each optionally substituted with one or more Z; or —C(═O)—Z; wherein each Y is independently selected from a C 1 -C 3 alkyl group, a C 1 -C 3 alkoxy group, a phenyl group, and a halogen atom, a C 1 -C 3 alkylsulfonyl group, a C 1 -C 3 haloalkyl group, and a C 1 -C 3 alkyl group or a C 1 -C 3 alkoxy group each substituted with a C 1 -C 3 alkoxy group; wherein each Z is independently selected from a C 1 -C 2 alkoxy group, a dioxanyl group, an 8-oxa-3-azabicyclo[3.2.1]octyl group, and an amino group or a C 3 -C 6 cycloalkylamino group each optionally substituted with one or more W; and wherein each W is independently selected from a phenyl group, a heteroaryl group, a C 1 -C 3 alkyl group, a C 1 -C 3 alkyl group substituted with phenyl, and a C 1 -C 3 alkyl group substituted with a heteroaryl group.

10. The pharmaceutical composition of claim 1 , wherein ring B is

R 3 is a hydrogen atom, a cyano group, a N-methylpyrazolyl group, a phenyl group, a methyl group, a 2-methoxyethyl group, a dioxanylmethyl group, or —C(═O)—Z; wherein Z is selected from an 8-oxa-3-azabicyclo[3.2.1]octyl group and an amino group optionally substituted with one or more W; and wherein each W is independently selected from a C 1 -C 3 alkyl group, a methylphenyl group, and a C 1 -C 3 alkyl group substituted with a heteroaryl group.

11. The pharmaceutical composition of claim 1 , wherein the compound is selected from the group consisting of:

N-(2-phenyl-1,3-benzoxazol-5-yl)-N′-[(pyridin-4-yl)methyl]urea,

N-(2-phenyl-1,3-benzoxazol-6-yl)-N′-[(pyridin-4-yl)methyl]urea,

N-[2-(2-methylphenyl)-1,3-benzoxazol-6-yl]-N′-[(pyridin-4-yl)methyl]urea,

N-[(1,3-oxazol-5-yl)methyl]-N-(2-phenyl-1,3-benzoxazol-6-yl)urea,

N-[2-(1-methyl-1H-pyrazol-4-yl)-1,3-benzoxazol-6-yl]-NL[(pyridin-4-yl)methyl]urea,

N-(5-fluoro-2-phenyl-1,3-benzoxazol-6-yl)-N′-[(pyridin-4-yl)methyl]urea,

N-(2-phenylimidazo[1,2-a]pyridin-7-yl)-N′-[(pyridin-4-yl)methyl]urea,

N-(2-phenyl-1H-indol-5-yl)-N′-[(pyridin-4-yl)methyl]urea,

methyl[2-phenyl-5-({[(pyridin-4-yl)methyl]carbamoyl}amino)-1H-indol-1-yl]acetate,

N-{2-[3-(methanesulfonyl)phenyl]-1-methyl-1H-indol-5-yl}-N′-[(pyridin-4-yl)methyl]urea,

N-{2-[3-(2-methoxyethoxy)phenyl]-1-methyl-1H-indol-5-yl}-N′-[(pyridin-4-yl)methyl]urea,

N-[1-(2-methoxyethyl)-2-phenyl-1H-indol-5-yl]-N′-[(pyridin-4-yl)methyl]urea,

N-[1-methyl-2-(pyridin-2-yl)-1H-indol-5-yl]-N′-[(pyridin-4-yl)methyl]urea,

N-(1-methyl-2-phenyl-1H-indol-5-yl)-N′-[(pyridin-4-yl)methyl]urea,

N-{1-[(1,4-dioxan-2-yl)methyl]-2-phenyl-1H-indol-5-yl}-N′-[(pyridin-4-yl)methyl]urea,

N,N-dimethyl-2-phenyl-5-({[(pyridin-4-yl)methyl]carbamoyl}amino)-1H-indole-1-carboxamide,

N-[1-(2-methylpropyl)-1H-indazol-5-yl]-N′-[(pyridin-4-yl)methyl]urea,

N-(2-phenyl[1,2,4]triazolo[1,5-a]pyridin-6-yl)-N′-[(pyridin-4-yl)methyl]urea,

N-[(1,3-oxazol-5-yl)methyl]-N′-(2-phenyl[1,2,4]triazolo[1,5-a]pyridin-6-yl)urea,

N-(2-phenyl[1,2,4]triazolo[1,5-a]pyridin-6-yl)-N′-[(1H-pyrazol-4-yl)methyl]urea,

N-[2-(2-butylphenyl) [1,2,4]triazolo[1,5-a]pyridin-6-yl]-N′-[(pyridin-4-yl)methyl]urea,

N-[2-(1-phenyl-TH-pyrrol-2-yl)[1,2,4]triazolo[1,5-a]pyridin-6-yl]-N′-[(pyridin-4-yl)methyl]urea,

N-[2-(1-methyl-1H-pyrazol-5-yl)[1,2,4]triazolo[1,5-a]pyridin-6-yl]-N′-[(pyridin-4-yl)methyl]urea,

N-[(pyridin-4-yl)methyl]-N′-{2-[2-(trifluoromethyl)phenyl][1,2,4]triazolo[1,5-a]pyridin-6-yl}urea,

N-(2-phenyl[1,2,4]triazolo[1,5-a]pyridin-7-yl)-N′-[(pyridin-4-yl)methyl]urea,

N-(2-phenylpyrazolo[1,5-a]pyridin-6-yl)-N′-[(pyridin-4-yl)methyl]urea,

N-(2-phenylpyrazolo[1,5-a]pyrimidin-6-yl)-N′-[(pyridin-4-yl)methyl]urea,

N-(3-methyl-2-phenylpyrazolo[1,5-a]pyridin-6-yl)-N′-[(pyridin-4-yl)methyl]urea,

N-(3-cyano-2-phenylpyrazolo[1,5-a]pyridin-6-yl)-N′-[(pyridin-4-yl)methyl]urea,

N-[2-(3-methoxyphenyl)pyrazolo[1,5-a]pyridin-6-yl]-N′-[(pyridin-4-yl)methyl]urea,

N,N-dimethyl-2-phenyl-6-({[(pyridin-4-yl)methyl]carbamoyl}amino)pyrazolo[1,5-a]pyridine-3-carboxamide,

N-[3-(1-methyl-1H-pyrazol-5-yl)-2-phenylpyrazolo[1,5-a]pyridin-6-yl]-N′-[(pyridin-4-yl)methyl]urea,

4-fluoro-N,N-dimethyl-2-phenyl-6-({[(pyridin-4-yl)methyl]carbamoyl}amino)pyrazolo[1,5-a]pyridine-3-carboxamide,

N-(2-phenyl-2H-indazol-6-yl)-N′-[(pyridin-4-yl)methyl]urea,

N-[(1,3-oxazol-5-yl)methyl]-N′-(2-phenyl-2H-indazol-6-yl)urea,

N-[2-(3-methoxyphenyl)-2H-indazol-6-yl]-N′-[(pyridin-4-yl)methyl]urea,

N-{2-[2-(2-methoxyethoxy)phenyl]-2H-indazol-6-yl}-N′-[(pyridin-4-yl)methyl]urea,

N-(3-methyl-2-phenyl-2H-indazol-6-yl)-N′-[(pyridin-4-yl)methyl]urea,

N-{2-[3-(methanesulfonyl)phenyl]-2H-indazol-6-yl}-N′-[(pyridin-4-yl)methyl]urea,

N-(3-cyano-2-phenyl-2H-indazol-6-yl)-N′-[(pyridin-4-yl)methyl]urea,

N,N-diethyl-2-phenyl-6-({[(pyridin-4-yl)methyl]carbamoyl}amino)-2H-indazole-3-carboxamide,

N-[2-phenyl-3-(pyrrolidine-1-carbonyl)-2H-indazol-6-yl]-N′-[(pyridin-4-yl)methyl]urea,

N-[3-cyano-2-(2-methoxypyridin-4-yl)-2H-indazol-6-yl]-N′-[(pyridin-4-yl)methyl]urea,

N-[2-(2-chlorophenyl)-3,4-dihydro-2H-1,4-benzoxazin-7-yl]-N′-[(pyridin-4-yl)methyl]urea,

N-[4-(2-methoxyethyl)-2-phenyl-3,4-dihydro-2H-1,4-benzoxazin-7-yl]-N′-[(pyridin-4-yl)methyl]urea,

2-(2-chlorophenyl)-N-ethyl-7-({[(pyridin-4-yl)methyl]carbamoyl}amino)-2,3-dihydro-4H-1,4-benzoxazine-4-carboxamide,

N-(2-phenyl-3,4-dihydro-2H-1,4-benzoxazin-7-yl)-N′-[(pyridin-4-yl)methyl]urea,

N-(3-phenyl-5-propanoyl-2,3,4,5-tetrahydro-1,5-benzoxazepin-8-yl)-N′-[(pyridin-4-yl)methyl]urea,

N-(1-acetyl-2-phenyl-2,3-dihydro-1H-indol-5-yl)-N′-[(pyridin-4-yl)methyl]urea,

N,N-diethyl-6-({[(pyridin-4-yl)methyl]carbamoyl amino)-1,2-benzoxazole-3-carboxamide,

N-(2-phenyl-2,3-dihydro-1-benzofuran-6-yl)-N′-[(pyridin-4-yl)methyl]urea,

N-[2-(3-methoxyphenyl)-2,3-dihydro-1-benzofuran-6-yl]-N′-[(pyridin-4-yl)methyl]urea,

N-[(2S,3S)-2-(3-methoxyphenyl)-3-methyl-2,3-dihydro-1-benzofuran-6-yl]-N′-[(pyridin-4-yl)methyl]urea,

N-(3-phenyl-2,3-dihydro-1-benzofuran-6-yl)-N′-[(pyridin-4-yl)methyl]urea,

N,N-diethyl-6-({[(pyridin-4-yl)methyl]carbamoyl}amino)-1-benzofuran-3-carboxamide,

N-benzyl-N-ethyl-6-({[(pyridin-4-yl)methyl]carbamoyl}amino)-1,2-benzoxazole-3-carboxamide, and

N-[3-(8-oxa-3-azabicyclo[3.2.1]octane-3-carbonyl)-1,2-benzoxazol-6-yl]-N′-[(pyridin-4-yl)methyl]urea, or a pharmaceutically acceptable salt thereof.

12. The pharmaceutical composition of claim 1 , wherein the pharmaceutical composition is formulated for oral administration, intravenous injection, subcutaneous injection, inhalation, nasal administration, dermal administration, or ophthalmic administration.

13. The pharmaceutical composition of claim 1 , wherein the pharmaceutical composition is in a tablet, or a capsule.

14. The pharmaceutical composition of claim 1 , further comprising a second therapeutic agent.

15. A method of treating a disease or condition mediated by nicotinamide phosphoribosyltransferase (NAMPT) activity in a mammal comprising administering a pharmaceutical composition of claim 1 to the mammal.

16. The method of claim 15 , wherein the disease or condition is a metabolic disorder, a cardiovascular disease, a kidney disease, a mitochondrial disease, a neurodegenerative disease, an ocular disease, or a muscle wasting disorder.

17. The pharmaceutical composition of claim 1 , wherein the compound is selected from the group consisting of

or a pharmaceutically acceptable salt thereof.

18. A compound selected from:

or a pharmaceutically acceptable salt thereof.

19. A compound selected from:

or a pharmaceutically acceptable salt thereof.