2-pyridone compounds
A 2-pyridone compound represented by the formula [1]: {wherein in the formula [1], the ring represented by A represents a benzene ring or a pyridine ring, X represents any of the structures represented by the formulas [3] shown below: V represents a single bond or a lower alkylene group, and W represents a single bond, an ether bond or a lower alkylene group (wherein the lower alkylene group may contain an ether bond)}, a tautomer or stereoisomer of the compound, a pharmaceutically acceptable salt thereof, or a solvate thereof is a compound that has an excellent GK activating effect and is useful as a pharmaceutical.
1. A 2-pyridone compound represented by the formula [1]:
wherein in the formula [1],
the ring represented by A represents a benzene ring;
R 1 represents R A —Z A —,
wherein —Z A — represents a single bond or represents any of the following formulas [2]:
when —Z A — represents any of the formulas [2],
R A represents a lower alkyl group, a lower cycloalkyl group or a phenyl group (wherein the lower alkyl group, lower cycloalkyl group or phenyl group is unsubstituted or substituted with 1 to 3 groups which may be the same or different and selected from the following Substituent Group A1), or
when —Z A — represents a single bond,
R A represents a lower alkyl group, a lower cycloalkyl group or a phenyl group (wherein the lower alkyl group, lower cycloalkyl group or phenyl group is unsubstituted or substituted with 1 to 3 groups which may be the same or different and selected from the following Substituent Group A1), a hydrogen atom, a cyano group, a halogen atom, a hydroxy group, an amino group, a carbamoyl group, a sulfamoyl group or a ureido group,
R Z1 and R Z2 are the same or different and each represent a hydrogen atom or a lower alkyl group;
X represents any of the structures represented by the formulas [3] shown below:
R X represents a hydrogen atom,
R Y1 and R Y2 each represent a hydrogen atom;
R 4 represents R B —Z B —,
wherein —Z B — represents a single bond, and
R B represents an oxopyrrolidinyl group,
Substituent Group A1 represents a halogen atom, a lower cycloalkyl group, a phenyl group, a hydroxy group, a lower alkoxy group, a mono-lower alkylamino group, a di-lower alkylamino group or a lower alkylsulfonyl group;
R 2 and R 3 are the same or different and each represent a hydrogen atom, a halogen atom, a cyano group, a carbamoyl group, a lower alkyl group, a lower alkylsulfonyl group, a lower cycloalkyl group, a lower alkoxy group, a lower cycloalkoxy group (wherein the lower alkyl group, lower alkylsulfonyl group, lower cycloalkyl group, lower alkoxy group or lower cycloalkoxy group is unsubstituted or substituted with 1 to 3 halogen atoms) or a hydroxy group,
or the adjacent R 1 and R 2 together form a naphthalene ring together with the benzene ring;
R 5 represents a halogen atom, a carbamoyl group, a lower alkanoyl group, an amino group, a di-lower alkylamino group, a lower alkyl group, a lower cycloalkyl group, a lower alkoxy group, a lower cycloalkoxy group, a phenyl group or a phenoxy group (wherein the lower alkyl group, lower cycloalkyl group, lower alkoxy group, lower cycloalkoxy group, phenyl group or phenoxy group is unsubstituted or substituted with 1 to 3 groups which may be the same or different and selected from the following Substituent Group A3),
Substituent Group A3 represents a halogen atom, a hydroxy group, a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 halogen atoms), a lower cycloalkyl group, a phenyl group, a di-lower alkylamino group or a carbamoyl group;
V represents a single bond, and
W represents a single bond,
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
2. The 2-pyridone compound according to claim 1 represented by the formula [1]:
wherein in the formula [1],
the ring represented by A represents a benzene ring;
R 1 represents R A —Z A —,
wherein —Z A — represents a single bond or represents any of the following formulas [2]:
when —Z A — represents any of the formulas [2],
R A represents a lower alkyl group, a lower cycloalkyl group or a phenyl group (wherein the lower alkyl group, lower cycloalkyl group or phenyl group is unsubstituted or substituted with 1 to 3 groups which may be the same or different and selected from the following Substituent Group A1), or
when —Z A — represents a single bond,
R A represents a lower alkyl group, a lower cycloalkyl group or a phenyl group (wherein the lower alkyl group, lower cycloalkyl group or phenyl group is unsubstituted or substituted with 1 to 3 groups which may be the same or different and selected from the following Substituent Group A1), a hydrogen atom, a cyano group, a halogen atom, a hydroxy group, an amino group, a carbamoyl group, a sulfamoyl group or a ureido group,
R Z1 and R Z2 are the same or different and each represent a hydrogen atom or a lower alkyl group;
X represents any of the structures represented by the formulas [3] shown below:
R X represents a hydrogen atom,
R Y1 and R Y2 each represent a hydrogen atom;
R 4 represents R B —Z B —,
wherein —Z B — represents a single bond, and
R B represents an oxopyrrolidinyl group,
Substituent Group A1 represents a halogen atom, a lower cycloalkyl group, a phenyl group, a hydroxy group, a lower alkoxy group, a mono-lower alkylamino group, a di-lower alkylamino group or a lower alkylsulfonyl group;
R 2 and R 3 are the same or different and each represent a hydrogen atom, a halogen atom, a lower alkyl group, a lower cycloalkyl group, a lower alkoxy group or a lower cycloalkoxy group (wherein the lower alkyl group, lower cycloalkyl group, lower alkoxy group or lower cycloalkoxy group is unsubstituted or substituted with 1 to 3 halogen atoms),
or the adjacent R 1 and R 2 together form a naphthalene ring together with the benzene ring;
R 5 represents a halogen atom, a lower alkyl group, a lower cycloalkyl group, a lower alkoxy group, a lower cycloalkoxy group or a phenyl group (wherein the lower alkyl group, lower cycloalkyl group, lower alkoxy group, lower cycloalkoxy group or phenyl group is unsubstituted or substituted with 1 to 3 groups which may be the same or different and selected from the following Substituent Group A3),
Substituent Group A3 represents a halogen atom, a hydroxy group, a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 halogen atoms), a lower cycloalkyl group, a phenyl group or a di-lower alkylamino group;
V represents a single bond, and
W represents a single bond,
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
3. The 2-pyridone compound according to claim 1 represented by the formula [5]:
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
4. The 2-pyridone compound according to claim 3 represented by the formula [6]:
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
5. The 2-pyridone compound according to claim 4 represented by the formula [7]:
wherein in the formula [7],
R 4 represents R B —Z B —,
wherein —Z B — represents a single bond, and
R B represents an oxopyrrolidinyl group,
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
6. The 2-pyridone compound according to claim 5 , wherein
R 1 represents R A —Z A —,
wherein —Z A — represents a single bond or represents any of the following formulas [9]:
when —Z A — represents any of the formulas [9],
R A represents a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 groups which may be the same or different and selected from the group consisting of a halogen atom, a hydroxy group, a mono-lower alkylamino group and a di-lower alkylamino group) or a lower cycloalkyl group,
R z1 represents a hydrogen atom or a lower alkyl group, or
when —Z A — represents a single bond,
R A represents a hydrogen atom or a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 groups which may be the same or different and selected from the group consisting of a halogen atom, a hydroxy group and a lower alkoxy group);
R 2 represents a hydrogen atom, a halogen atom, a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 halogen atoms) or a lower alkoxy group;
R 4 represents R B —Z B —,
wherein —Z B — represents a single bond, and
R B represents an oxopyrrolidinyl group, and
R 5 represents a halogen atom, a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 groups which may be the same or different and selected from the group consisting of a halogen atom and a hydroxy group), a lower cycloalkyl group or a phenyl group,
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
7. The 2-pyridone compound according to claim 4 represented by the formula [10]:
wherein in the formula [10],
R 4 represents R B —Z B —,
wherein —Z B — represents a single bond, and
R B represents an oxopyrrolidinyl group,
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
8. The 2-pyridone compound according to claim 7 , wherein
R 1 represents R A —Z A —,
wherein —Z A — represents a single bond or represents any of the following formulas [9]:
when —Z A — represents any of the formulas [9],
R A represents a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 groups which may be the same or different and selected from the group consisting of a halogen atom, a hydroxy group, a mono-lower alkylamino group and a di-lower alkylamino group) or a lower cycloalkyl group,
R Z1 represents a hydrogen atom or a lower alkyl group, or
when —Z A — represents a single bond,
R A represents a hydrogen atom, a halogen atom, a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 groups which may be the same or different and selected from the group consisting of a halogen atom, a hydroxy group and a lower alkoxy group), a lower cycloalkyl group or a phenyl group;
R 2 represents a hydrogen atom, a halogen atom, a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 halogen atoms) or a lower alkoxy group (wherein the lower alkoxy group is unsubstituted or substituted with 1 to 3 halogen atoms);
R 3 represents a hydrogen atom, a halogen atom, a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 halogen atoms) or a lower alkoxy group;
R 4 represents R B —Z B —,
wherein —Z B — represents a single bond, and
R B represents an oxopyrrolidinyl group, and
R 5 represents a halogen atom, a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 groups which may be the same or different and selected from the group consisting of a halogen atom and a hydroxy group), a lower cycloalkyl group (wherein the lower cycloalkyl group is unsubstituted or substituted with one hydroxy group), a lower alkoxy group (wherein the lower alkoxy group is unsubstituted or substituted with 1 to 3 halogen atoms) or a phenyl group,
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
9. The 2-pyridone compound according to claim 8 , wherein
R 1 represents R A —Z A —,
wherein —Z A — represents a single bond or represents any of the following formulas [11]:
when —Z A — represents any of the formulas [11],
R A represents a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 halogen atoms) or a lower cycloalkyl group, or
when —Z A — represents a single bond,
R A represents a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 halogen atoms) or a halogen atom;
R 2 represents a hydrogen atom, a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 halogen atoms), a halogen atom or a lower alkoxy group;
R 3 represents a hydrogen atom or a halogen atom, and
R 5 represents a chlorine atom or a cyclopropyl group,
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
10. The 2-pyridone compound according to claim 6 or 9 , wherein
R B is a group represented by the formula [12]:
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
11. A 2-pyridone compound selected from the group consisting of:
6-{(E)-1-(3-chloro-4-ethoxyphenyl)-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}-3-cyclopropylpyridin-2(1H)-one,
6-{(E)-1-(4-chlorophenyl)-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}-3-cyclopropylpyridin-2(1H)-one,
6-{(E)-1-[3-chloro-4-(trifluoromethyl)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}-3-cyclopropylpyridin-2(1H)-one,
6-{(E)-1-(4-chloro-3-methylphenyl)-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}-3-cyclopropylpyridin-2(1H)-one,
6-{(E)-1-(4-chloro-3-fluorophenyl)-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}-3-cyclopropylpyridin-2(1H)-one,
3-cyclopropyl-6-{(E)-1-(4-fluoro-3-methylphenyl)-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}pyridin-2(1H)-one,
3-cyclopropyl-6-{(E)-1-[3-fluoro-4-(trifluoromethyl)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}pyridin-2(1H)-one,
3-cyclopropyl-6-{(E)-1-[4-fluoro-3-(trifluoromethyl)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}pyridin-2(1H)-one,
6-{(E)-1-(4-chloro-3-methoxyphenyl)-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}-3-cyclopropylpyridin-2(1H)-one,
3-cyclopropyl-6-{(E)-1-[4-(difluoromethyl)-3-fluorophenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}pyridin-2(1H)-one,
3-cyclopropyl-6-{(E)-1-[4-methoxy-3-(trifluoromethyl)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}pyridin-2(1H)-one,
3-cyclopropyl-6-{(E)-1-[3-methyl-4-(trifluoromethyl)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}pyridin-2(1H)-one,
6-{(E)-1-(4-chloro-2-fluorophenyl)-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}-3-cyclopropylpyridin-2(1H)-one,
3-cyclopropyl-6-{(E)-1-[2-fluoro-4-(trifluoromethyl)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}pyridin-2(1H)-one,
6-{(E)-1-[3-chloro-4-(cyclopropyloxy)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}-3-cyclopropylpyridin-2(1H)-one,
6-{(E)-1-[3-chloro-4-(2,2,2-trifluoroethoxy)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}-3-cyclopropylpyridin-2(1H)-one,
6-{(E)-1-(5-chloro-2-fluoro-4-methoxyphenyl)-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}-3-cyclopropylpyridin-2(1H)-one,
6-{(E)-1-[3-chloro-4-(difluoromethoxy)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}-3-cyclopropylpyridin-2(1H)-one,
3-cyclopropyl-6-{(E)-1-(4-ethoxy-2,3-difluorophenyl)-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}pyridin-2(1H)-one,
3-cyclopropyl-6-{(E)-1-[4-(cyclopropylsulfonyl)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}pyridin-2(1H)-one,
6-{(E)-1-(2-chloro-4-ethoxyphenyl)-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}-3-cyclopropylpyridin-2(1H)-one,
3-cyclopropyl-6-[(E)-2-[(2R)-5-oxopyrrolidin-2-yl]-1-{4-[(trifluoromethyl)sulfonyl]phenyl}ethenyl]pyridin-2(1H)-one,
3-chloro-6-{(E)-1-[4-(cyclopropylsulfonyl)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}pyridin-2(1H)-one,
3-chloro-6-{(E)-1-[3-chloro-4-(ethylsulfonyl)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}pyridin-2(1H)-one,
3-chloro-6-{(E)-1-[4-(cyclopentylsulfonyl)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}pyridin-2(1H)-one,
3-cyclopropyl-6-{(E)-1-[4-(methylsulfonyl)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}pyridin-2(1H)-one,
6-{(E)-1-[3-chloro-4-(cyclopropylsulfonyl)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}-3-cyclopropylpyridin-2(1H)-one,
3-cyclopropyl-6-{(E)-1-[4-(cyclopropylsulfonyl)-3-methylphenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}pyridin-2(1H)-one,
3-chloro-6-{(E)-1-[4-(cyclopropylsulfonyl)-3-methylphenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}pyridin-2(1H)-one, and
3-chloro-6-{(E)-1-[3-chloro-4-(cyclopropylsulfonyl)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethenyl}pyridin-2(1H)-one,
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
12. The 2-pyridone compound according to claim 3 represented by the formula [13]:
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
13. The 2-pyridone compound according to claim 12 represented by the formula [14]:
wherein in the formula [14],
R 4 represents R B —Z B —,
wherein —Z B — represents a single bond, and
R B represents an oxopyrrolidinyl group,
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
14. The 2-pyridone compound according to claim 13 , wherein
R 1 represents R A —Z A —,
wherein —Z A — represents a single bond or represents any of the following formulas [9]:
when —Z A — represents any of the formulas [9],
R A represents a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 groups which may be the same or different and selected from the group consisting of a halogen atom, a mono-lower alkylamino group and a di-lower alkylamino group) or a lower cycloalkyl group,
R Z1 represents a hydrogen atom or a lower alkyl group, or
when —Z A — represents a single bond,
R A represents a hydrogen atom or a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 groups which may be the same or different and selected from the group consisting of a halogen atom, and a lower alkoxy group);
R 2 represents a hydrogen atom, a halogen atom, a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 halogen atoms) or a lower alkoxy group;
R 4 represents R B —Z B —,
wherein —Z B — represents a single bond, and
R B represents an oxopyrrolidinyl group, and
R 5 represents a halogen atom, a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 groups which may be the same or different and selected from the group consisting of a halogen atom and a hydroxy group), a lower cycloalkyl group or a phenyl group,
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
15. The 2-pyridone compound according to claim 12 represented by the formula [15]:
wherein in the formula [15],
R 4 represents R B —Z B —,
wherein —Z B — represents a single bond, and
R B represents an oxopyrrolidinyl group,
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
16. The 2-pyridone compound according to claim 15 , wherein
R 1 represents R A —Z A —,
wherein —Z A — represents a single bond or represents any of the following formulas [9]:
when —Z A — represents any of the formulas [9],
R A represents a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 groups which may be the same or different and selected from the group consisting of a halogen atom, a hydroxy group, a mono-lower alkylamino group and a di-lower alkylamino group) or a lower cycloalkyl group,
R Z1 represents a hydrogen atom or a lower alkyl group, or
when —Z A — represents a single bond,
R A represents a hydrogen atom, a halogen atom, a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 groups which may be the same or different and selected from the group consisting of a halogen atom, a hydroxy group, and a lower alkoxy group), a lower cycloalkyl group or a phenyl group;
R 2 represents a hydrogen atom, a halogen atom, a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 halogen atoms) or a lower alkoxy group (wherein the lower alkoxy group is unsubstituted or substituted with 1 to 3 halogen atoms);
R 3 represents a hydrogen atom, a halogen atom, a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 halogen atoms) or a lower alkoxy group;
R 4 represents R B —Z B —,
wherein —Z B — represents a single bond, and
R B represents an oxopyrrolidinyl group, and
R 5 represents a halogen atom, a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 groups which may be the same or different and selected from the group consisting of a halogen atom and a hydroxy group), a lower cycloalkyl group (wherein the lower cycloalkyl group is unsubstituted or substituted with one hydroxy group), a lower alkoxy group (wherein the lower alkoxy group is unsubstituted or substituted with 1 to 3 halogen atoms) or a phenyl group,
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
17. The 2-pyridone compound according to claim 16 , wherein
R 1 represents R A —Z A —,
wherein —Z A — represents a single bond or represents any of the following formulas [11]:
when —Z A — represents any of the formulas [11],
R A represents a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 halogen atoms) or a lower cycloalkyl group, or
when —Z A — represents a single bond,
R A represents a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 halogen atoms) or a halogen atom;
R 2 represents a hydrogen atom, a lower alkyl group (wherein the lower alkyl group is unsubstituted or substituted with 1 to 3 halogen atoms), a halogen atom or a lower alkoxy group;
R 3 represents a hydrogen atom or a halogen atom, and
R 5 represents a chlorine atom or a cyclopropyl group,
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
18. The 2-pyridone compound according to claim 14 or 17 , wherein
R B is a group represented by the formula [12]:
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
19. A 2-pyridone compound selected from the group consisting of:
6-{1-(4-chloro-3-methylphenyl)-2-[(2R)-5-oxopyrrolidin-2-yl]ethyl}-3-cyclopropylpyridin-2(1H)-one,
6-{1-[4-chloro-3-(trifluoromethyl)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethyl}-3-cyclopropylpyridin-2(1H)-one,
3-cyclopropyl-6-{1-[4-(difluoromethyl)-3-methylphenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethyl}pyridin-2(1H)-one,
3-cyclopropyl-6-{1-[4-(difluoromethyl)-3-fluorophenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethyl}pyridin-2(1H)-one,
6-{1-[3-chloro-4-(trifluoromethyl)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethyl}-3-cyclopropylpyridin-2(1H)-one,
6-{1-[3-chloro-4-(propan-2-yloxy)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethyl}-3-cyclopropylpyridin-2(1H)-one,
3-cyclopropyl-6-{1-[3-methyl-4-(trifluoromethyl)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethyl}pyridin-2(1H)-one,
6-{1-[3-chloro-4-(cyclopropyloxy)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethyl}-3-cyclopropylpyridin-2(1H)-one,
6-{1-(5-chloro-2-fluoro-4-methoxyphenyl)-2-[(2R)-5-oxopyrrolidin-2-yl]ethyl}-3-cyclopropylpyridin-2(1H)-one,
6-{1-[3-chloro-4-(difluoromethoxy)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethyl}-3-cyclopropylpyridin-2(1H)-one,
3-cyclopropyl-6-{1-[4-(cyclopropylsulfonyl)-3-methylphenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethyl}pyridin-2(1H)-one,
3-chloro-6-{1-[3-chloro-4-(cyclopropylsulfonyl)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethyl}pyridin-2(1H)-one and
6-{1-[3-chloro-4-(cyclopropylsulfonyl)phenyl]-2-[(2R)-5-oxopyrrolidin-2-yl]ethyl}-3-cyclopropylpyridin-2(1H)-one,
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.
20. A pharmaceutical composition comprising, as an active ingredient, the 2-pyridone compound according to claim 1 , a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier or diluent.
21. A method for activating glucokinase comprising administering an effective amount of the compound according to claim 1 to a subject in need thereof.
22. A method for treating diabetes or obesity comprising administering an effective amount of the compound according to claim 1 to a subject in need thereof.
23. The 2-pyridone compound according to claim 18 ,
wherein R 1 represents R A —Z A —, wherein —Z A — is a single bond, and R A is a C 1-2 alkyl group which is unsubstituted or substituted with 1 to 3 fluorine atoms;
R 2 is a hydrogen atom;
R 3 is a hydrogen atom, and
R 5 is a cyclopropyl group,
a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof.