Patent ID: 8592452

Claim:
A compound represented by the formula (II) wherein ring A is a pyrrolidine ring or a piperidine ring, R 1 is a cyano group, R 2 is a hydrogen atom, a cyano group, a halogen atom, a C 1-6 alkyl group substituted with 1 to 5 halogen atoms, or a C 1-6 alkoxy group, R 3 is a hydrogen atom, a cyano group, a halogen atom, a C 1-6 alkyl group substituted with 1 to 5 halogen atoms, a C 1-6 alkoxy group, a C 1-6 alkyl group, or a C 1-6 alkyl group substituted with hydroxy group(s), R 4 is a hydrogen atom, a halogen atom, or a cyano group, R 5 is a hydrogen atom, a halogen atom, or a C 1-6 alkyl group, R 7 is a C 1-6 alkyl group, R 8 is a hydrogen atom, and X is a bond or a linker represented by CR 9 R 10 wherein R 9 is a C 1-6 alkyl group and R 10 is a C 1-6 alkyl group.