Patent ID: 7649001

Claim:
A compound represented by the general formula: wherein R 7 represents a cyano group, a halogen atom, an acyl group optionally substituted with 1 to 5 halogen atoms, a carboxyl group or a C 1-6 alkyl group substituted with 1 to 5 halogen atoms, R 8 and R 9 are the same or different and each represents (1) a hydrogen atom, (2) a cyano group, (3) a C 1-6 alkyl group optionally substituted with a hydroxy group or a C 1-6 alkoxy group, or (4) an optionally amidated carboxyl group, q represents 0 or 1, Z 1 represents a carbonyl group, a carbon atom substituted with a hydroxyimino group, or a group represented by the formula: wherein R 10 and R 11 are the same or different and each represents (1) a hydrogen atom, (2) a halogen atom, (3) a cyano group, (4) a hydroxy group, (5) a C 1-6 alkyl group optionally substituted with a halogen atom, a hydroxy group or a C 1-6 alkoxy group, (6) a C 1-6 alkoxy group, (7) an amino group optionally substituted with a C 1-6 alkyl group and/or a C 1-6 acyl group or (8) an optionally esterified or amidated carboxyl group, and Z 2 represents a carbonyl group, a carbon atom substituted with a hydroxyimino group, or a group represented by the formula: wherein R 12 and R 13 are the same or different and each represents (1) a hydrogen atom, (2) a halogen atom, (3) a cyano group, (4) a hydroxy group, (5) a C 1-6 alkyl group optionally substituted with a halogen atom, a hydroxy group or a C 1-6 alkoxy group, (6) a C 1-6 alkoxy group, (7) an amino group optionally substituted with a C 1-6 alkyl group and/or a C 1-6 acyl group, or (8) an optionally esterified or amidated carboxyl group, or a salt thereof, except the case that the compound is 1-[4-(1-piperidinyl)-1-naphthyl]ethanone, and 4-(1-piperidinyl)-1-naphthonitrile.