Patent ID: 7786165

Claim:
A compound represented by formula (I): wherein: partial structural formula Ar is an optionally substituted cyclic group, provided that the cyclic group is not a 4-piperidinyl group, ring B is an optionally substituted ring, provided that the ring is not a thiazole ring and an oxazole ring, V is a bond; —O—; —CH═N—; or —CH 2 —, —CH 2 CH 2 —, —CH 2 O—, —NH—CH 2 —, —CH 2 —NH— or —CH 2 —NH—CH 2 —, each of which optionally has substituent(s) selected from the group consisting of a C 1-6 alkyl group, a C 7-16 aralkyl group and a C 6-14 aryl group, W is a bond or a C 1-6 alkylene group optionally substituted by C 1-6 alkoxy group(s), R 6 is a hydrogen atom, a halogen atom, a C 1-6 alkyl group or an optionally substituted hydroxy group, R 1 is a hydrogen atom, a halogen atom, a C 1-6 alkyl group or a C 1-6 alkoxy group, R 2 is a hydrogen atom, a C 1-6 alkyl group or an optionally substituted acyl group, R 3 and R 4 are the same or different and each is a hydrogen atom or a halogen atom, and R 5 is an optionally substituted hydroxy group or an optionally substituted amino group, provided that when W is a bond, then ring B is an optionally substituted non-aromatic ring condensed with a benzene ring, not being an optionally substituted tetrahydroquinoline ring, or a salt thereof.