Patent ID: 8592454

Claim:
A compound represented by the formula wherein: ring A is a piperidine ring or a pyrrolidine ring and each straight line is a single bond and is a single bond; ring B is an aromatic ring optionally having substituent(s); ring D is an aromatic ring optionally having substituent(s), wherein 6-quinolyl is excluded; L is a group represented by the formula R 2 , R 3 , R 4a and R 4b are each independently a hydrogen atom, an optionally halogenated C 1-6 alkyl group or an optionally halogenated C 3-6 cycloalkyl group, or R 2 and R 3 are optionally bonded via an alkylene chain or an alkenylene chain, or R 4a and R 4b are optionally bonded via an alkylene chain or an alkenylene chain; R 1 is a hydrogen atom or a substituent; m and n are each independently an integer of 0 to 3; and m+n is an integer of 2 to 3; provided that when L is a group represented by the formula wherein each of R 4a and R 4b is as defined above, then ring D is an aromatic ring having substituent(s); excluding: N-[4-(biphenyl-4-yl)piperidin-3-yl]-N′-(naphthalen-2-yl)urea; or a salt thereof.