Patent ID: 6916822

Claim:
A compound represented by the following formula (I) or a salt thereof: wherein, X represents the following group (II), (III), (IV), (V), or (VI), “A” represents a saturated or unsaturated 6-membered carbocyclic group selected from the group consisting of benzene and cyclcohexane, “B” represents —CH 2 — or a single bond, “n” represents 0, 1 or 2, R 1 represents a hydrogen atom, a halogen atom, a lower alkyl group which may be substituted, a lower alkenyl group which may be substituted, a lower alkoxy group which may be substituted, a hydroxy group, a cyano group, an amino group, a N,N-di(lower alkyl)amino group, a N,N-di(substituted lower alkyl)amino group, a nitro group, a carbamoyl group, a N,N-di(lower alkyl)carbamoyl group, a N,N-di(substituted lower alkyl)carbamoyl group, a carboxyl group, a lower alkoxycarbonyl group which may be substituted or a lower alkylcarbonyl group which may be substituted, R 2 , R 3 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 , and R 14 independently represent a hydrogen atom, a lower alkyl group which may be substituted or a lower alkenyl group which may be substituted, R 4 represents a hydrogen atom, a lower alkyl group which may be substituted, a lower alkenyl group which may be substituted, or a lower alkoxy group which may be substituted, R 5 and R 6 bind to each other to represent the following group (VIII) or (XVI): wherein, R 17 or R 26 represents a hydrogen atom, a lower alkyl group which may be substituted, or a lower alkenyl group which may be substituted, and R 18 or R 27 represents a hydrogen atom, a halogen atom, a lower alkyl group which may be substituted, a lower alkenyl group which may be substituted, a lower alkoxy group which may be substituted, a hydroxy group, a cyano group, an amino group, a N,N-di(lower alkyl)amino group, a N,N-di(substituted lower alkyl)amino group, a nitro group, a carbamoyl group, a N,N-di(lower alkyl)carbamoyl group, a N,N-di(substituted lower alkyl)carbamoyl group, a carboxyl group, a lower alkoxycarbonyl group which may be substituted, or a lower alkylcarbonyl group which may be substituted.