Patent ID: 7166617

Claim:
A compound represented by the following formula (I) or a salt thereof, or a hydrate or a solvate thereof: wherein: X represents an alkyl group, a cycloalkyl-substituted alkyl group, an aryl-substituted alkyl group, an aryl-substituted alkenyl group, an aryl-substitutes alkynyl group, a monocyclic or polycyclic cycloalkyl group which may be substituted with an alkyl group, an aryl group, a heterocyclic group, or a substituted or unsubstituted amino group; Q represents a group represented by —CO—, —O—, —S—, —CH(OR 7 )—, —C(═CH 2 )— or —C(═NR 8 )— wherein R 7 represents a hydrogen atom, an alkyl group, a hydroxyalkyl group, or an acyl group, and R 8 represents a hydroxyl group, an alkoxyl group, an aralkyloxy group, an acyloxy group, an acylamino group, or an alkoxycarbonyl amino group; n represents an integer of from 0 to 5; R 1 and R 2 each independently represent a hydrogen atom or an alkyl group; B represents the following groups: wherein R 3 , R 4 , R 5 and R 6 each independently represent a substituent selected from the group consisting of a hydrogen atom, a halogen atom, a nitro group, an alkyl group, a halogenated alkyl group, a hydroxyl group, an alkoxyl group, a halogenated alkoxyl group, and a cyano group; m represents 1 or 2.