Patent ID: 8232300

Claim:
A compound represented by the following general formula (I): wherein R 1 represents a hydrogen atom or a C 1-6 alkyl group; A and B independently represent —(CH 2 ) 2 —, —(CH 2 ) 3 —or —(CH 2 ) 4 —; X represents —N(R 2 )—CO—, wherein R 2 represents a hydrogen atom or a C 1-6 alkyl group, —CO—N(R 3 )—, wherein R 3 represents a hydrogen atom or a C 1-6 alkyl group, —C(R 4 )═C(R 5 )—, wherein R 4 and R 5 independently represent a hydrogen atom or a C 1-6 alkyl group, or —N(R 6 )—SO 2 —, wherein R 6 represents a hydrogen atom or a C 1-6 alkyl group; and Ar represents an aryldiyl group or a heteroaryldiyl group, wherein the aryldiyl group and the heteroaryldiyl group may have a substituent, a salt thereof, or an ester thereof.