Patent ID: 7825146

Claim:
A compound represented by the general formula (I): R 6 —R 5 —R 4 —SO 2 —W (I), wherein W is a group represented by the formula: wherein R 1 is NHOH, hydroxy, or lower alkyloxy; R 2 and R 2′ are each independently hydrogen atom, optionally substituted lower alkyl, optionally substituted aryl, optionally substituted aralkyl, optionally substituted heteroaryl, or optionally substituted heteroarylalkyl; R 3 is hydrogen atom, optionally substituted lower alkyl, optionally substituted aryl, optionally substituted aralkyl, optionally substituted heteroaryl, or optionally substituted heteroarylalkyl; R 4 is optionally substituted phenylene or optionally substituted thiophenylene; R 5 is a group represented by the formula: R 6 is optionally substituted phenyl, optionally substituted naphthyl, optionally substituted furanyl, thiophenyl, optionally substituted cyclohexyl, optionally substituted cyclohexenyl, optionally substituted benzoxolanyl, optionally substituted benzodioxolanyl, or optionally substituted benzodioxanyl; its optically active substance, their pharmaceutically acceptable salt, or a solvate thereof.