Patent ID: 7183267

Claim:
A compound represented by formula A(II): wherein R 1 through R 12 are each independently hydrogen, C 1-6 alkyl, C 3-6 cycloalkyl, C 1-3 alkoxy, n-butoxy, i-butoxy, sec-butoxy, R 13 R 14 N— (wherein R 13 and R 14 are each independently hydrogen or C 1-3 alkyl), trifluoromethyl, trifluoromethoxy, difluoromethoxy, fluoro, chloro, bromo, cyano, acetyl, amino, borono, nitro, carboxyl, C 1-6 alkoxycarbonyl, phenyl, phenoxy, phenoxycarbonyl, benzyloxy, hydroxyl, trimethylsilyloxy, diphenyl-t-butylsilyloxy, hydroxymethyl, —SO 3 H, —SO 2 CH 3 , —SO 2 NHR 15 (wherein R 15 is hydrogen or C 1-3 alkyl), or —O(CH 2 ) n OR 16 — (wherein R 16 is hydrogen or C 1-3 alkyl, and n is 1, 2 or 3); or when any two R i s are located at the ortho position to each other, they together form -Z 1 =Z 2 -Z 3 =Z 4 - (wherein Z 1 through Z 4 each independently represents CH or N), —S—CO—O—, —CH═CH—NH—, —CH═CH—S—, —CH═CH—O—, —N═CH—NH—, —CH 2 —N═N—, —N═N—O—, —N═CH—S— or —O—CH 2 CH 2 —O—.