(2-benzyl-4,5-dimethyl-thiophen-3-yl)-(3-cyclopentyl-4-hydroxy-phenyl)-methanone 、
4-氯磺酰基-2-羟基苯甲酸 在
4-[4-(2-benzyl-4,5-dimethyl-thiophene-3-carbonyl)-2-cyclopentyl-phenoxysulfonyl]-2-hydroxy-benzoic acid 、
磷酸甲酯 、 silica gel 、
ethyl acetate n-hexane 作用下,
以gave 0.432 g (57%) of the title compound a pale yellow solid, mp 70-77° C的产率得到4-[4-(2-benzyl-4,5-dimethyl-thiophene-3-carbonyl)-2-cyclopentyl-phenoxysulfonyl]-2-hydroxy-benzoic acid