[2-(2-bromo-benzyl)-4,5-dimethyl-furan-3-yl]-(3-cyclopentyl-4-hydroxy-phenyl)-methanone 、
4-氯磺酰基-2-羟基苯甲酸 在
4-{4-[2-(2-bromo-benzyl)-4,5-dimethyl-furan-3-carbonyl]-2-cyclopentyl-phenoxysulfonyl}-2-hydroxy-benzoic acid 、
磷酸甲酯 、 silica gel 、
ethyl acetate n-hexane 作用下,
以gave 0.509 g (68%) of the title compound as a brown solid, mp 72-82° C的产率得到4-{4-[2-(2-bromo-benzyl)-4,5-dimethyl-furan-3-carbonyl]-2-cyclopentyl-phenoxysulfonyl}-2-hydroxy-benzoic acid