7-[2-(3,4-Dimethoxy-phenyl)-1-methyl-2-oxo-ethoxy]-2,2-diphenyl-benzo[1,3]dioxole-5-carboxylic acid methyl ester 在
sodium tetrahydroborate 作用下,
以
四氢呋喃 、
甲醇 为溶剂,
以0.9 g的产率得到7-[2-(3,4-Dimethoxy-phenyl)-2-hydroxy-1-methyl-ethoxy]-2,2-diphenyl-benzo[1,3]dioxole-5-carboxylic acid methyl ester