2-(5-bromomethyl-2,3-dimethoxy-phenyl)-thiophene 、
4-[(tert-butyl-dimethyl-silanyloxy)-cyano-methyl]-benzoic acid methyl ester 在
lithium hexamethyldisilazane 作用下,
以
四氢呋喃 为溶剂,
反应 2.17h,
以70%的产率得到4-[1-(tert-butyl-dimethyl-silanyloxy)-1-cyano-2-(3,4-dimethoxy-5-thiophen-2-yl-phenyl)-ethyl]-benzoic acid methyl ester