(3-bromo-2,6-dimethoxy-phenyl)-(tert-butyl-dimethyl-silanyloxy)-acetonitrile 、
ethyl 2-(4-(bromomethyl)phenoxy)-2-methylpropanoate 在
lithium hexamethyldisilazane 作用下,
以
四氢呋喃 为溶剂,
反应 9.53h,
以29%的产率得到2-{4-[2-(3-bromo-2,6-dimethoxy-phenyl)-2-(tert-butyl-dimethyl-silanyloxy)-2-cyano-ethyl]-phenoxy}-2-methyl-propionic acid ethyl ester