2-(4-bromomethyl-2-thiophen-2-yl-phenoxy)-2-methyl-propionic acid ethyl ester 、
(tert-butyl-dimethyl-silanyloxy)-(2,6-dimethoxy-phenyl)-acetonitrile 在
crude material 、 silica gel 、
乙酸乙酯 、 hexanes 作用下,
以to provide 6.82 g (68%) of pure product as a faint yellow, viscous oil的产率得到