(R)-2-Bromo-2-[(4S,6S)-6-[(Z)-(3S,4S,5S)-4-(tert-butyl-dimethyl-silanyloxy)-6-(tert-butyl-diphenyl-silanyloxy)-3,5-dimethyl-hex-1-enyl]-2-(4-methoxy-phenyl)-[1,3]dioxan-4-yl]-propionic acid ethyl ester 在
三乙基硼 、
三正丁基氢锡 作用下,
以86%的产率得到2-[(4S,6S)-6-[(Z)-(3S,4S,5S)-4-(tert-Butyl-dimethyl-silanyloxy)-6-(tert-butyl-diphenyl-silanyloxy)-3,5-dimethyl-hex-1-enyl]-2-(4-methoxy-phenyl)-[1,3]dioxan-4-yl]-propionic acid ethyl ester