(2E,10Z)-(5S,6R,7R,8R,9R)-6-(tert-Butyl-dimethyl-silanyloxy)-8-hydroxy-11-methanesulfonyloxymethyl-3,5,7,9-tetramethyl-trideca-2,10-dien-12-ynoic acid methyl ester 在
lithium bromide 作用下,
以
二氯甲烷 、
丁酮 为溶剂,
反应 1.0h,
生成
(2E,10Z)-(5S,6R,7R,8R,9R)-11-Bromomethyl-6-(tert-butyl-dimethyl-silanyloxy)-8-hydroxy-3,5,7,9-tetramethyl-trideca-2,10-dien-12-ynoic acid methyl ester