(Z)-(4S,5R,6S,7R)-7-[(2S,3R,4S,5RS)-3-bromo-5-methoxy-2,4-dimethyltetrahydrofuran-2-yl]-1-[(1,1-dimethyl)ethyldimethylsilyloxy]-7-methanesulfonyloxy-5-(4-methoxyphenylmethoxy)-4,6-dimethylhept-2-ene 在
甲基锂 作用下,
以
四氢呋喃 、
乙醚 为溶剂,
反应 1.5h,
生成 (Z)-(1R,2R,3R,4S)-1-[(2S,3R,4S,5S)-3-bromo-5-methoxy-2,4-dimethyltetrahydrofuran-2-yl]-7-[(1,1-dimethyl)ethyldimethylsilyloxy]-3-(4-methoxyphenylmethoxy)-2,4-dimethylhept-5-en-1-ol 、
(Z)-(1R,2R,3R,4S)-1-[(2S,3R,4S,5R)-3-bromo-5-methoxy-2,4-dimethyltetrahydrofuran-2-yl]-7-[(1,1-dimethyl)ethyldimethylsilyloxy]-3-(4-methoxyphenylmethoxy)-2,4-dimethylhept-5-en-1-ol