(Z)-(1R,2R,3R,4S)-1-[(2S,3R,4S,5RS)-3-bromo-5-methoxy-2,4-dimethyltetrahydrofuran-2-yl]-7-[(1,1-dimethyl)ethyldimethylsilyloxy]-3-(4-methoxyphenylmethoxy)-2,4-dimethylhept-5-en-1-ol 、
三乙基硅基三氟甲磺酸酯 以
吡啶 为溶剂,
反应 3.0h,
生成 (Z)-(2S,3R,4S,5S)-3-bromo-2-{(1R,2S,3R,4S)-7-[(1,1-dimethyl)ethyldimethylsilyloxy]-3-(4-methoxyphenylmethoxy)-2,4-dimethyl-1-triethylsilyloxyhept-5-enyl}-5-methoxy-2,4-dimethyltetrahydrofuran 、
(Z)-(2S,3R,4S,5R)-3-bromo-2-{(1R,2S,3R,4S)-7-[(1,1-dimethyl)ethyldimethylsilyloxy]-3-(4-methoxyphenylmethoxy)-2,4-dimethyl-1-triethylsilyloxyhept-5-enyl}-5-methoxy-2,4-dimethyltetrahydrofuran