(S)-4-[(5R,6S,7R,8R,10S)-10-Benzyloxy-7-bromo-6-(tert-butyl-dimethyl-silanyloxy)-2,2-dimethyl-1,3-dioxa-spiro[4.5]dec-8-yl]-[1,3]dioxolan-2-one 在
potassium carbonate 作用下,
以
甲醇 为溶剂,
反应 1.0h,
生成
((5R,6S,7R,8R,10S)-10-Benzyloxy-7-bromo-2,2-dimethyl-8-(R)-oxiranyl-1,3-dioxa-spiro[4.5]dec-6-yloxy)-tert-butyl-dimethyl-silane