(1S,7S,8R,9S,11S)-4-acetyl-8,11-di(triethylsilyloxy)-6,10-dioxa-3-thiatricyclo[5.3.1.0(3,9)]undecan-3-ium-4-id-5-one 以
乙腈 为溶剂,
反应 2.0h,
以65%的产率得到(1S,4S,7S,9R,10R,11S)-4-acetyl-10,11-di(triethylsilyloxy)-2,8-dioxa-5-thiatricyclo[5.3.1.0(4,9)]undecan-3-one