(4E,9Z,11E,13Z)-(7S,8R)-8-(tert-Butyl-dimethyl-silanyloxy)-15-hydroxy-7-((2S,3R,4R,5S,6S)-3,4,5-trimethoxy-6-methyl-tetrahydro-pyran-2-yloxy)-10-trimethylsilanyl-pentadeca-4,9,11,13-tetraenoic acid 在
4-二甲氨基吡啶 、
叔丁基二甲硅基三氟甲磺酸酯 、 benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate 、
双(三甲基硅烷基)氨基钾 作用下,
以
四氢呋喃 、
六甲基磷酰三胺 、
二氯甲烷 为溶剂,
反应 15.0h,
生成 (2R,3S,3aR,5aS,6R,7S,8aS,8bS)-6-(tert-Butyl-dimethyl-silanyloxy)-7-((2S,3R,4R,5S,6S)-3,4,5-trimethoxy-6-methyl-tetrahydro-pyran-2-yloxy)-5-trimethylsilanyl-3-vinyl-1,2,3,3a,5a,6,7,8,8a,8b-decahydro-as-indacene-2-carboxylic acid methyl ester