methyl (1S,2S,3R,3aR,5aR,6aR,7S,10aS,10bR,10cR)-1-[tert-butyl(dimethyl)silyl]oxy-7-[(3S)-3-hydroxypent-4-enyl]-9-iodo-2,5,7-trimethyl-3-tri(propan-2-yl)silyloxy-1,2,3,3a,5a,6,6a,10a,10b,10c-decahydro-as-indaceno[2,1-c]pyran-10-carboxylate 在
tris-(dibenzylideneacetone)dipalladium(0) 、 1,1'-bis(diphenylphosphino)ferrocene 、
三乙胺 、
水 、
氯化铵 作用下,
以
甲苯 为溶剂,
反应 1.0h,
以73%的产率得到methyl (1S,2R,4R,7R,8R,9S,10S,11R,12R,13S,17S)-10-[tert-butyl(dimethyl)silyl]oxy-17-hydroxy-1,5,9-trimethyl-16-methylidene-8-tri(propan-2-yl)silyloxy-20-oxapentacyclo[13.4.1.02,13.04,12.07,11]icosa-5,14-diene-14-carboxylate