(3E,3aS,4R,6S,7S,7aR) <2-(trimethylsilyl)ethyl>-3a-hydroxy-3-iodomethylidene-6,7-isopropylidenedioxy-6-methyl-octahydrobenzofuran-4-carboxylate 、 <2R(2E,6E)4S,5S,4S,6S,8R,9S> 2-<(4-hydroxy-3,5-dimethyl-7-tributylstannyl)hepta-2,6-dienyl>-8-isopropyl-9-methyl-1,7-dioxaspiro<5.5>undecan-4-ol 在
双(乙腈)氯化钯(II) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 4.0h,
以40%的产率得到<3E<2E,6E,4S,5S,(2R,4S,6S,8R,9S)>,3aS,4R,6S,7S,7aR> <2-(trimethylsilyl)ethyl> 3a-hydroxy-3-<5-hydroxy-8-<4-hydroxy-8-isopropyl-9-methyl-1,7-dioxaspiro<5.5>undecan-2-yl>-4,6-dimethylocta-2,6-dienylidene>-6,7-isopropylidenedioxy-6-methyl-octahydrobenzo...