[(2Z,4R,8R,9S,11R)-11-methyl-7-methylidene-6,12-dioxo-2-[tri(propan-2-yl)silyloxymethyl]-5,14-dioxatricyclo[9.2.1.04,8]tetradeca-1(13),2-dien-9-yl] 2-methylprop-2-enoate 在
[Ph
3PCuH]6 作用下,
以
甲苯 为溶剂,
反应 2.0h,
以46%的产率得到(2aS,3R,4aS,6R,11aR,11bR)-3-hydroxy-3-isopropenyl-2a,6-dimethyl-10-{[(triisopropylsilyl)oxy]methyl}-2a,3,5,6,11a,11b-hexahydro-2H-6,9-epoxy-1,4-dioxacyclodeca[cd]pentalene-2,7(4aH)-dione