2,3,5,6-tetramethylidenebicyclo<2.2.1>heptane 、
rel-(1R,4S,6R,6aR,8S,10R,11aS,12S,14R,17S,19R,19aR,21S,23R,24aS,25S)-1,4:6,25:8,23:10,21:12,19:14,17-hexaepoxy-1,4,6,6a,7,8,10,11,11a,12,14,17,19,19a,20,21,22,24,24a,25-eicosahydroundecacene 以
甲苯 为溶剂,
反应 12.0h,
以86%的产率得到rel-(1R,4S,4aS,6s,7aR,8R,10S,10aS,12R,14S,15aR,16R,19S,19aS,21R,23S,24aS,25R,27S,27aS,29r,30aR)-1,4:8,27:10,25:12,23:14,21:16,19-hexaepoxy-6,29-methylene-1,4,4a,5,6,7,7a,8,10,10a,11,12,14,15,15a,16,19,19a,20,21,23,24,24a,25,27,27a,28,29,30,30a-triaco...