(1aR,3aR,4S,8aS,8bR)-1,1-Dimethyl-3a-trimethylsilanyloxy-4-trimethylsilanyloxymethyl-decahydro-cyclopropa[3,4]benzo[1,2]cyclohepten-5-one 在
cerium(III) chloride 、
potassium carbonate 作用下,
以
四氢呋喃 、
甲醇 为溶剂,
生成
(1aR,1bS,4aR,7aR,7bR,9aR)-5-Ethoxy-1,1,5-trimethyl-7b-trimethylsilanyloxy-dodecahydro-6-oxa-cyclopropa[3,4]benzo[1,2-e]azulen-4a-ol