在
三氟过氧乙酸 、
三氟乙酸 作用下,
以
氯仿 、
水 为溶剂,
反应 1.5h,
生成 (1R,3aS,3bS,6aS,8S,9R,10aR,10bS,12aS)-1-((1S,2R,3R,4S)-4-Cyclopropyl-2,3-dihydroxy-1-methyl-pentyl)-8,9-dihydroxy-10a,12a-dimethyl-hexadecahydro-5-oxa-benzo[3,4]cyclohepta[1,2-e]inden-6-one 、 (1R,3aS,3bS,6aS,8S,9R,10aR,10bS,12aS)-1-((1S,2R,3R,4S)-4-Cyclopropyl-2,3-dihydroxy-1-methyl-pentyl)-8,9-dihydroxy-10a,12a-dimethyl-hexadecahydro-6-oxa-benzo[3,4]cyclohepta[1,2-e]inden-5-one