(1S,2R,4aR,4bR,7S,9aS,10S,10aR)-10-(methoxycarbonyl)-1-methyl-8-methylene-13-oxo-1,2,5,6,8,9,10,10a-octahydro-4a,1-(epoxymethano)-7,9a-methanobenzo[a]azulene-2,7(4bH)-diyl diacetate 在
间氯过氧苯甲酸 作用下,
以
氯仿 为溶剂,
反应 24.0h,
以1.86 g的产率得到methyl (1R,2R,5S,6S,8R,9S,10R,11S,12S)-5,12-diacetyloxy-11-methyl-16-oxospiro[15-oxapentacyclo[9.3.2.15,8.01,10.02,8]heptadec-13-ene-6,2'-oxirane]-9-carboxylate