(3S,3aS,8S,9S,10aR,12aS,12bR)-9-Azido-3-hydroxy-3a-methyl-1,2,3,3a,4,5,8,9,10,11,12,12b-dodecahydro-10a,12a-epoxybenzo[4,5]cyclohepta[1,2-e]inden-8-yl 2-chloroacetate 在
戴斯-马丁氧化剂 、
potassium carbonate 作用下,
以
二氯甲烷 、
甲醇 为溶剂,
以85%的产率得到(3aS,8S,9S,10aR,12aS,12bR)-9-Azido-8-hydroxy-3a-methyl-1,3a,4,5,8,9,10,11,12,12b-decahydro-10a,12a-epoxybenzo[4,5]cyclohepta[1,2-e]inden-3(2H)-one