(4aS,5R,8aR)-5-(2-Benzyloxy-ethyl)-6-methyl-1,4-dioxo-1,3,4,5,8,8a-hexahydro-2H-naphthalene-4a-carboxylic acid methyl ester 在
间氯过氧苯甲酸 作用下,
以
二氯甲烷 为溶剂,
以2.51 g的产率得到4aβ-(carbomethoxy)-6-methyl-6,7-epoxy-5α-<2-(benzyloxy)ethyl>-2,3,4a,5,8,8aα-hexahydronaphthalene-1,4-dione