(2α,3α,5aβ,7α,9aα)-(+/-)-methyl 7-bromodecahydro-6,6,9a-trimethyl-2-<(phenylmethoxy)methyl>-3-(phenylthio)-1-benzoxepin-3-carboxylate 、
(2α,3β,5aβ,7α,9aα)-(+/-)-methyl 7-bromodecahydro-6,6,9a-trimethyl-2-<(phenylmethoxy)methyl>-3-(phenylthio)-1-benzoxepin-3-carboxylate 在
间氯过氧苯甲酸 作用下,
以
氘代氯仿 为溶剂,
以65%的产率得到(2α,5aβ,7α,9aα)-(+/-)-methyl 7-bromo-2,5,5a,6,7,8,9,9a-octahydro-6,6,9a-trimethyl-2-<(phenylmethoxy)methyl>-1-benzoxepin-3-carboxylate