<4R-<4α,6α(1αS*,2α,6β)>>-<6-<2-(2-Methyl-5-methylene-6-phenyl-3-cyclohexen-1-yl)ethyl>-2,2-dimethyl-1,3-dioxan-4-yl>ethanal 在
sodium chlorite 、
sodium dihydrogenphosphate 、
2-甲基-2-丁烯 作用下,
以
叔丁醇 为溶剂,
以94%的产率得到<4R-<4α,6α(1αS*,2α,6β)>>-<6-<2-(2-Methyl-5-methylene-6-phenyl-3-cyclohexen-1-yl)ethyl>-2,2-dimethyl-1,3-dioxan-4-yl>ethanoic acid