(1R,3S,4aS,6aS,12aR,12bS)-3,4a-dihydroxy-3-methyl-7,12-dioxo-1-((triisopropylsilyl)oxy)-1,2,3,4,4a,5,6,7,12,12b-decahydro-6a,12a-epoxytetraphen-8-yl acetate 在
氟化氢吡啶 作用下,
以
乙腈 为溶剂,
反应 2.0h,
以98%的产率得到(1R,3S,4aS,6aS,12aR,12bS)-1,3,4a-trihydroxy-3-methyl-7,12-dioxo-1,2,3,4,4a,5,6,7,12,12b-decahydro-6a,12a-epoxytetraphen-8-yl acetate