2,2-Dimethyl-propionic acid (3S,3aS,5aS,6aS,9R,9aS,10aR,10bS)-9-acetoxy-3a-methyl-6-methylene-hexadecahydro-dicyclopenta[a,g]naphthalen-3-yl ester 在
chromium(VI) oxide 、
氢氧化钾 、
硫酸 作用下,
以
甲醇 为溶剂,
生成 2,2-Dimethyl-propionic acid (3S,3aS,5aS,6aS,9aS,10aR,10bS)-3a-methyl-6-methylene-9-oxo-hexadecahydro-dicyclopenta[a,g]naphthalen-3-yl ester