methyl (4aS,6aR,6bS,8R,8aR,12aS,14aR,14bS)-8-acetyloxy-2,2,6a,6b,9,9,12a-heptamethyl-10,14-dioxo-1,3,4,5,6,7,8,8a,11,12,14a,14b-dodecahydropicene-4a-carboxylate 在
水 、 sodium hydroxide 作用下,
以
乙醇 为溶剂,
反应 0.25h,
以88%的产率得到methyl (4aS,6aR,6bS,8R,8aR,12aS,14aR,14bS)-8-hydroxy-2,2,6a,6b,9,9,12a-heptamethyl-10,14-dioxo-1,3,4,5,6,7,8,8a,11,12,14a,14b-dodecahydropicene-4a-carboxylate