Acetic acid (1S,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-9-acetoxy-1-acetyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-3a-ylmethyl ester 在
氢氧化钾 作用下,
以
乙醇 为溶剂,
生成 1-((1S,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-9-Hydroxy-3a-hydroxymethyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-1-yl)-ethanone