2'-propyl-16α,17α-cyclobutenopregn-5-en-3β-ol-20-one acetate 在
氢氧化钾 作用下,
反应 2.0h,
以89%的产率得到1-((2S,4aR,4bS,6aS,6bR,8aS,9aS,9bR)-2-Hydroxy-4a,6a-dimethyl-7-propyl-1,2,3,4,4a,4b,5,6,6a,8a,9,9a,9b,10-tetradecahydro-cyclobuta[3,4]cyclopenta[1,2-a]phenanthren-6b-yl)-ethanone