Acetic acid (3S,8S,9S,10R,13S,14S,17S)-17-{(S)-1-[2-(4-methoxy-phenyl)-ethylamino]-ethyl}-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester 在
氢氧化钾 作用下,
以
甲醇 为溶剂,
反应 0.42h,
以15%的产率得到(3S,8S,9S,10R,13S,14S,17S)-17-{(S)-1-[2-(4-Methoxy-phenyl)-ethylamino]-ethyl}-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol