Acetic acid (3S,5S,10S,17R)-17-ethyl-10,17-dimethyl-2,3,4,5,6,7,8,9,10,11,12,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester 在
吡啶 、
氢氧化钾 、
四氧化锇 作用下,
以
甲醇 为溶剂,
生成
(3S,5S,8R,9S,10S,13S,14S,17R)-17-Ethyl-10,17-dimethyl-tetradecahydro-cyclopenta[a]phenanthrene-3,13,14-triol