Acetic acid (5S,8R,9S,10S,12S,13R,14S,17R)-17-isopropyl-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-12-yl ester 在
lithium aluminium tetrahydride 作用下,
以
四氢呋喃 为溶剂,
生成
(5S,8R,9S,10S,12S,13R,14S,17R)-17-Isopropyl-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-12-ol