Acetic acid (3S,9R,10R,13R,14S,17S)-17-(1-acetoxy-ethyl)-4,4,13,14-tetramethyl-11-oxo-tetradecahydro-cyclopropa[9,10]cyclopenta[a]phenanthren-3-yl ester 在
lithium aluminium tetrahydride 作用下,
以
1,4-二氧六环 为溶剂,
反应 30.0h,
以0.305 g的产率得到(3S,5R,8S,9R,10R,13R,14S,17S)-17-((R)-1-Hydroxy-ethyl)-4,4,13,14-tetramethyl-tetradecahydro-cyclopropa[9,10]cyclopenta[a]phenanthrene-3,11-diol