Acetic acid (3S,8R,9S,10R,13S,14S)-17-((E)-(S)-5-hydroxy-1,5-dimethyl-hex-2-enyl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl ester 在
palladium on activated charcoal
氢气 作用下,
以
乙醇 为溶剂,
以95%的产率得到[(3S,8S,9S,10R,13R,14S,17R)-17-[(2S)-6-hydroxy-6-methylheptan-2-yl]-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl] acetate