3-(3β-Hydroxy-17β-acetoxy-androst-5-en-17α-yl)-propionaldehyd-dimethylacetal 在
lithium aluminium tetrahydride 作用下,
生成 (3S,10R,13S,17R)-17-(3,3-dimethoxypropyl)-10,13-dimethyl-1,2,3,4,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthrene-3,17-diol