3β,17β-dihydroxy-15-(hydroxymethylene)androst-5-en-16-one 在
sodium tetrahydroborate 、
丙酮 作用下,
以
甲醇 为溶剂,
反应 16.0h,
以85%的产率得到(2S,4aR,4bS,6aS,11aS,11bR)-2,7,10-Trihydroxy-4a,6a-dimethyl-1,3,4,4a,4b,5,6,6a,7,10,11,11a,11b,12-tetradecahydro-2H-9-oxa-cyclohepta[a]phenanthren-8-one