(8S,9S,10R,13R,14S,17R)-17-((1R,4S)-4-Hydroxy-1,5-dimethyl-hexyl)-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-cyclopenta[a]phenanthren-3-one 在
sodium tetrahydroborate 、
potassium tert-butylate 作用下,
以
甲醇 、
叔丁醇 为溶剂,
生成
Cholesta-1,5-dien-3β,24(S)-diol