N'-((3S,5S,8R,9S,10S,13R,14S,17S)-17-hydroxy-10,13-dimethyl-3-((triisopropylsilyl)oxy)hexadecahydro-12H-cyclopenta[a]phenanthren-12-ylidene)-4-methylbenzenesulfonohydrazide 在
正丁基锂 作用下,
以
四氢呋喃 、
正己烷 为溶剂,
反应 0.5h,
以63%的产率得到(3S,5S,8S,9S,10S,13S,14S,17S)-10,13-dimethyl-3-tri(propan-2-yl)silyloxy-2,3,4,5,6,7,8,9,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol