Acetic acid (3R,5S,8R,9S,10S,13S,14S)-17-[1,5-dimethyl-hex-(E)-ylidene]-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-3-yl ester 在
N-溴代丁二酰亚胺(NBS) 、
四氧化锇 、
过氧化氢苯甲酰 作用下,
以
四氯化碳 为溶剂,
反应 9.0h,
生成 Acetic acid (3R,5S,8R,9S,10S,13S,14S)-17-((Z)-1,5-dimethyl-hex-1-enyl)-16,17-dihydroxy-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-3-yl ester