Acetic acid (3S,8S,9S,10R,11R,13S,14S)-3-(tert-butyl-dimethyl-silanyloxy)-10,13-dimethyl-17-oxo-2,3,4,7,8,9,10,11,12,13,14,17-dodecahydro-1H-cyclopenta[a]phenanthren-11-yl ester 在
吡啶 、
sodium hypochlorite 作用下,
以
乙醇 为溶剂,
生成 Acetic acid (3S,8R,9S,10R,11R,13S,14S,15S,16S)-3-(tert-butyl-dimethyl-silanyloxy)-10,13-dimethyl-17-oxo-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-20-oxa-cyclopropa[15,16]cyclopenta[a]phenanthren-11-yl ester