Acetic acid (3S,8S,9S,10R,11S,13S,14S,17S)-11,17-dihydroxy-10,13-dimethyl-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester 在
sodium dichromate 、
溶剂黄146 作用下,
生成
Acetic acid (3S,8S,9S,10R,11S,13S,14S)-11-hydroxy-10,13-dimethyl-17-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester