Acetic acid (2S,3R,8R,9S,10R,13S,14S,17S)-2,17-diacetoxy-4,4,10,13-tetramethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester 在
四氧化锇 作用下,
以
吡啶 为溶剂,
生成
Acetic acid (2S,3R,5S,6S,8S,9S,10R,13S,14S,17S)-3,17-diacetoxy-5,6-dihydroxy-4,4,10,13-tetramethyl-hexadecahydro-cyclopenta[a]phenanthren-2-yl ester