Acetic acid (10R,13S)-17-acetoxy-10,13-dimethyl-2,7,8,9,10,11,12,13,14,15-decahydro-1H-cyclopenta[a]phenanthren-3-yl ester 在
三氟甲磺酸N-吡啶鎓 作用下,
以
二氯甲烷 为溶剂,
反应 14.0h,
以51%的产率得到Acetic acid (10R,13S)-6-fluoro-3-hydroxy-10,13-dimethyl-2,3,6,7,8,9,10,11,12,13,14,15-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl ester