三氧化硫吡啶 、 Acetic acid (R)-1-(3-hydroxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-ethyl ester 以
氯仿 为溶剂,
反应 24.0h,
以92%的产率得到Acetic acid (R)-1-(10,13-dimethyl-3-sulfooxy-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-ethyl ester; compound with pyridine