三氧化硫吡啶 、 Acetic acid 17-((R)-1-hydroxy-ethyl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester 以
氯仿 为溶剂,
反应 2.0h,
以88%的产率得到Acetic acid 10,13-dimethyl-17-((R)-1-sulfooxy-ethyl)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester; compound with pyridine