三氧化硫吡啶 、 5-cholestene-3α,19-diol 3-acetate 以
氯仿 为溶剂,
反应 24.0h,
以58%的产率得到Acetic acid 17-((R)-1,5-dimethyl-hexyl)-13-methyl-10-sulfooxymethyl-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