[(2R,4R,6S)-1-acetyloxy-6-[(3S,5S,8R,9S,10S,12R,13S,14S)-3,12-diacetyloxy-10,13-dimethyl-16-trimethylsilyloxy-2,3,4,5,6,7,8,9,11,12,14,15-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]-2-methyl-5-oxo-2-(2,2,2-trifluoroacetyl)oxyheptan-4-yl] benzoate 在
Oxone 、
碳酸氢钠 作用下,
以
水 、
乙腈 为溶剂,
反应 1.0h,
以57 mg的产率得到[(2R,4R,6S)-1-acetyloxy-6-[(3S,5S,8R,9S,10S,12R,13R,14S,17S)-3,12-diacetyloxy-17-hydroxy-10,13-dimethyl-16-oxo-2,3,4,5,6,7,8,9,11,12,14,15-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]-2-methyl-5-oxo-2-(2,2,2-trifluoroacetyl)oxyheptan-4-yl] benzoate