Benzoic acid (3S,8R,9S,10S,13S,14S,17S)-17-hydroxy-10-(methoxycarbonylmethoxyimino-methyl)-13-methyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester 在
jones reagent 作用下,
以
丙酮 为溶剂,
反应 0.08h,
以98%的产率得到Benzoic acid (3S,8R,9S,10S,13S,14S)-10-(methoxycarbonylmethoxyimino-methyl)-13-methyl-17-oxo-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester