[(2S,3S,4R,5R,6R)-6-[[(1R,2S,3R,5R,6R,9S,10R,13S,15S,17R)-3-acetyloxy-9,13-dihydroxy-5,19,19-trimethyl-6-(5-oxo-2H-furan-3-yl)-18,20-dioxapentacyclo[11.8.0.01,17.02,10.05,9]henicosan-15-yl]oxy]-4,5-dibenzoyloxy-2-methyloxan-3-yl] benzoate 在
盐酸 作用下,
以
甲醇 为溶剂,
反应 2.0h,
以92%的产率得到(2R,3R,4R,5S,6S)-2-(((1R,3S,5S,8R,9S,10R,11R,13R,14S,17R)-11-acetoxy-1,5,14-trihydroxy-10-(hydroxymethyl)-13-methyl-17-(5-oxo-2,5-dihydrofuran-3-yl)hexadecahydro-1H-cyclopenta[a]phenanthren-3-yl)oxy)-6-methyltetrahydro-2H-pyran-3,4,5-triyl tribenzoate