(R)-6-[(3S,5S,8R,9S,10S,13S,14S,17S)-10,13-Dimethyl-3-(tetrahydro-pyran-2-yloxy)-hexadecahydro-cyclopenta[a]phenanthren-17-yl]-6-methyl-pyran-2,5-dione 在
铂 氢气 、
4-甲基苯磺酸吡啶 作用下,
以
乙醇 为溶剂,
生成 (5R,6R)-5-Hydroxy-6-((3S,5S,8R,9S,10S,13S,14S,17S)-3-hydroxy-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-6-methyl-tetrahydro-pyran-2-one