Affinoside Le 在
sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
反应 0.5h,
以45 mg的产率得到4-[(2R,3R,5R,10S,13R,14S)-2,14-Dihydroxy-10,13-dimethyl-11-oxo-3-((2S,3S,4R,5R,6R)-3,4,5-trihydroxy-6-methyl-tetrahydro-pyran-2-yloxy)-hexadecahydro-cyclopenta[a]phenanthren-17-yl]-5H-furan-2-one