asterosaponin P1 在
吡啶 作用下,
以
1,4-二氧六环 为溶剂,
反应 2.0h,
以20 mg的产率得到(3S,5S,6S,8S,9R,10S,13R,14S,15S,17R)-17-[(1R,4S)-4-((2R,3R,4R,5S)-3-Hydroxy-5-hydroxymethyl-4-methoxy-tetrahydro-furan-2-yloxy)-1,5-dimethyl-hexyl]-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthrene-3,6,8,15-tetraol