G毒毛旋花苷 在
lithium hydroxide 作用下,
以
四氢呋喃 为溶剂,
以79%的产率得到(Z)-4-hydroxy-3-((1R,3S,5S,8R,9S,10R,11R,13R,14S,17R)-1,5,11,14-tetrahydroxy-10-(hydroxymethyl)-13-methyl-3-((2R,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyltetrahydro-2H-pyran-2-yloxy)hexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)but-2-enoic acid