cheliferoside LI 在
吡啶 作用下,
以
1,4-二氧六环 为溶剂,
反应 2.0h,
以2 mg的产率得到1-[(3S,5R,6S,8S,10S,13S,14S,17S)-3-Hydroxy-10,13-dimethyl-6-((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-methyl-tetrahydro-pyran-2-yloxy)-2,3,4,5,6,7,8,10,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]-ethanone