在
水 、
potassium carbonate 作用下,
以
甲醇 为溶剂,
反应 3.0h,
以49%的产率得到4-(3a,6-dimethyl-5-oxo-9b-((triethylsilyl)oxy)-7-(((2R,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-2,3,3a,4,5,7,8,9,9a,9b-decahydro-1H-cyclopenta[a]naphthalen-3-yl)furan-2(5H)-one