2-(Trimethylsilyl)ethyl (1S,7R,7aS)-5-<<(1S,4S)-3,3-Dimethyl-2-oxo-7-oxabicyclo<2.2.1>heptan-1-yl>methyl>-2,6,7,7a-tetrahydro-1-<(R)-2-methoxycarbonyl-1-methylethyl>-1,7a-dimethyl-7-<2-(trimethylsilyl)ethoxymethoxy>-1H-indene-4-carboxylate 在
lithium hydroxide 、
四丁基氢氧化铵 作用下,
以
四氢呋喃 为溶剂,
反应 30.0h,
以92%的产率得到2-(Trimethylsilyl)ethyl (1S,7R,7aS)-5-<<(1S,4S)-3,3-Dimethyl-2-oxo-7-oxabicyclo<2.2.1>heptan-1-yl>methyl>-2,6,7,7a-tetrahydro-1-<(R)-2-methoxycarbonyl-1-methylethyl>-1,7a-dimethyl-7-<2-(trimethylsilyl)ethoxymethoxy>-1H-indene-4-carboxylate