(1S,6R,10S)-methyl 9-methyl-2,5-dioxo-10-(2',3',4',6'-tetra-O-acetyl-β-D-glucopyranosyloxy)-8-trimethylsiloxybicyclo<4.4.0>deca-3,8-diene-1-carboxylate 在
盐酸 作用下,
以
氯仿 为溶剂,
反应 0.25h,
以43%的产率得到(1S,6R,9R,10S)-methyl 9-methyl-2,5,8-trioxo-10-(2',3',4',6'-tetra-O-acetyl-β-D-glucopyranosyloxy)bicyclo<4.4.0>dec-3-ene-1-carboxylate