methyl 4-oxo-4-<2-amino-3-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)oxyphenyl>-2-butenoate 在
sodium ethanolate 作用下,
以
乙醇 为溶剂,
反应 2.0h,
生成 4-[2-Amino-3-((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-phenyl]-4-oxo-butyric acid methyl ester