5,7-dihydroxy-3',4'-dimethoxyflavone 7-O-rhamnosyl(1->2)glucoside 、
乙酸酐 在
吡啶 作用下,
生成 (2S,3R,4R,5S,6S)-2-(((2S,3R,4S,5R,6R)-4,5-diacetoxy-2-((5-acetoxy-2-(3,4-dimethoxyphenyl)-4-oxo-4H-chromen-7-yl)oxy)-6-(acetoxymethyl)tetrahydro-2H-pyran-3-yl)oxy)-6-methyltetrahydro-2H-pyran-3,4,5-triyl triacetate