乙酸酐 、
2-((2R,3S,4S,5R,6S)-3,4,5-Trihydroxy-6-methoxy-tetrahydro-pyran-2-ylmethoxymethyl)-isoindole-1,3-dione 在
吡啶 作用下,
生成 Acetic acid (2R,3R,4S,5R,6S)-3,5-diacetoxy-2-(1,3-dioxo-1,3-dihydro-isoindol-2-ylmethoxymethyl)-6-methoxy-tetrahydro-pyran-4-yl ester