乙酸酐 、 (2S,3R,4S,5R,6R)-2-[(2R,3S,4R,5R,6R)-6-(2,3-Dihydro-indol-1-yl)-4,5-dihydroxy-2-hydroxymethyl-tetrahydro-pyran-3-yloxy]-6-hydroxymethyl-tetrahydro-pyran-3,4,5-triol; compound with oxalic acid 在
吡啶 作用下,
反应 20.0h,
生成
Acetic acid (2R,3R,4S,5R,6R)-4-acetoxy-6-acetoxymethyl-2-(2,3-dihydro-indol-1-yl)-5-((2S,3R,4S,5S,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-3-yl ester