4-methoxyphenyl 2-azido-2-deoxy-4,6-(4-methoxybenzylidene)-D-glucopyranoside 、
乙酸酐 在
吡啶 作用下,
反应 5.0h,
生成 4-methoxyphenyl 3-O-acetyl-2-azido-2-deoxy-4,6-O-(4-methoxybenzylidene)-β-D-glucopyranoside 、
4-methoxyphenyl 3-O-acetyl-2-azido-2-deoxy-4,6-O-(4-methoxybenzylidene)-α-D-glucopyranoside