乙酸酐 、 4,6-di-O-acetyl-3-azido-2,3-dideoxy-D-erythro-hexopyranose 在
吡啶 作用下,
反应 0.5h,
生成 1,4,6-tri-O-acetyl-3-azido-2,3-dideoxy-α-D-arabino-hexopyranose 、 1,4,6-tri-O-acetyl-3-azido-2,3-dideoxy-β-D-arabino-hexopyranose 、 1,4,6-tri-O-acetyl-3-azido-2,3-dideoxy-α-D-ribo-hexopyranose 、
1,4,6-tri-O-acetyl-3-azido-2,3-dideoxy-β-D-ribo-hexopyranose