乙酸酐 、
methyl 8-azido-2,3,4,6-tetra-O-benzyl-7,8-dideoxy-D-glycero-α-D-gluco-octopyranoside 在
硫酸 作用下,
以
乙酸乙酯 为溶剂,
生成 1-O-acetyl 8-azido-2,3,4,6-tetra-O-benzyl-7,8-dideoxy-D-glycero-β-D-gluco-octopyranose 、 1-O-acetyl 8-azido-2,3,4,6-tetra-O-benzyl-7,8-dideoxy-D-glycero-α-D-gluco-octopyranose