乙酸酐 、
3-O-Acetyl-1,6-anhydro-2-O-benzyl-4-desoxy-4-<1D-(1N,2,4/3)-(2,3,4-tri-O-acetyl-2,3,4-trihydroxy-5-cyclohexen-1-yl)-amino>-β-D-glucopyranose 在
三氟化硼乙醚 作用下,
反应 8.0h,
生成 1,3,6-Tri-O-acetyl-2-O-benzyl-4-desoxy-4-<1D-(1N,2,4/3)-(2,3,4-tri-O-acetyl-2,3,4-trihydroxy-5-cyclohexen-1-yl)amino>-β-D-glucopyranose 、 1,3,6-Tri-O-acetyl-2-O-benzyl-4-desoxy-4-<1D-(1N,2,4/3)-(2,3,4-tri-O-acetyl-2,3,4-trihydroxy-5-cyclohexen-1-yl)amino>-α-D-glucopyranose