p-nitrophenyl 2,3-O-isopropylidene-α-D-mannopyranoside 、
2-methyl{3,6-di-O-acetyl-1,2-dideoxy-4-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-α-D-glucopyrano}[2,1-d]oxazoline 在
对甲苯磺酸 作用下,
以
二氯甲烷 为溶剂,
反应 168.0h,
以53%的产率得到p-nitrophenyl 6-O-<2-acetamido-3,6-di-O-acetyl-2-deoxy-4-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-β-D-glucopyranosyl>-2,3-O-isopropylidene-α-D-mannopyranoside