2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->4)-2,3-di-O-benzoyl-α-L-fucopyranosyl trichloroacetimidate 、
2,3,4,5-tetra-O-acetyl-1-azido-1-deoxy-D-mannitol 在
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以70%的产率得到2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->4)-2,3-di-O-benzoyl-β-L-fucopyranosyl-(1->6)-2,3,4,5-tetra-O-acetyl-1-deoxy-1-azido-D-mannitol