2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl-(1->3)-1,2-O-isopropylidene-α-D-allofuranose 、
2,3,4,6-tetra-O-benzoyl-D-glucopyranosyl trichloroacetimidate 在
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
以56%的产率得到2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl-(1->3)-[2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl-(1->6)]-1,2-O-isopropylidene-α-D-allofuranose