4-methoxyphenyl 2,4,6-tri-O-benzoyl-β-D-glucopyranosyl-(1->3)-2,4,6-tri-O-acetyl-β-D-glucopyranoside 、
2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl-(1->3)-2-O-benzoyl-4,6-O-benzylidene-α-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,
反应 3.0h,
以51%的产率得到4-methoxyphenyl 2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl-(1->3)-2-O-benzoyl-4,6-O-benzylidene-β-D-glucopyranosyl-(1->3)-2,4,6-tri-O-benzoyl-β-D-glucopyranosyl-(1->3)-2,4,6-tri-O-acetyl-β-D-glucopyranoside