2-(2-(cyclooct-4-enyloxy)ethoxy)ethyl (methyl 2,3-di-O-benzoyl-β-D-glucopyranosyluronate)-(1->3)-4,6-O-p-methoxybenzylidene-2-deoxy-2-trichloroacetamido-β-D-galactopyranoside 、
methyl (2,3-di-O-benzoyl-4-O-tert-butyldimethylsilyl-β-D-glucopyranosyluronate)-(1->3)-4,6-O-p-methoxybenzylidene-2-deoxy-2-trichloroacetamido-α-D-galactopyranoside trichloroacetimidate 在
三氟甲磺酸三甲基硅酯 、 4 A molecular sieve 作用下,
以
二氯甲烷 为溶剂,
反应 0.5h,
以45%的产率得到C
92H
104Cl
6N
2O
31Si