4-methoxyphenyl 2-O-benzoyl-4,6-O-di-tert-butylsilylene-β-D-galactopyranoside 、
O-(methyl 2,3-di-O-benzoyl-4-O-levulinoyl-β-D-glucopyranosyluronate)-(1->3)-2-O-benzoyl-4,6-di-O-chloroacetyl-1-O-trichloroacetimidoyl-β-D-galactopyranose 在
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
反应 0.67h,
以61%的产率得到4-methoxyphenyl O-(methyl 2,3-di-O-benzoyl-4-O-levulinoyl-β-D-glucopyranosyluronate)-(1->3)-(2-O-benzoyl-4,6-di-O-chloroacetyl-β-D-galactopyranosyl)-(1->3)-2-O-benzoyl-4,6-O-di-tert-butylsilylene-β-D-galactopyranoside