4-methylphenyl 6-O-(methyl 4,7,8,9-tetra-O-acetyl-3,5-dideoxy-5-phthalimido-D-glycero-α-D-galacto-2-nonulopyranosylonate)-2,3-di-O-benzoyl-4-benzyl-1-thio-α-D-galactopyranoside 、
Methyl 2-azido-3,6-di-O-benzyl-2-deoxy-α-D-glucopyranoside 在
N-碘代丁二酰亚胺 、
三氟甲磺酸三甲基硅酯 作用下,
反应 2.5h,
以64%的产率得到methyl (methyl 4,7,8,9-tetra-O-acetyl-3,5-dideoxy-5-phthalimido-D-glycero-α-D-galacto-2-nonulopyranosylonate)-(2→6)-(2,3-di-O-benzoyl-4-benzyl-β-D-galactopyranosyl)-(1→4)-2-azido-3,6-di-O-benzyl-2-deoxy-α-D-glucopyranoside