5-azidopentyl-O-3,6-di-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranoside 、
methyl 5-acetamido-7,8,9-tri-O-acetyl-3,5-dideoxy-D-glycero-α-D-galacto-non-2-ulopyranosylonate-(2->6)-p-tolyl-2,3-di-O-benzoyl-1-thio-β-D-galactopyranoside 在
N-碘代丁二酰亚胺 、
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
以80%的产率得到5-azido-pentyl-1-O-(2-N-phthalimido-3,6-dibenzyl-4-O-(2,3-dibenzoyl-6-O-(methyl 5-acetamido-7,8,9-tri-O-acetyl-5-N,4-O-carbonyl-3,5-dideoxy-D-glycero-α-D-galacto-2-nonulopyranosylonate)-β-D-galactopyranosyl)-β-D-glucopyranosyl)onate