methyl (phenyl 5-acetoxyacetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-2-thio-D-glycero-D-galacto-2-nonulopyranoside)onate 、
3-trifluoroacetamidopropyl O-(6-O-benzyl-β-D-galactopyranosyl)-(1->4)-2-acetamido-3,6-di-O-benzyl-2-deoxy-β-D-glucopyranoside 在
N-碘代丁二酰亚胺 、
三氟甲磺酸 作用下,
以
乙腈 为溶剂,
反应 18.0h,
以40%的产率得到3-trifluoroacetamidopropyl O-[methyl (5-acetoxyacetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-D-glycero-α-D-galacto-2-nonulopyranosyl)onate]-(2->3)-(6-O-benzyl-β-D-galactopyranosyl)-(1->4)-2-acetamido-3,6-di-O-benzyl-2-deoxy-β-D-glucopyranoside