2-(2-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyloxy)ethoxy)ethanaminium trifluoroacetate 、
(2,2'-bipyridine)-4,4'-dicarboxylic acid bis(N-hydroxysuccinimide) ester 在
三乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以61%的产率得到N,N'-bis(2-{2-[(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)oxy]ethoxy}ethyl)-2,2'-bipyridine-4,4'-dicarboxamide