Abstract New bifunctional reagents, 2-amino-6-carboxyethylpyridine and 2-amino-6- cyanoethylpyridine, were designed and synthesized in order to provide a novel procedure for preparation of neoglycoconjugates from fluorescence-labeled and purified sugar chains. Labeling of model sugar chains with these reagents was effected by reductive amination using BH3. Me2NH to give corresponding 6-carboxyethylpyridylaminated (CEPA-) and 6- ...