This work describes the synthesis of a series of sialylmimetic neoglycoconjugates represented by 1, 4-disubstituted 1, 2, 3-triazole-sialic acid derivatives containing galactose modified at either C-1 or C-6 positions, glucose or gulose at C-3 position, and by the amino acid derivative 1, 2, 3-triazole fused threonine-3-O-galactose as potential TcTS inhibitors and anti-trypanosomal agents. This series was obtained by Cu (I)-catalysed azide–alkyne ...