Synthesis of a tetrasaccharide acceptor for use in the assay of UDP-GlcpNAc:β-D-Galp-(1 → 4)-β-D-GlcpNAc (GlcNAc to Gal) β(1 → 3)-N-acetylglucosaminyltransferase activity and the pentasaccharide product that would be formed by its enzymic glycosylation

Article abstract of DOI:10.1016/0008-6215(92)84095-A

The tetrasaccharide β-D-Galp-(1 → 4)-β-D-GlcpNAc-(1 → 6)-α-D-Manp-(1 → 6)-β-D-Manp-OR (2) and the pentasaccharide β-D-GlcpNAc-(1 → 3)-β-D-Galp-(1 → 4)-β-D-GlcpNAc-(1 → 6)-α-D-Manp-(1 → 6)-β-D-Manp-OR (3), where R = (CH₂)₈COOMe, have