Synthesis of sulfated and phosphorylated glycopeptides from the carbohydrate-protein linkage region of proteoglycans

Article abstract of DOI:10.1016/S0008-6215(00)90973-X

The synthesis of the tetrasaccharide dipeptide β-D-GlcpA-(1 → 3)-β-D-Galp4SO₃Na-(1 → 3)-β-D-Galp-(l → 4)-β-D-Xylp-(1 → O)-L-Ser-Gly was achieved by coupling a suitably protected tetrasaccharide trichloroacetunidate, built up from the nonreducin