摘要:
The pentasaccharide Galbeta1-4GlcNAcbeta1-6(Galbeta1-4GlcNAcbeta1-3)GalNAcalphaOR, its partial trisaccharides Galbeta1-4GlcNAcbeta1-3GalNAcalphaOR and Galbeta1-4GlcNAcbeta1-6GalNAcalphaOR and the tetrasaccharide Galbeta1-4GlcNAcbeta1-6(Galbeta1-3)GalNAcalphaOR were synthesised as spacered derivatives (R = CH2CH2CH2NH2) using a Troc-protected lactosamine glycosyl donor at the key stage.