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  • Title: Synthesis and NMR assignments of galactosylgloboside and its beta-D-GalNAc-(1-->4)-alpha-D-Gal-linked positional isomer in a conjugatable form.
    Author: Zou W, Brisson JR, Larocque S, Gardner RL, Jennings HJ.
    Journal: Carbohydr Res; 1999 Feb 28; 315(3-4):251-61. PubMed ID: 10399298.
    Abstract:
    Two pentasaccharides suitable for conjugation, namely 3-aminopropyl glactosylgloboside and its beta-D-GalNAc-(1-->4)-alpha-D-Gal-linked positional isomer, were synthesized from 3III,4III-di-O-unprotected globotrioside and the trichloroacetimidate of beta-D-Gal-(1-->3)-beta-D-GalNPhth derivative. Glycosylation at both positions led to the formation of beta-D-GalNPhth-(1-->4)-alpha-D-Gal and beta-D-GalNPhth-(1-->3)-alpha-D-Gal-linked products in a ratio of 1:1 without selectivity. Complete NMR spectral assignments are also described.
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