Abstract
The 1H NMR chemical shift assignments are reported for 2,3-di- or 2,3,6-tri-sulfated glucosamine in a sample of high affinity (for antithrombin III) heparin in three distinct environments. Following treatment in strong basic conditions the disappearance of these signals and the appearance of new signals consistent with the formation of N-sulfo-2,3-aziridine containing aminosugar residues is demonstrated.
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