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  • Title: Synthesis of the beta-1,3-glucan, laminarahexaose: NMR and conformational studies.
    Author: Mo KF, Li H, Mague JT, Ensley HE.
    Journal: Carbohydr Res; 2009 Mar 10; 344(4):439-47. PubMed ID: 19185288.
    Abstract:
    The synthesis of laminarahexaose is described. NMR studies of several of the intermediates leading to the beta-1,3-glucan show anomalously small coupling constants for some of the C-1 hydrogens. An X-ray structure for the protected hexasaccharide shows that the small coupling constants are due to some of the glucopyranose rings adopting a twist-boat conformation. The X-ray studies also explain other unexpected NMR observations.
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