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  • Title: An NMR study of eremomycin and its derivatives. Full 1H and 13C assignment, motional behavior, dimerization and complexation with Ac-D-Ala-D-Ala.
    Author: Batta G, Sztaricskai F, Kövér KE, Rüdel C, Berdnikova TF.
    Journal: J Antibiot (Tokyo); 1991 Nov; 44(11):1208-21. PubMed ID: 1761417.
    Abstract:
    Complete 1H and 13C NMR assignments are presented for eremomycin (1) and some of its desglycosylated derivatives 2, 3 and compared to the structurally closely related glycopeptide vancomycin. Primary structure and stereochemistry of eremomycin is corroborated by the present high field total correlation spectroscopy, NOESY and heteronuclear multiple-bond correlation NMR methods. A rough motional characterization of the title compound is attempted by 13C-T1 and 13C-[1H] NOE measurements. Dimerization of eremomycin is observed both in DMSO-d6-CCl4 and D2O solutions. Complexation with cell wall analogue dipeptide Ac-D-Ala-D-Ala is also demonstrated.
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