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    Novel South African rare actinomycete kribbella speibonae Strain SK5: A prolific producer of hydroxamate siderophores including new dehydroxylated congeners

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    molecules-25-02979-v2.pdf (1.400Mb)
    Date
    2020
    Author
    Beukes, Denzil R.
    Warner, Digby F.
    Jaspars, Marcel
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    Abstract
    In this paper, we report on the chemistry of the rare South African Actinomycete Kribbella speibonae strain SK5, a prolific producer of hydroxamate siderophores and their congeners. Two new analogues, dehydroxylated desferrioxamines, speibonoxamine 1 and desoxy-desferrioxamine D1 2, have been isolated, together with four known hydroxamates, desferrioxamine D1 3, desferrioxamine B 4, desoxy-nocardamine 5 and nocardamine 6, and a diketopiperazine (DKP) 7. The structures of 1–7 were characterized by the analysis of HRESIMS and 1D and 2D NMR data, as well as by comparison with the relevant literature.
    URI
    https://doi.org/10.3390/molecules25132979
    http://hdl.handle.net/10566/5517
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