Marine Drugs (Jun 2024)

Chrysomycins, Anti-Tuberculosis C-Glycoside Polyketides from <i>Streptomyces</i> sp. MS751

  • Jiaming Yu,
  • Hui Guo,
  • Jing Zhang,
  • Jiansen Hu,
  • Hongtao He,
  • Caixia Chen,
  • Na Yang,
  • Fan Yang,
  • Zexu Lin,
  • Huanqin Dai,
  • Liming Ouyang,
  • Cuihua Liu,
  • Xiaoguang Lei,
  • Lixin Zhang,
  • Guoliang Zhu,
  • Fuhang Song

DOI
https://doi.org/10.3390/md22060259
Journal volume & issue
Vol. 22, no. 6
p. 259

Abstract

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A new dimeric C-glycoside polyketide chrysomycin F (1), along with four new monomeric compounds, chrysomycins G (2), H (3), I (4), J (5), as well as three known analogues, chrysomycins A (6), B (7), and C (8), were isolated and characterised from a strain of Streptomyces sp. obtained from a sediment sample collected from the South China Sea. Their structures were determined by detailed spectroscopic analysis. Chrysomycin F contains two diastereomers, whose structures were further elucidated by a biomimetic [2 + 2] photodimerisation of chrysomycin A. Chrysomycins B and C showed potent anti-tuberculosis activity against both wild-type Mycobacterium tuberculosis and a number of clinically isolated MDR M. tuberculosis strains.

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