Antibacterial p-terphenyl and α‑pyrone derivates isolated from the marine-derived actinomycete Nocardiopsis sp. HDN154086

J Antibiot (Tokyo). 2024 Apr;77(4):201-205. doi: 10.1038/s41429-023-00698-9. Epub 2024 Jan 25.

Abstract

Assisted by OSMAC strategy, one new p-terphenyl and two new α‑pyrone derivates, namely nocarterphenyl I (1) and nocardiopyrone D-E (2-3), were obtained and characterized from the marine sediment-derived actinomycete Nocardiopsis sp. HDN154086. The structures of these compounds were determined on the basis of MS, NMR spectroscopic data and single-crystal X-ray diffraction. Compound 1 with a rare 2,2'-bithiazole structure among natural products showed promising activity against five bacteria with MIC values ranging from 0.8 to 1.6 μM and 3 exhibited notable antibacterial activity against MRSA compared the positive control ciprofloxacin.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Actinobacteria* / chemistry
  • Anti-Bacterial Agents / chemistry
  • Molecular Structure
  • Nocardiopsis
  • Pyrones / chemistry
  • Terphenyl Compounds* / chemistry

Substances

  • Pyrones
  • Anti-Bacterial Agents
  • Terphenyl Compounds