Enceleamycins A-C, Furo-Naphthoquinones from Amycolatopsis sp. MCC0218: Isolation, Structure Elucidation, and Antimicrobial Activity

J Nat Prod. 2022 May 27;85(5):1267-1273. doi: 10.1021/acs.jnatprod.1c01160. Epub 2022 Apr 29.

Abstract

Three novel furo-naphthoquinones, enceleamycins A-C (1-3), and a new N-hydroxypyrazinone acid (4) were identified from the strain Amycolatopsis sp. MCC 0218, isolated from a soil sample collected from the Western Ghats of India. Their chemical structure and absolute and relative configurations were established by 1D and 2D NMR spectroscopy, single-crystal X-ray crystallography, and high-resolution mass spectrometry. Compounds 1 and 3 were active against methicillin-susceptible and -resistant Staphylococcus aureus with MIC values of 2-16 μg/mL.

Publication types

  • Review
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amycolatopsis
  • Anti-Bacterial Agents / chemistry
  • Methicillin-Resistant Staphylococcus aureus*
  • Microbial Sensitivity Tests
  • Molecular Structure
  • Naphthoquinones* / chemistry
  • Staphylococcus aureus

Substances

  • Anti-Bacterial Agents
  • Naphthoquinones