Two new 22-membered macrolides from Streptomyces sp. HU210

J Antibiot (Tokyo). 2022 Nov;75(11):650-653. doi: 10.1038/s41429-022-00563-1. Epub 2022 Sep 15.

Abstract

Two new 22-membered macrolide metabolites, phthoramycins B (1) and C (2), were isolated from the fermentation broth of Streptomyces sp. HU210. Their structures were elucidated based on extensive spectroscopic techniques including 1D, 2D NMR and HRESIMS data. Compounds 1 and 2 showed moderate cytotoxic activity against human leukemia cell line K562 and lung carcinoma cell line A549.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Bacterial Agents / chemistry
  • Dronabinol / analogs & derivatives
  • Humans
  • Macrolides* / chemistry
  • Magnetic Resonance Spectroscopy
  • Streptomyces* / metabolism

Substances

  • Anti-Bacterial Agents
  • Macrolides
  • Dronabinol
  • HU 211