Dactylosporolides: Glycosylated Macrolides from Dactylosporangium fulvum

J Nat Prod. 2022 Dec 23;85(12):2714-2722. doi: 10.1021/acs.jnatprod.2c00484. Epub 2022 Dec 13.

Abstract

A series of novel macrolides were discovered from the culture supernatant of the rare soil actinobacteria Dactylosporangium fulvum and named dactylosporolides A-C. The structure and absolute configuration of these dactylosporolides were defined using a combination of NMR structural elucidation and analysis of the dactylosporolide biosynthetic gene cluster. Together these data revealed dactylosporolides to be composed of a central 22-membered macrolactone with an internal hemiketal ring and a protruding ketide tail that were (poly)glycosylated at two distal parts. While bearing no antibiotic activity, these dactylosporolides displayed activity against Plasmodium falciparum 3D7.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Actinobacteria* / genetics
  • Anti-Bacterial Agents / chemistry
  • Anti-Bacterial Agents / pharmacology
  • Glycosylation
  • Macrolides / chemistry
  • Macrolides / pharmacology
  • Micromonosporaceae*

Substances

  • Macrolides
  • Anti-Bacterial Agents

Supplementary concepts

  • Dactylosporangium fulvum