Angucyclines containing β-ᴅ-glucuronic acid from Streptomyces sp. KCB15JA151

Bioorg Med Chem Lett. 2021 Sep 15:48:128237. doi: 10.1016/j.bmcl.2021.128237. Epub 2021 Jul 1.

Abstract

Two angucyclines, pseudonocardones D (1) and E (2), were isolated from Streptomyces sp. KCB15JA151. The planar structure was elucidated by comprehensive spectroscopic analysis. The absolute configuration of the sugar unit was determined based on the basis of coupling constants, ROESY, chemical derivatization and HPLC analysis. The biological activities of compounds 1 and 2 were examined by performing a computational target prediction, which led to tests of the antiestrogenic activity. The result suggested that compound 1 might be an ERα antagonist.

Keywords: Angucycline; Streptomyces sp.; β-ᴅ-Glucuronic acid.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Dose-Response Relationship, Drug
  • Estrogen Receptor alpha / antagonists & inhibitors*
  • Estrogen Receptor alpha / metabolism
  • Glucuronic Acid / chemistry
  • Glucuronic Acid / isolation & purification
  • Glucuronic Acid / pharmacology*
  • Humans
  • Molecular Structure
  • Streptomyces / chemistry*
  • Structure-Activity Relationship

Substances

  • Estrogen Receptor alpha
  • Glucuronic Acid