Iakyricidins A-D, Antiproliferative Piericidin Analogues Bearing a Carbonyl Group or Cyclic Skeleton from Streptomyces iakyrus SCSIO NS104

J Org Chem. 2019 Oct 4;84(19):12626-12631. doi: 10.1021/acs.joc.9b01270. Epub 2019 Aug 7.

Abstract

Iakyricidins A-D (1-4), a carbonyl-containing piericidin derivative and three novel piericidin analogues bearing cyclic skeletons, were isolated from the mangrove sediment derived strain Streptomyces iakyrus SCSIO NS104. These structures were established by spectroscopic techniques, Mosher's method, and ECD calculations. Compounds 2-4 represent a novel skeleton of piericidins with branched chain C-C cyclization, and their biosynthetic pathways are proposed. Compound 1, the first natural carbonyl-containing piericidin derivate, exhibited potent antiproliferative activity against ACHN with an IC50 value of 20 nM.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / isolation & purification
  • Antineoplastic Agents / pharmacology*
  • Apoptosis / drug effects
  • Cell Cycle / drug effects
  • Cell Proliferation / drug effects
  • Drug Screening Assays, Antitumor
  • Humans
  • Mitochondria / drug effects
  • Molecular Structure
  • Pyridines / chemistry
  • Pyridines / isolation & purification
  • Pyridines / pharmacology*
  • Streptomyces / chemistry*
  • Tumor Cells, Cultured

Substances

  • Antineoplastic Agents
  • Pyridines
  • piericidin A

Supplementary concepts

  • Streptomyces iakyrus