Venturicidin C, a new 20-membered macrolide produced by Streptomyces sp. TS-2-2

J Antibiot (Tokyo). 2014 Mar;67(3):223-30. doi: 10.1038/ja.2013.113. Epub 2013 Nov 13.

Abstract

Venturicidin C (1), a new 20-membered macrolide along with the known venturicidins A (2) and B (3) were isolated from the crude extract of the Appalachian bacterial strain Streptomyces sp. TS-2-2. Additionally, nine other known compounds namely nocardamine, dehydroxynocardamine, desmethylenylnocardamine, ferrioxamine E, adenosine, riboflavin, cyclo(D)-trans-4-OH-Pro-(D)-Phe, cyclo(D)-Pro-(D)-Phe and N-(2-phenylethyl)-acetamide were also isolated and identified. The structure of the new macrolide 1 was elucidated by the cumulative analyses of NMR spectroscopy and HR-MS data. Complete NMR assignments for the known venturicidins A (2) and B (3) are also provided, for the first time, in this report. Venturicidins A-C did not inhibit the proliferation of A549 lung cancer cell line but all displayed potent antifungal activity.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Antifungal Agents / chemistry
  • Antifungal Agents / isolation & purification
  • Antifungal Agents / pharmacology*
  • Cell Line, Tumor
  • Humans
  • Lung Neoplasms / drug therapy
  • Lung Neoplasms / pathology
  • Macrolides / chemistry
  • Macrolides / isolation & purification
  • Macrolides / pharmacology*
  • Magnetic Resonance Spectroscopy
  • Mass Spectrometry / methods
  • Peptides, Cyclic / chemistry
  • Peptides, Cyclic / isolation & purification
  • Peptides, Cyclic / pharmacology*
  • Streptomyces / metabolism*

Substances

  • Antifungal Agents
  • Macrolides
  • Peptides, Cyclic
  • venturamide A
  • venturamide B
  • venturicidin C