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Swalpamycin, a new macrolide antibiotic. II. Structure elucidation

S Chatterjee1, G C Reddy, C M Franco

  • 1Research Centre, Hoechst India Limited, Bombay.

The Journal of Antibiotics
|October 1, 1987
PubMed

Insights

A novel antibiotic, swalpamycin, was discovered from Streptomyces bacteria. This 16-membered macrolide antibiotic contains a unique aglycone called swalpanolide.

Area of Science:

  • Microbiology
  • Natural Product Chemistry
  • Organic Chemistry

Background:

  • The discovery of novel antibiotics is crucial for combating antimicrobial resistance.
  • Streptomyces species are a prolific source of diverse bioactive natural products, including antibiotics.

Purpose of the Study:

  • To isolate and characterize a new antibiotic from Streptomyces sp. Y-84,30967.
  • To elucidate the chemical structure of the novel compound and identify its class.

Main Methods:

  • Isolation of the antibiotic from the culture broth of Streptomyces sp. Y-84,30967.
  • Determination of the molecular formula (C37H56O14) using analytical techniques.
  • Elucidation of the chemical structure through comprehensive analysis of spectral properties (e.g., NMR, Mass Spectrometry).

Main Results:

  • A new antibiotic, designated swalpamycin (1), was successfully isolated.
  • Swalpamycin was identified as a 16-membered neutral macrolide antibiotic.
  • The structure revealed a novel aglycone, named swalpanolide.

Conclusions:

  • Swalpamycin represents a new addition to the class of macrolide antibiotics.
  • The identification of swalpanolide as a novel aglycone expands the structural diversity of macrolides.
  • Further investigation into the biological activity of swalpamycin is warranted.

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