Depsitinuside: a new depside galactoside from an endophytic fungus isolated from Viburnum tinus

J Asian Nat Prod Res. 2011 Oct;13(11):1056-60. doi: 10.1080/10286020.2011.606811. Epub 2011 Oct 10.

Abstract

Chromatographic purification of the extract of an endophytic fungal culture yielded depsitinuside (1), a new phenolic ester together with ergosterol (2) and (22E,24S)-24-methyl-5-α-cholesta-7,22-diene-3β,5,6β-triol (3). The structure of 1 was elucidated based on 1D, 2D NMR spectroscopy and high-resolution mass spectrometry, whereas the known compounds (2 and 3) were identified by (1)H NMR, mass spectrometry, and in comparison with the literature values. Compound 1 was evaluated for its enzyme inhibitory potential against acetylcholinesterase, butyrylcholinesterase and lipoxygenase, and was found inactive (10%-40% inhibition at a concentration of 2 mg/ml).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Ascomycota / chemistry*
  • Depsides / chemistry
  • Depsides / isolation & purification*
  • Galactosides / chemistry
  • Galactosides / isolation & purification*
  • Molecular Structure
  • Nuclear Magnetic Resonance, Biomolecular
  • Pakistan
  • Viburnum / microbiology

Substances

  • Depsides
  • Galactosides
  • depsitinuside