9-epi-Viridiol, a novel cytotoxic furanosteroid from soil fungus Trichoderma virens

Nat Prod Res. 2006 Dec;20(14):1321-5. doi: 10.1080/14786410601101969.

Abstract

A novel furanosteroid named 9-epi-viridiol (1), along with viridiol (2) and mevalonic acid (3), was isolated from Trichoderma virens. The structure of 1 was verified by combined spectroscopic data (COSY, HSQC, HMBC and NOESY) to be a C-9 epimer of viridiol. 9-epi-Viridiol exhibited cytotoxicity towards HeLa and KB cells with IC50 values of 19 and 50 microg mL(-1), respectively.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Androstenediols / chemistry*
  • Androstenediols / isolation & purification
  • Androstenediols / pharmacology
  • Antineoplastic Agents / chemistry*
  • Antineoplastic Agents / isolation & purification
  • Antineoplastic Agents / pharmacology
  • Drug Screening Assays, Antitumor
  • Formazans
  • HeLa Cells
  • Humans
  • Inhibitory Concentration 50
  • KB Cells
  • Molecular Structure
  • Nuclear Magnetic Resonance, Biomolecular
  • Optical Rotation
  • Spectrophotometry, Ultraviolet
  • Stereoisomerism
  • Tandem Mass Spectrometry
  • Tetrazolium Salts
  • Thailand
  • Trichoderma / chemistry*

Substances

  • Androstenediols
  • Antineoplastic Agents
  • Formazans
  • Tetrazolium Salts
  • MTT formazan
  • viridiol