New thiophenes from Echinops grijisii

J Asian Nat Prod Res. 2002 Sep;4(3):175-8. doi: 10.1080/1028602021000000071.

Abstract

A new thiophene-echinoynethiophene A (11), four new natural products, namely 5,5"-dichloro-alpha-terthiophene (1), 5-chloro-alpha-terthiophene (2), 5-acetyl alpha-terthiophene (3) and 5-carboxyl bithiophene (12), together with seven known thiophenes were isolated and purified from ethanol extract of roots of Echinops grijisii Hance. Their structures were identified on the basis of spectral data.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkynes / chemistry*
  • Alkynes / isolation & purification
  • Echinops Plant*
  • Humans
  • Magnetic Resonance Spectroscopy
  • Phytotherapy*
  • Plant Extracts / chemistry*
  • Thiophenes / chemistry*
  • Thiophenes / isolation & purification

Substances

  • Alkynes
  • Plant Extracts
  • Thiophenes
  • echinoynethiophene A