Structure elucidation of two new unusual monoterpene glycosides from Euphorbia decipiens, by 1D and 2D NMR experiments

Magn Reson Chem. 2011 Oct;49(10):673-7. doi: 10.1002/mrc.2795. Epub 2011 Sep 6.

Abstract

Two new unusual monoterpene glycosides, (Z)-3,6-dimethyl-3-(β-D-O-glucosylmethylene)cyclohept-4-ene-1-one (1) and 3,6-dimethyl-3-(β-D-O-glucosylmethylene)cycloheptanone (2) have been isolated along with five known compounds, 3-hydroxy-4-methoxybenzoic acid, 6,7-dihydroxycoumarin, luteolin, apigenin 5-O-αl-L-rhamnoside, and pinocembrin-7-O-rutinoside from ethyl acetate extract of Euphorbia decipiens. The structures of the isolated compounds were elucidated by extensive 1D- and 2D-NMR, and mass spectroscopic analyses.

Publication types

  • Letter
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cycloheptanes / chemistry*
  • Cycloheptanes / isolation & purification
  • Deuterium / chemistry*
  • Euphorbia / chemistry*
  • Glucosides / chemistry*
  • Glucosides / isolation & purification
  • Glycosides / chemistry*
  • Glycosides / isolation & purification
  • Magnetic Resonance Spectroscopy / standards
  • Molecular Structure
  • Reference Standards
  • Stereoisomerism

Substances

  • Cycloheptanes
  • Glucosides
  • Glycosides
  • Deuterium