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

Demirkiran O., Topcu G., HUSSAIN J., AHMAD V. U., CHOUDHARY M. I.

MAGNETIC RESONANCE IN CHEMISTRY, vol.49, no.10, pp.673-677, 2011 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 49 Issue: 10
  • Publication Date: 2011
  • Doi Number: 10.1002/mrc.2795
  • Journal Name: MAGNETIC RESONANCE IN CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.673-677
  • Keywords: NMR spectroscopic analysis, Euphorbia decipiens, monoterpene glycosides, phenolics, DITERPENE ESTERS, POLYESTERS
  • Bezmialem Vakıf University Affiliated: Yes

Abstract

Two new unusual monoterpene glycosides, (Z)-3,6-dimethyl-3-(beta-D-O-glucosylmethylene)cyclohept-4-ene-1-one (1) and 3,6-dimethyl-3-(beta-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-alpha l-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. Copyright (C) 2011 John Wiley & Sons, Ltd.