Complete 1H and 13C assignments of 8-C-beta-D-[2-O-(E)-p-coumaroyl]glucopyranosyl-2-(2-hydroxy)propyl-7-methoxy-5-methylchromone

Magn Reson Chem. 2004 Jun;42(6):564-6. doi: 10.1002/mrc.1377.

Abstract

1H and 13C NMR spectra of 8-C-beta-D-[2-O-(E)-p-coumaroyl] glucopyranosyl-2-(2-hydroxy)propyl-7-methoxy-5-methylchromone were completely assigned by 2D NMR observations. Especially the 1H assignments of the glucosyl and hydroxyl protons were achieved by utilizing HMQC, HMBC, 1H-1H COSY and DEPT techniques together with a heavy water exchange 1H NMR experiment.

Publication types

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

MeSH terms

  • Aloe / metabolism*
  • Carbon Isotopes
  • China
  • Chromones / analysis*
  • Chromones / chemistry
  • Chromones / standards*
  • Computer Simulation
  • Magnetic Resonance Spectroscopy / methods*
  • Magnetic Resonance Spectroscopy / standards*
  • Models, Chemical*
  • Models, Molecular*
  • Plant Extracts / analysis
  • Plant Extracts / chemistry
  • Plant Extracts / standards
  • Protons
  • Reference Standards

Substances

  • Carbon Isotopes
  • Chromones
  • Plant Extracts
  • Protons