Complete NMR data assignments for novel pterocarpans from Harpalyce brasiliana

Magn Reson Chem. 2008 Sep;46(9):890-3. doi: 10.1002/mrc.2269.

Abstract

A NMR study of two new pterocarpans isolated from the roots of Harpalyce brasiliana is described. In addition to 1D NMR, 2D shift-correlated NMR pulse sequences ((1)H-(1)H-COSY, HSQC and HMBC) were used to establish the structures, and unambiguously perform the (1)H and (13)C chemical shift assignments.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Carbon Isotopes
  • Fabaceae / chemistry*
  • Magnetic Resonance Spectroscopy / methods*
  • Magnetic Resonance Spectroscopy / standards*
  • Molecular Conformation
  • Plant Roots / chemistry
  • Protons
  • Pterocarpans / chemistry*
  • Pterocarpans / isolation & purification
  • Reference Standards
  • Stereoisomerism

Substances

  • Carbon Isotopes
  • Protons
  • Pterocarpans