7-epi-griffonilide, a new lactone from Bauhinia pentandra: complete 1H and 13C chemical shift assignments

An Acad Bras Cienc. 2017 Jan-Mar;89(1):65-71. doi: 10.1590/0001-3765201720150757.

Abstract

A new lactone, 7-epi-griffonilide (1), and six known compounds, 2, 3a - 3c, 4a and 4b, were isolated from the leaves of Bauhinia pentandra (Fabaceae). The structures elucidation of 1 and 2 were based on detailed 2D NMR techniques and spectral comparison with related compounds, leading to complete assignment of the 1H and 13C NMR spectra.

MeSH terms

  • Bauhinia / chemistry*
  • Carbon-13 Magnetic Resonance Spectroscopy / methods
  • Lactones / chemistry*
  • Lactones / isolation & purification*
  • Molecular Structure
  • Plant Leaves / chemistry*
  • Proton Magnetic Resonance Spectroscopy / methods
  • Reference Values
  • Stereoisomerism

Substances

  • Lactones