Four new flavonol glycosides from the leaves of Brugmansia suaveolens

Molecules. 2014 May 22;19(5):6727-36. doi: 10.3390/molecules19056727.

Abstract

Four new flavonol glycosides were isolated from the leaves of Brugmansia suaveolens: kaempferol 3-O-β-D-glucopyranosyl-(1'''→2'')-O-α-L-arabinopyranoside (1), kaempferol 3-O-β-D-glucopyranosyl-(1'''→2'')-O-α-L-arabinopyranoside-7-O-į-D-gluco-pyranoside (2), kaempferol 3-O-β-D-[6'''-O-(E-caffeoyl)]-glucopyranosyl-(1'''→2'')-O-α-l-arabinopyranoside-7-O-β-D-glucopyranoside (3), and kaempferol 3-O-β-D-[2'''-O-(E-caffeoyl)]-glucopyranosyl-(1'''→2'')-O-α-l-arabinopyranoside-7-O-β-D-glucopyranoside (4). The structure elucidation was performed by MS, 1D and 2D NMR analyses.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Flavonols / chemistry*
  • Flavonols / isolation & purification
  • Glycosides / chemistry
  • Kaempferols / chemistry
  • Magnetic Resonance Spectroscopy
  • Molecular Structure
  • Oligosaccharides / chemistry
  • Plant Leaves / chemistry
  • Solanaceae / chemistry*

Substances

  • Flavonols
  • Glycosides
  • Kaempferols
  • Oligosaccharides
  • kaempferol 3-O-beta-D-glucopyranosyl-(1''-2')-O-alpha-L-arabinopyranoside
  • kaempferol 3-O-rhamnopyranosyl-1-6-O-(glucopyranosyl-1-3-O-rhamnopyranosyl-1-2)-O-galactopyranoside