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Acta Physiologiae Plantarum

, Volume 26, Issue 3, pp 291–297 | Cite as

8-Hydroxyflavonoid glucuronides of Malope trifida

  • Maria Sikorska
  • Irena Matławska
  • Rafał Fra ski
Article

Abstract

The new flavonoid: herbacetin 3-O-β-glucopyranoside-8-O-β-glucuronopyranoside (1) together with known gossypetin 3-O-β-glucopyranoside - 8-O-β-glucuronopyranoside (2) and isoscutellarein: 8-O-β-glucuronopyranoside (3) as well as 4′-methyl ether-8-O-β-glucuronopyranoside (4), were isolated from the calyx and epicalyx leaves of Malope trifida and identified on the basis of their spectroscopic properties: UV, 1H and 13C NMR, ESI/MS. Two other flavonoids were identified as isoscutellarein: 3′-hydroxy 4′-methyl ether-8-O-β-glucuronoside (5) and 8-O- rhamnoglucoside (6) on the basis of their UV and ESI/MS data.

Key words

Malope trifida Malvaceae Flavonoids Herbacetin 3-O-β-glucopyranoside- 8-O-β-glucuronopyranoside Gossypetin 3-O-β-glucopyranoside - 8-O-β-glucuronopyranoside Isoscutellarein derivatives 

List of abbreviations

MeOH

methanol

CHCl3

chloroform

EtOAc

ethyl acetate

n-PrOH

n-propanol

HCOOH

formic acid

HOAc

acetic acid

ESI/MS

ElectroSprayIonization/Mass Spectrometry

DMSO

d6 hexadeuteriodimethylsulphoxide

1H NMR

Proton Nuclear Magnetic Resonance

13C NMR

Carbon Nuclear Magnetic Resonance

TMS

trimethylsilyl

TLC

Thin Layer Chromatography

PC

Paper Chromatography

ppm

part per million

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Copyright information

© Department of Plant Physiology 2004

Authors and Affiliations

  • Maria Sikorska
    • 1
  • Irena Matławska
    • 1
  • Rafał Fra ski
    • 2
  1. 1.Department of Pharmacognosy, PoznaUniversity of Medical SciencesPoznaPoland
  2. 2.Faculty of ChemistryAdam Mickiewicz UniversityPoznaPoland

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