New acylated flavonol glycosides from the aerial parts of Gouania longipetala

Autor: Antoine Ahibo Coffy, Dominique Harakat, Abdulmagid Alabdul Magid, Philomène Akoua Yao-Kouassi, Diane Patricia Apie Gossan, Laurence Voutquenne-Nazabadioko
Přispěvatelé: Institut de Chimie Moléculaire de Reims - UMR 7312 (ICMR), SFR Condorcet, Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-SFR CAP Santé (Champagne-Ardenne Picardie Santé), Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Université de Reims Champagne-Ardenne (URCA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université Félix Houphouët-Boigny (UFHB)
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Phytochemistry Letters
Phytochemistry Letters, Elsevier, 2015, 11, pp.306-310. ⟨10.1016/j.phytol.2015.01.019⟩
ISSN: 1874-3900
DOI: 10.1016/j.phytol.2015.01.019⟩
Popis: International audience; Two new flavonol diglycosides kaempferol-3-O-(6-O-E-coumaroyl)-β-d-galactopyranosyl-(1→2)-α-l-rhamnopyranoside and kaempferol-3-O-(6-O-E-feruloyl)-β-d-galactopyranosyl-(1→2)-α-l-rhamnopyranoside were isolated from the aerial parts of Gouania longipetala in addition to seven known compounds. The structure elucidation of these compounds was based on analyses of spectroscopic data including 1D- and 2D-NMR and HR-ESI-MS techniques. The abilities of these compounds to scavenge the DPPH were evaluated. Results showed that compounds 2, 3, 8 and 9 have antioxidant potential with EC50 values ranging from 13.8 to 47.4 μM, compared with ascorbic acid (EC50 60 μM) which was used as positive control.
Databáze: OpenAIRE