131021-81-3Relevant articles and documents
Effects of Functional Groups and Sugar Composition of Quercetin Derivatives on Their Radical Scavenging Properties
Kato, Komei,Ninomiya, Masayuki,Tanaka, Kaori,Koketsu, Mamoru
, p. 1808 - 1814 (2016/08/02)
Quercetin derivatives are widespread in the plant kingdom and exhibit various biological actions. The aim of this study was to investigate the structure-activity relationships of quercetin derivatives, with a focus on the influence of functional groups and sugar composition on their antioxidant capacity. A series of quercetin derivatives were therefore prepared and assessed for their DPPH radical scavenging properties. Isoquercetin O-gallates were more potent radical scavengers than quercetin. The systematic analysis highlights the importance of the distribution of hydroxy substituents in isoquercetin O-gallates to their potency.
Phase-transfer-catalyzed synthesis of flavonoid glycosides
Demetzos, Costas,Skaltsounis, Alexios-Leandros,Tillequin, Francois,Koch, Michel
, p. 131 - 137 (2007/10/02)
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