Novel flavonoids from the leaves of Actinidia valvata Dunn: structural elucidation and antioxidant activity.
Planta Med
; 77(1): 70-3, 2011 Jan.
Article
en En
| MEDLINE
| ID: mdl-20665371
Two novel flavonoids, kaempferol 3- O- α-L-rhamnopyranosyl (1-3) (2,4-di- O-acetyl-α-L-rhamnopyranosyl) (1-6) ß-D-galactopyranoside (1) and kaempferol 3- O-α-L-rhamnopyranosyl (1-3) (4-O-acetyl-α-L-rhamnopyranosyl) (1-6) ß-D-galactopyranoside (2), along with three known ones, kaempferol-3- O-ß-D-galactopyranoside (3), kaempferol (4), and 7-hydroxychromone (5), have been isolated from the leaves of Actinidia valvata Dunn, and their structures were elucidated based on spectroscopic methods. Compounds 1-3 exhibited dose-dependent activity in scavenging 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radicals, superoxide anion radicals, and hydroxyl radicals, and inhibited lipid peroxidation of mouse liver homogenate IN VITRO.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Flavonoides
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Actinidia
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Antioxidantes
Idioma:
En
Revista:
Planta Med
Año:
2011
Tipo del documento:
Article