RESUMEN

Galinsosides A (1) and B (2), new flavanone glucosides together with two known flavanones, 7,3',4'-trihydroxyflavanone (3) and 3,5,7,3',4'-pentahydroxyflavanone (4) have been isolated from an ethyl acetate- soluble fraction of Galinsoga parviflora. Their structures were assigned on the basis of spectral studies. Compound 1 showed significant antioxidant and urease inhibitory activity while compound 2 was moderately active. On the other hand, 2 showed inhibitory potential against alpha-glucosidase.

Asunto(s)

Asteraceae/química , Flavanonas , Glucósidos , Extractos Vegetales/química , Extractos Vegetales/farmacología , Antioxidantes/química , Antioxidantes/farmacología , Flavanonas/química , Flavanonas/farmacología , Glucósidos/química , Glucósidos/farmacología , Espectroscopía de Resonancia Magnética , Estructura Molecular , Estructuras de las Plantas/química , Ureasa/antagonistas & inhibidores