[Chemical constituents from Polygonum capitatum and their antioxidation activities in vitro].
Zhong Yao Cai
; 31(7): 995-8, 2008 Jul.
Article
en Zh
| MEDLINE
| ID: mdl-18973013
ABSTRACT
OBJECTIVE:
To study the chemical constituents from Polygonum capitatum and their antioxidation activties in vitro.METHODS:
Compounds were isolated and purified by silica, polyamide and Sephadex LH-20 column chromatography. Their structures were identified by physicochemical properties and spectral analyses. The isolated compounds were screened with three antioxidation models in vitro.RESULTS:
Ten compounds were isolated and identified as galic acid (1), protocatechuic acid (2), progallin A (3), nimbecetin (4), quercetin (5), quercitroside (6), tetracosylferulate (7), quercetin-3-O-beta-D-glucoside (8), beta-deucosterol and beta-sitosterol (10). Compounds 1-6 from this plant showed antioxidation activities.CONCLUSION:
Compound 3 and 7 are isolated from this genus for the first time, compound 2, 4 and 9 are isolated from this plant for the first time, the pharmacological activities of the pure compounds from this plant are also reported firstly.
Search on Google
Banco de datos:
MEDLINE
Asunto principal:
Fenoles
/
Plantas Medicinales
/
Depuradores de Radicales Libres
/
Polygonum
/
Flavonas
Idioma:
Zh
Año:
2008
Tipo del documento:
Article