New Phenylpropanoid Esters of Sucrose from Polygonum hydropiper and Their Antioxidant Activity

By various chromatographic methods, two new phenylpropanoid esters of sucrose named hidropiperosides A (1) and B (2), and three known compounds as vanicosides A (3), B (4), and E (5) were isolated from the methanolic extract of the whole plant of Polygonum hydropiper L. (Polygonaceae). Their structu...

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Bibliographic Details
Published in:Archives of pharmacal research 2008, Vol.31 (11), p.1477-1482
Main Authors: Kiem, Phan Van, Nhiem, Nguyen Xuan, Cuong, Nguyen Xuan, Hoa, Tran Quynh, Huong, Hoang Thanh, Huong, Le Mai, Minh, Chau Van, Kim, Young-Ho
Format: Article
Language:Korean
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Summary:By various chromatographic methods, two new phenylpropanoid esters of sucrose named hidropiperosides A (1) and B (2), and three known compounds as vanicosides A (3), B (4), and E (5) were isolated from the methanolic extract of the whole plant of Polygonum hydropiper L. (Polygonaceae). Their structures were elucidated by extensive spectroscopic methods including 1D- and 2D-NMR experiments, as well as ESI-MS analysis. All the isolated compounds were tested for their antioxidant activity in the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assay system. Among them, compounds 2 and 3 showed significant antioxidant activity with their $SC_{50}$ values of 23.4 and $26.7{\mu}g/mL$, respectively.
ISSN:0253-6269
1976-3786