Xanthone and lignan glycosides from the aerial parts of Polygonum bellardii all growing in Egypt

被引：6

作者：

Abd El-Kader, Adel M. ^{[1
]}

Ahmed, Amany S. ^{[2
]}

Nafady, Alaa M. ^{[1
]}

Ibraheim, Zedan Z. ^{[2
]}

机构：

[1] Al Azhar Univ, Dept Pharmacognosy, Fac Pharm, Assiut 71524, Egypt

[2] Assiut Univ, Dept Pharmacognosy, Fac Pharm, Assiut 71526, Egypt

来源：

PHARMACOGNOSY MAGAZINE | 2013年 / 9卷 / 34期

关键词：

Antioxidant; lignans; Polygonaceae; Polyonum bellardii; xanthone; STILBENE GLYCOSIDE; CONSTITUENTS; ANTIOXIDANT; ROOTS;

D O I：

10.4103/0973-1296.111266

中图分类号：

R914 [药物化学];

学科分类号：

100701 ;

摘要：

A new long chain fatty alcohol acetate identified as 17-hydroxypentacosanyl acetate, (1) together with a new xanthone identified as 1,8-Dihydroxy-3,6-dimethoxy-xanthone-5-O-[-L-rhamnopyranosyl-(12)]--D-glucopyranoside (3) , as well as two new lignans identified as ()-Lyoniresinol-3a-O-[-L-rhamnopyranosyl-(16)]--D-glucopyranoside (4) and ()-Isolariciresinol-3a-O-[-L-rhamnopyranosyl-(12)--L-rhamnopyranosyl-(16)]--D-glucopyranoside (5) , in addition to -sitosterol-3-O-acetate (2) were isolated from the methanolic extract of the aerial parts of Polygonum bellardii growing in Egypt. Their structures were elucidated on the basis of different chemical and spectroscopic evidences. The total extract and its fractions, in addition to compounds (3, 4 and 5) showed significant antioxidant potential by DPPH scavenging activity technique.

引用

页码：135 / 143

页数：9

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