Pharmacognosy Magazine

ORIGINAL ARTICLE
Year
: 2013  |  Volume : 9  |  Issue : 34  |  Page : 135--143

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


Adel M Abd El-kader1, Amany S Ahmed2, Alaa M Nafady1, Zedan Z Ibraheim2 
1 Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt
2 Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt

Correspondence Address:
Alaa M Nafady
Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhart University, Assiut 71524
Egypt

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-[α-L-rhamnopyranosyl-(1«SQ»«SQ»→2«SQ»)]-β-D-glucopyranoside (3) , as well as two new lignans identified as (+)-Lyoniresinol-3a-O-[α-L-rhamnopyranosyl-(1«SQ»«SQ»«SQ»→6«SQ»«SQ»)]-β-D-glucopyranoside (4) and (+)-Isolariciresinol-3a-O-[α-L-rhamnopyranosyl-(1«SQ»«SQ»«SQ»→2«SQ»«SQ»)-α-L-rhamnopyranosyl-(1«SQ»«SQ»«SQ»«SQ»→6«SQ»«SQ»)]-β-D-glucopyranoside (5) , in addition to β-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.


How to cite this article:
Abd El-kader AM, Ahmed AS, Nafady AM, Ibraheim ZZ. Xanthone and lignan glycosides from the aerial parts of Polygonum bellardii all growing in Egypt.Phcog Mag 2013;9:135-143


How to cite this URL:
Abd El-kader AM, Ahmed AS, Nafady AM, Ibraheim ZZ. Xanthone and lignan glycosides from the aerial parts of Polygonum bellardii all growing in Egypt. Phcog Mag [serial online] 2013 [cited 2021 Jul 28 ];9:135-143
Available from: http://www.phcog.com/article.asp?issn=0973-1296;year=2013;volume=9;issue=34;spage=135;epage=143;aulast=Abd;type=0