A new alpha-methylanthraquinone glucoside from Emex spinosus

Usama W Hawas; Mohamed A El-Ansari; Hartmut Laatsch

doi:10.1080/14786410500281789

A new alpha-methylanthraquinone glucoside from Emex spinosus

Nat Prod Res. 2006 Jul 10;20(8):742-7. doi: 10.1080/14786410500281789.

Authors

Usama W Hawas¹, Mohamed A El-Ansari, Hartmut Laatsch

Affiliation

¹ Phytochemistry and Plant Systematics Department, NRC, Dokki, Cairo, Egypt.

PMID: 16753907
DOI: 10.1080/14786410500281789

Abstract

A new alpha-methylanthraquinone glucoside, laccaic acid D 8-o-beta-D-glucoside, and six known anthraquinones have been isolated from the aqueous alcoholic extract of Emex spinosus (L.) Campd. (Polygonaceae), together with two known flavonol glycosides. The structures were determined by conventional analytical methods and confirmed by MS and NMR spectral analysis, including 2D experiments for the new compound.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Anthraquinones / chemistry
Anthraquinones / isolation & purification*
Glucosides / chemistry
Glucosides / isolation & purification*
Magnetic Resonance Spectroscopy
Molecular Structure
Polygonaceae / chemistry*
Quercetin / analogs & derivatives
Quercetin / isolation & purification

Substances

Anthraquinones
Glucosides
laccaic acid D 8-O-glucoside
isoquercitrin
Quercetin