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Sulfemodin 8-O-β-<SCP>d</SCP>-Glucoside, a New Sulfated Anthraquinone Glycoside, and Antioxidant Phenolic Compounds from Rheum emodi
- Source :
- Journal of Natural Products; August 2003, Vol. 66 Issue: 8 p1107-1109, 3p
- Publication Year :
- 2003
-
Abstract
- A sulfated emodin glucoside, emodin 8-O-β-<SCP>d</SCP>-glucopyranosyl-6-O-sulfate (<BO>1</BO>), was isolated from the roots of Rheum emodi in an investigation of the active constituents of this Nepalese medicinal plant, and its structure was determined by spectroscopic and chemical methods. Additionally, two rare auronols, carpusin (<BO>2</BO>) and maesopsin (<BO>3</BO>), besides other anthraquinones and phenolics, were isolated and identified. Compounds <BO>2 </BO>and <BO>3 </BO>showed significant antioxidant activity in the DPPH assay, while chrysophanol, physcion, and emodin and their 8-O-glucosides were found to be inactive.
Details
- Language :
- English
- ISSN :
- 01633864 and 15206025
- Volume :
- 66
- Issue :
- 8
- Database :
- Supplemental Index
- Journal :
- Journal of Natural Products
- Publication Type :
- Periodical
- Accession number :
- ejs5185450