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Two new carthamosides from Carthamus oxycantha
Zahid Hassan1, Viqar Uddin Ahmad, Javid Hussain
1H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270, Pakistan. zhassanhej@yahoo.com
Natural Product Communications
|April 28, 2010
Summary
Researchers isolated two novel glycosides and one known flavanone from Carthamus oxyacantha. These compounds were identified using advanced spectroscopic and mass spectrometric techniques.
Area of Science:
- Phytochemistry
- Natural Product Chemistry
- Organic Chemistry
Background:
- Carthamus oxyacantha is a plant species with potential medicinal properties.
- Isolation and characterization of bioactive compounds from medicinal plants are crucial for drug discovery.
- Previous phytochemical investigations of Carthamus species have revealed various classes of compounds.
Purpose of the Study:
- To isolate and characterize novel and known chemical constituents from Carthamus oxyacantha.
- To elucidate the structures of isolated compounds using comprehensive analytical methods.
Main Methods:
- Recycling preparative High-Performance Liquid Chromatography (HPLC) was employed for compound isolation.
- Mass spectrometry (MS) was utilized for molecular weight determination and fragmentation analysis.
- Extensive spectroscopic analysis, including Nuclear Magnetic Resonance (NMR) and Infrared (IR) spectroscopy, was performed for structural elucidation.
Main Results:
- Two new glycosides, 2-O-methylglucopyranosyl-carthamoside (1) and beta-D-fructofuranosyl carthamoside (2), were successfully isolated.
- A known compound, 3',4',5,7-tetrahydroxyflavanone (3), was also identified.
- The structures of all three isolated compounds were definitively established through detailed spectroscopic data.
Conclusions:
- The phytochemical investigation of Carthamus oxyacantha led to the discovery of two new glycosides.
- The structural confirmation of these compounds contributes to the understanding of the chemical diversity within the Carthamus genus.
- This study provides valuable data for potential future pharmacological evaluations of the isolated compounds.
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