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Alpha-glucosidase inhibitory constituents from Cuscuta reflexa
Erum Anis1, Itrat Anis, Saeed Ahmed
1International Center for Chemical Sciences, H.E.J Research Institute of Chemistry, University of Karachi, Pakistan.
Chemical & Pharmaceutical Bulletin
|February 5, 2002
Summary
Two novel compounds and five known compounds were isolated from Cuscuta reflexa. These compounds demonstrated significant alpha-glucosidase inhibitory activity, suggesting potential therapeutic applications.
Area of Science:
- Phytochemistry
- Pharmacology
Background:
- Cuscuta reflexa is a parasitic plant with a history of traditional medicinal use.
- Investigating the chemical constituents of medicinal plants can lead to the discovery of novel therapeutic agents.
Purpose of the Study:
- To isolate and characterize new and known chemical compounds from Cuscuta reflexa.
- To evaluate the alpha-glucosidase inhibitory activity of the isolated compounds.
Main Methods:
- Phytochemical analysis involving isolation and purification techniques.
- Structural elucidation using comprehensive spectral analysis (e.g., NMR, MS).
- In vitro enzymatic assays to determine alpha-glucosidase inhibition.
Main Results:
- Two new compounds, 7'-(3',4'-dihydroxyphenyl)-N-[(4-methoxyphenyl)ethyl]propenamide and 7'-(4'-hydroxy,3'-methoxyphenyl)-N-[(4-butylphenyl)ethyl]propenamide, were identified.
- Five known compounds were isolated from Cuscuta reflexa for the first time.
- All isolated compounds exhibited strong inhibitory activity against alpha-glucosidase.
Conclusions:
- Cuscuta reflexa is a rich source of bioactive compounds with potential anti-diabetic properties.
- The isolated compounds, particularly the new ones, warrant further investigation for their therapeutic efficacy and mechanism of action.
- These findings support the traditional use of Cuscuta reflexa and highlight its potential in drug discovery.