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Structure-activity relationships for selected sulfur-rich antithrombotic compounds
1Department of Pharmacology, Health Sciences Center, 1300 Jefferson Park Avenue, Charlottesville, Virginia 22908-0735, USA.
Biochemical and Biophysical Research Communications
|June 30, 2000
Summary
Simple organosulfur compounds were evaluated for antithrombotic activity. The study found that disulfides attached to a phenyl ring, especially with an alpha-sulfonyl group, are potent platelet aggregation inhibitors.
Area of Science:
- Medicinal Chemistry
- Pharmacology
- Organic Chemistry
Background:
- Ajoene, a garlic-derived organosulfur compound, exhibits pharmacologically active properties.
- Simple organosulfur compounds share structural features with ajoene, prompting investigation into their biological activities.
- Understanding structure-activity relationships is crucial for developing novel antithrombotic agents.
Purpose of the Study:
- To assess the antithrombotic potential of synthetic organosulfur compounds.
- To identify key structural features responsible for antithrombotic activity.
- To evaluate specific compounds as inhibitors of platelet aggregation.
Main Methods:
- Synthesis of simple organosulfur compounds mimicking ajoene's functional groups.
- Assessment of antithrombotic activity through in vitro assays.
- Determination of inhibitory concentration (IC50) for platelet aggregation.
Main Results:
- Antithrombotic activity is linked to disulfides directly conjugated to a phenyl ring.
- An alpha-sulfonyl group significantly enhances antithrombotic efficacy.
- Compound CH(3)SO(2)CH(2)SSPh demonstrated potent inhibition of platelet aggregation with an IC(50) of 5 microM.
Conclusions:
- Specific structural motifs in organosulfur compounds are critical for antithrombotic effects.
- The phenyl ring and alpha-sulfonyl group are key determinants of activity.
- CH(3)SO(2)CH(2)SSPh represents a promising lead compound for antithrombotic drug development.