Journal
JOURNAL OF MEDICINAL CHEMISTRY
Volume 55, Issue 16, Pages 7173-7181Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jm300681r
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Funding
- Fundamental Research Funds for the Central Universities [JKY2011010]
- Research and Innovation Project for College Graduates of Jiangsu Province [CXLX12_0319]
- Project Program of State Key Laboratory of Natural Medicines, China Pharmaceutical University [ZJ11176]
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The development of novel antithrombotic agents with strong free radical scavenging activity is of great significance for the treatment of ischemic stroke. In the present study, 3-alkyl/arylalkyl-substituted benzo[c]thiophen-1(3H)-ones (5a-h) were designed and synthesized. The most active compound 5d significantly inhibited the adenosine diphosphate (ADP) induced and arachidonic acid (AA) induced in vitro platelet aggregation, superior to clinically used antiplatelet drug aspirin (ASP) and anti-ischemic stroke drugs 3-n-butylphthalide (NBP) and edaravone (Eda). More importantly, in comparison with both NBP and Eda, 5d exhibited stronger antithrombotic and free radical scavenging activities and better or comparable neuroprotective effects against ischemia/reperfusion (I/R) in rats by ameliorating neurobehavioral function, reducing infarct size and brain-water content, attenuating cerebral damage, and normalizing the levels of oxidative enzymes. Overall, our findings may provide an alternative strategy for the design of novel anti-ischemic stroke agents more potent than drugs like NBP and Eda.
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