Antiplatelet activity and structure-activity relationship study of Pyrazolopyridine Derivatives as potential series for treating thrombotic diseases.
J Atheroscler Thromb
; 17(7): 730-9, 2010 Jul 30.
Article
in En
| MEDLINE
| ID: mdl-20523012
ABSTRACT
AIM:
Platelets plays a central role in hemostatic processes and consequently are similarly involved in pathological processes, such as arterial thrombosis and atherosclerosis. Herein we described the synthesis, antiplatelet profile and structure-activity relationship (SAR) of a new series of N'-substitutedphenylmethylene-1H-pyrazolo[3,4-b]pyridine-carbohydrazide derivatives (3a-3k).METHODS:
These compounds were synthesized in good yield and tested in platelet aggregation assays using collagen, ADP and arachidonic acid as agonists. We also performed a SAR studies using SPARTAN' 08 program, in silico ADMET screening and the Lipinski " rule of five " using Osiris Property Explorer and molinspiration on-line programs.RESULTS:
Interestingly, the new compounds were active against collagen and arachidonic acid (AA) with the two most actives compounds (3a and 3c - IC(50)=61 microM and 68 microM respectively) almost 5-fold more potent than aspirin (IC(50)=300 microM). These derivatives showed low theoretical toxicity risks in in silico ADMET screening and fulfilled the Lipinski rule of five, suggesting good oral biodisponibility.CONCLUSION:
This work showed carbohydrazide group as potential for designing new antiplatelets. On that purpose, 3a and 3c may act as prototypes to generate more efficient and safe molecules for treating thrombotic diseases.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Pyrazoles
/
Pyridines
/
Thrombosis
/
Blood Platelets
/
Platelet Aggregation Inhibitors
/
Platelet Aggregation
Limits:
Humans
Language:
En
Journal:
J Atheroscler Thromb
Journal subject:
ANGIOLOGIA
Year:
2010
Document type:
Article
Affiliation country:
Brazil