[{"from": "human", "value": "Provide a brief overview of this molecule. [C][O][C][=Branch1][C][=O][C@H1][Branch1][#Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][Cl][N][C][C][C][=C][Branch1][Ring2][C][Ring1][=Branch1][C][=C][S][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a thienopyridine, with antiplatelet activity. Clopidogrel targets, irreversibly binds to and alters the platelet receptor for adenosine diphosphate (ADP), thereby blocking the binding of ADP to its receptor, inhibiting ADP-mediated activation of the glycoprotein complex GPIIb/IIIa, and inhibiting fibrinogen binding to platelets and platelet adhesion and aggregation. This results in increased bleeding time."}]