[{"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 that is 4,5,6,7-tetrahydrothieno[3,2-c]pyridine in which the hydrogen attached to the nitrogen is replaced by an o-chlorobenzyl group, the methylene hydrogen of which is replaced by a methoxycarbonyl group (the S enantiomer). A P2Y12 receptor antagonist, it is used to inhibit blood clots and prevent heart attacks. It has a role as a platelet aggregation inhibitor, an anticoagulant and a P2Y12 receptor antagonist. It is a thienopyridine, a member of monochlorobenzenes and a methyl ester. It is functionally related to a ticlopidine."}]