[{"from": "human", "value": "Describe this molecule. [C][C@][C][C][C][=Branch1][C][=O][C][=C][Ring1][#Branch1][C][C@H1][Branch2][Ring2][C][C@@H1][C@][Ring1][O][C@H1][Branch1][Ring2][O][Ring1][Ring1][C][C@][Branch2][Ring1][C][C@H1][Ring1][#Branch1][C][C][C@@][Ring1][Branch1][C][C][C][=Branch1][C][=O][O][Ring1][=Branch1][C][C][=Branch1][C][=O][O][C]"}, {"from": "gpt", "value": "The molecule is a selective aldosterone receptor antagonist. Eplerenone binds to the mineralocorticoid receptor and blocks the binding of aldosterone, thereby decreasing sodium resorption and subsequently increasing water outflow. This leads to a decrease in blood pressure. Eplerenone is used in the treatment of hypertension and congestive heart failure."}]