[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C][C][C][=N][C][=C][Branch2][Ring1][Ring2][N][Ring1][Branch1][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][/C][=C][Branch1][=Branch2][\\C][C][=C][C][=C][S][Ring1][Branch1][/C][=Branch1][C][=O][O].[C][S][=Branch1][C][=O][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is the mesylate salt form of eprosartan, a non-biphenyl, non-tetrazole, nonpeptide angiotensin II antagonist with antihypertensive activity. Eprosartan mesylate antagonizes angiotensin II type I receptors in tissues such as vascular smooth muscle and the adrenal gland. This prevents angiotensin II-induced vasoconstriction and prevents angiotensin II-mediated stimulation of aldosterone secretion by the adrenal cortex, which decreases the excretion of sodium and water and increases the excretion of potassium."}]