[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][=Branch1][C][=O][O][C@H1][Branch1][=Branch1][C][Branch1][C][C][C][O][P@][=Branch1][C][=O][Branch1][=N][C][C][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][C][=Branch1][C][=O][N][C][C@@H1][Branch1][#Branch2][C][C@H1][Ring1][Branch1][C][=Branch1][C][=O][O-1][C][C][C][C][C][C][Ring1][=Branch1].[Na+1]"}, {"from": "gpt", "value": "The molecule is the sodium salt of fosinopril, a phosphinic acid-containing angiotensin-converting enzyme (ACE) inhibitor with antihypertensive activity. Fosinopril sodium is an ester prodrug that is hydrolysed by esterases to its active metabolite fosinoprilat. Fosinoprilat specifically and competitively inhibits angiotensin-converting enzyme thereby decreasing the formation of the potent vasoconstrictor angiotensin II, resulting in diminished vasopressor activity. In addition, angiotensin II-mediated aldosterone secretion by adrenal cortex is decreased, which results in a decrease of sodium retention and an increase of serum potassium. (NCI05)"}]