[{"from": "human", "value": "Describe this molecule. [C][C][O][C][=Branch1][C][=O][C@H1][Branch1][O][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][N][C@@H1][Branch1][C][C][C][=Branch1][C][=O][N][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][C@H1][Ring1][#Branch2][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is the ethyl ester prodrug of the non-sulfhydryl angiotensin converting enzyme inhibitor quinaprilat. It is used to treat hypertension and heart failure. ACE inhibitors are commonly used as a first line therapy in the treatment of hypertension, along with thiazide diuretics or beta blockers.  Quinapril was granted FDA approval on 19 November 1991. A combination tablet with [hydrochlorothiazide] was also approved on 28 December 1999."}]