title: Angiotensin converting enzyme inhibitors: 1-glutarylindoline-2-carboxylic acids derivatives.
abstract: The preparation of a series of 1-glutarylindoline-2(S)-carboxylic acid derivatives, 6a-v and 21a-c, is described. The above compounds were tested for inhibition of angiotensin converting enzyme. The structure-activity relationship of the series is also discussed. Compound 6u, the most potent member of the series, had an in vitro IC50 of 4.8 X 10(-9) M. Compound 6v, an ethyl ester of 6u, lowered blood pressure 70 mm in spontaneous hypertensive rats at an oral dose of 30 mg/kg.
mesh_terms: D000806:Angiotensin-Converting Enzyme Inhibitors; D000818:Animals; D001665:Binding Sites; D001794:Blood Pressure / Q000187:drug effects; D007211:Indoles / Q000138:chemical synthesis* / Q000494:pharmacology; D009682:Magnetic Resonance Spectroscopy; D051381:Rats; D011919:Rats, Inbred Strains; D015032:Zinc / Q000378:metabolism
chemical_list: D000806:Angiotensin-Converting Enzyme Inhibitors; D007211:Indoles; D015032:Zinc