| 摘要 |
2-Carboxy-perhydroindole, 3-carboxy-1,2,3,4-tetrahydro isoquinoline and 3-carboxy perhydro-isoquinoline derivs. of formula (I), in the form of the racemate or optical isomers, and their salts with mineral or organic acids or bases are new. In (I) Ring A is satd. and n is 0 or 1 or Ring A is a benzene ring and n is 1; R2 is 1-4C alkyl opt. substd. by an amino gp; R2 is H or 1-4C alkyl; R3 is opt. branched alkyl, mono- or dicycloalkyl-alkyl or phenalkyl (having at most 9C atoms) or a substd. alkyl gp. of formula -(CH2)p-Y-CHR4R5; R4 is H, 1-4C alkyl or 3-6C cycloalkyl; R5 is H, 1-4C alkyl, 3-6C cycloalkyl or alkoxycarbonyl; Y is =S or =N-Q Q is H, acetyl or benzyloxycarbonyl; p is 1 or 2 and q is 0 or 1. (I) inhibit enzymes, such as carboxypolypeptidases, enkephalinases and kininase II, and inhibit the conversion of the decapeptide angiotensin I into the octapeptide angiotensin II (which causes arterial hypertension in certain cases) by inhibiting the conversion enzyme. The cpds. are used to treat hypertension and cardiac insufficiency. Their inhibition of kininase II increases the circulating bradykinin and lowers blood pressure. The cpds. are administered orally or intravenously, opt. with other synergestic or complimentary cpds. e.g. furosemide. |
