Substituted alpah-methylbenzyl and tricyclic arylalkyl lactamimides as inhibitors of blood platelet aggregation.
1976
: N-[1-(p-Phenoxyphenyl)ethyl]hexahydro-2H-azepin-2-imine hydrochloride (10) and N-[1-(2-dibenzothienyl)-ethyl]hexahydro-2H-azepin-2-imine hydrochloride (22) were found to inhibit in vitro aggregation of human blood platelets induced by ADP with minimal release of procoagulant platelet factor 3. The compounds were selected from a series of substituted alpha-methylbenzyl and tricyclic arylalkyl lactamimides that were free of hypoglycemic and diuretic effects. Compounds 10 and 22, as well as N-[1-(1-naphthyl)ethyl]hexahydro-2H-azepin-2-imine hydrochloride (I) and N-(2,2-diphenylpentyl)hexahydro-2H-azepin-2-imine hydrochloride (II), were evaluated for effects on ADP-induced platelet aggregation after repeated oral administration to guinea pigs. Compound II (RMI 12,366A) showed in vivo activity in this system 2 h after the last of four daily doses of 100 mg/kg po.
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