Reduced pyridyl derivatives with cardiovascular regulating prope

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

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514344, 514352, 514354, 546257, 546286, 546287, 546304, 546307, 546312, 546321, A61K 3144, C07D40104

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047710578

ABSTRACT:
Pharmaceutical compounds of the general formula (1): ##STR1## have been prepared and non-toxic pharmaceutically acceptable salts thereof, wherein the ring system is a 1,2- or 1,4-dihydropyridyl radical; R.sub.1 is a hydrogen, lower alkyl, lower alkyl carbonyl or lower alkoxy carbonyl substituent; R.sub.2 is a lower alkly or phenyl substituent; R.sub.3 is a lower alkoxy carbonyl, (N,N-lower dialkylamino) lower alkoxy carbonyl, (N-lower alkyl-N-phenyl lower alkyl amino) lower alkoxy carbonyl, lower alkoxy lower alkoxy carbonyl, nitro, or cyano substituent; R.sub.4 is a member selected from the group consisting of pyridyl, N-lower alkoxy carbonyl-1,2-dihydropyridyl, N-lower alkyl carbonyl-1,2-dihydropyridyl, N-phenyloxy carbonyl-1,2-dihydropyridyl, N-lower alkoxy carbonyl-1,6-dihydropyridyl, N-lower alkyl carbonyl-1,6-dihydropyridyl, N-lower alkyl carbonyl-1,6-dihydropyridyl, N-phenyloxy carbonyl-1,6-dihydropyridyl, N-lower alkoxy carbonyl-1,4-dihydropyridyl, N-lower alkyl carbonyl-1,4-dihydropyridyl, N-phenyloxy carbonyl-1,4-dihydropyridyl, N-lower alkyl 1,2,3,6-tetrahydropyridyl, N-lower alkoxy carbonyl-1,2,3,6-tetrahydropyridyl, N-lower alkyl carbonyl-1,2,3,6-tetrahydropyridyl, nitro substituted phenyl or trifluoromethyl substituted phenyl; R.sub.5 is a lower alkoxy carbonyl, (N,N-lower dialkylamino) lower alkoxy carbonyl, (N-lower alkyl-N-phenyl lower alkyl amino) lower alkoxy carbonyl, lower alkoxy lower alkoxy carbonyl, nitro, or cyano substitutent; R.sub.6 is a lower alkyl, or phenyl substituent, lower denoting a straight or branched chain having from 1-6 carbon atoms. These compounds regulate cardiovascular activity due to their ability to induce cerebral and peripheral vasodilation, decrease heart rate, and/or increase cardiac contractility, and are useful in the treatment of angina, arrhythmias, cerebralvascular disease and hypertension.

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