Novel indole carboxamides

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...

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514253, 514323, 514414, 514415, 514418, 544143, 544144, 544373, 546201, 548467, 548486, 548503, 548510, A61K 31535, A61K 3140, C07D41312, C07D20934

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047911093

ABSTRACT:
Novel indole-carboxamides of the formula ##STR1## wherein R and R.sub.1 are individually selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms, cycloalkyl of 3 to 7 carbon atoms, cycloalkylalkyl of 4 to 7 carbon atoms and aralkyl of 7 to 12 carbon atoms optionally substituted with 1 to 3 members of the group consisting of halogen, methyl, ethyl, methoxy, ethoxy, --CF.sub.3, CH.sub.3 S--, --NH.sub.2 and --NO.sub.2 or R.sub.1 and R taken together with the nitrogen atom form an optionally unsaturated heterocycle optionally containing a member of the group consisting of --O--, --S-- and ##STR2## R' is selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms, phenyl, naphthyl, aralkyl of 7 to 12 carbon atoms and substituted phenyl, R.sub.3 is selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms, alkoxy of 1 to 3 carbon atoms, chlorine, bromine, iodine, --NO.sub.2, --NH.sub.2, acylamide of an aliphatic carboxylic acid of 2 to 5 carbon atoms and mono and dialkylamino with alkyl of 1 to 5 carbon atoms, a and b form .dbd.O and c is hydrogen or a and c form a carbon-carbon bond and b is hydrogen, A is selected from the group consisting of --(CH.sub.2).sub.n --and ##STR3## n is an integer from 2 to 5, m is an integer from 1 to 3, B is ##STR4## R.sub.2 is selected from the group consisting of hydrogen and alkyl of 1 to 5 carbon atoms and their non-toxic, pharmaceutically acceptable acid addition salts having remarkable anti-arrhythmic properties.

REFERENCES:
patent: 4313947 (1982-02-01), Nakagawa et al.
patent: 4333951 (1982-06-01), Walsh
patent: 4361562 (1982-11-01), Berthold
patent: 4387100 (1983-06-01), Machin
patent: 4581355 (1986-04-01), Tahara et al.

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