DERIVATIVES OF INDOLE CARBOXAMIDE,THEIR SALTS,PROCESS AND INTERMEDIATES FOR PREPARATION,USE AS MEDICAMENTS AND COMPOSITIONS CONTAINING THEM

摘要

Novel indole-carboxamides of the formula I wherein R and R1 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, -CF3, CH3S-, -NH2 and -NO2 or R1 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 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, R3 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, -NO2, -NH2, 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 =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 -(CH2)n-and n is an integer from 2 to 5, m is an integer from 1 to 3, B is R2 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.