Novel 3-quinoline carboxamides of the formula ##STR1## wherein X' is in the 5,6,7 or 8-position and is selected from the group consisting of hydrogen, halogen, straight or branched alkyl and alkoxy of 1 to 5 carbon atoms, --CF.sub.3, --SCF.sub.3 and --OCF.sub.3, R.sub.1 is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms, R.sub.2 ' is selected from the group consisting of thiazolyl, 4,5-dihydrothiazolyl, pyridinyl, oxazolyl, isoxazolyl, imidazolyl, pyrimidyl and tetrazolyl, all optionally substituted with alkyl of 1 to 4 carbon atoms and phenyl optionally substituted with at least one member of the group consisting of alkyl and alkoxy of 1 to 4 carbon atoms, --CF.sub.3, --NO.sub.2 and halogen and their non-toxic, pharmaceutically acceptable acid addition salts having analgesic and anti-inflammatory activity and novel intermediates and process for their preparation.