申请人:Roussel Uclaf
公开号:US04107310A1
公开(公告)日:1978-08-15
Novel quinoline-3-carboxamides of the formula ##STR1## wherein R.sub.1 is in the 5,6,7 or 8-position and is selected from the group consisting of hydrogen, halogen, --CF.sub.3, --OCF.sub.3, --SCF.sub.3, straight chain alkyl of 1 to 4 carbon atoms, branched alkyl of 3 to 5 carbon atoms and alkoxy of 1 to 4 carbon atoms, R.sub.2 is selected from the group consisting of hydrogen and methyl, R.sub.3 is selected from the group consisting of thiazolyl, 4,5-dihydrothiazolyl, pyridinyl, oxazolyl and imidazolyl and R.sub.4 is selected from the group consisting of hydrogen, hydroxyl, alkyl of 1 to 4 carbon atoms, phenyl and benzyl with the proviso that when R.sub.1 is in the 7 or 8-position and is halogen, --CH.sub.3, --OCF.sub.3 or --SCF.sub.3 and R.sub.4 is hydrogen, R.sub.3 is not thiazolyl, pyridinyl or oxazolyl and the non-toxic, pharmaceutically acceptable acid addition salts when R.sub.3 is imidazolyl or 4,5-dihydrothiazolyl having analgesic activity and their preparation and novel intermediates therefore.
新型喹啉-3-羧酰胺的化学式为##STR1##其中R.sub.1位于5,6,7或8位,选择自氢、卤素、--CF.sub.3、--OCF.sub.3、--SCF.sub.3、1至4个碳原子的直链烷基、3至5个碳原子的支链烷基和1至4个碳原子的烷氧基组成的群,R.sub.2选择自氢和甲基,R.sub.3选择自噻唑基、4,5-二氢噻唑基、吡啶基、噁唑基和咪唑基,R.sub.4选择自氢、羟基、1至4个碳原子的烷基、苯基和苄基,但是当R.sub.1位于7或8位且为卤素、--CH.sub.3、--OCF.sub.3或--SCF.sub.3时,且R.sub.4为氢时,R.sub.3不是噻唑基、吡啶基或噁唑基,当R.sub.3为咪唑基或4,5-二氢噻唑基时,其非毒性、药理学上可接受的酸盐具有镇痛活性,以及它们的制备和新型中间体。