The [1,2,4]triazolo[4,3-a][1,8]naphthyridine-6-carboxamide derivatives 5-amino (2) or 5-alkoxy (3) substituted and the 5-amino[1,2,4]triazolo[ 4,3-a]quinoline-4-carboxamide derivatives (4), designed to obtain new effective analgesic and/or anti-inflammatory agents were synthesized. Ten compounds 2 and 4 showed an interesting analgesic activity: the most potent ones are 2j (36% inhibition, P < 0.05) and 4b (77% inhibition, P < 0.01) at 6.25 and 25 mg kg1 doses, respectively. Compounds 2iel and 4c showed notable anti-inflammatory properties: the most potent ones are 2i (68% inhibition, P < 0.01) and 2l (42% inhibition, P < 0.05) at 12.5 and 6.25 mg kg1 doses, respectively. The replacement in compounds 2 of the N-substituted 5-amino substituents with similar alkoxy groups usually afforded less active compounds 3. 2007 Elsevier Masson SAS. All rights reserved.

1,8-Naphthyridines VII. New substituted 5-amino[1,2,4]triazolo[4,3-a][1,8]naphthyridine-6-carboxamides and their isosteric analogues, exhibiting notable anti-inflammatory and/or analgesic activities, but no acute gastrolesivity

ROMA, GIORGIO;GROSSI, GIANCARLO;DI BRACCIO, MARIO;
2008-01-01

Abstract

The [1,2,4]triazolo[4,3-a][1,8]naphthyridine-6-carboxamide derivatives 5-amino (2) or 5-alkoxy (3) substituted and the 5-amino[1,2,4]triazolo[ 4,3-a]quinoline-4-carboxamide derivatives (4), designed to obtain new effective analgesic and/or anti-inflammatory agents were synthesized. Ten compounds 2 and 4 showed an interesting analgesic activity: the most potent ones are 2j (36% inhibition, P < 0.05) and 4b (77% inhibition, P < 0.01) at 6.25 and 25 mg kg1 doses, respectively. Compounds 2iel and 4c showed notable anti-inflammatory properties: the most potent ones are 2i (68% inhibition, P < 0.01) and 2l (42% inhibition, P < 0.05) at 12.5 and 6.25 mg kg1 doses, respectively. The replacement in compounds 2 of the N-substituted 5-amino substituents with similar alkoxy groups usually afforded less active compounds 3. 2007 Elsevier Masson SAS. All rights reserved.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11567/246398
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