title: Rigid congeners of arylpyridazinones. IV. Synthesis and activity of derivatives of the new heterocyclic system 9H-indeno[2,1-c]pyridazine.
abstract: Representative terms of the new heterocyclic system 9H-indeno[2,1-c]pyridazine have been synthesized. Their antiinflammatory, analgesic and antipyretic activities were evaluated, in order to compare the pharmacological profiles with those of the isomeric series of 5H-indeno[1,2-c]pyridazine previously investigated. The new compounds were, in general, equiactive as analgesic but less active as antiinflammatory and antipyretic agents with respect to their 5H-isomers.
mesh_terms: D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000138:chemical synthesis* / Q000494:pharmacology; D055598:Chemical Phenomena; D002621:Chemistry; D007192:Indenes / Q000138:chemical synthesis* / Q000494:pharmacology; D008297:Male; D051379:Mice; D010084:Oxidation-Reduction; D011724:Pyridazines / Q000138:chemical synthesis* / Q000494:pharmacology; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D007192:Indenes; D011724:Pyridazines