title: Synthesis and analgesic activity of novel N-acylarylhydrazones and isosters, derived from natural safrole.
abstract: Anew series of antinociceptive compounds belonging to the N-acylarylhydrazone (NAH) class were synthesized from natural safrole (7). The most analgesic derivative represented by 10f, [(4'-N,N-dimethylaminobenzylidene-3-(3', 4'-methylenedioxyphenyl)propionylhydrazine], was more potent than dipyrone and indomethacin, used as standards. The NAH compounds described herein were structurally planned by molecular hybridization and classical bioisosterism strategies on previously reported analgesic NAH in order to identify the pharmacophoric contribution of the N-acylarylhydrazone moiety and investigate the structure-activity relationship (SAR) in these series.
authors.affiliation: Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
authors.forename: P C
authors.initials: PC
authors.lastname: Lima
authors.forename: L M
authors.initials: LM
authors.lastname: Lima
authors.forename: K C
authors.initials: KC
authors.lastname: da Silva
authors.forename: P H
authors.initials: PH
authors.lastname: Léda
authors.forename: A L
authors.initials: AL
authors.lastname: de Miranda
authors.forename: C A
authors.initials: CA
authors.lastname: Fraga
authors.forename: E J
authors.initials: EJ
authors.lastname: Barreiro
mesh_terms: D000085:Acetates; D018712:Analgesics, Non-Narcotic / Q000138:chemical synthesis* / Q000494:pharmacology; D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000494:pharmacology; D002855:Chromatography, Thin Layer; D004177:Dipyrone / Q000494:pharmacology; D015195:Drug Design; D005260:Female; D006835:Hydrazones / Q000138:chemical synthesis* / Q000494:pharmacology; D007213:Indomethacin / Q000494:pharmacology; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D051379:Mice; D010147:Pain Measurement / Q000187:drug effects; D012451:Safrole / Q000031:analogs & derivatives* / Q000737:chemistry*
chemical_list: D000085:Acetates; D018712:Analgesics, Non-Narcotic; D000894:Anti-Inflammatory Agents, Non-Steroidal; D006835:Hydrazones; D004177:Dipyrone; D012451:Safrole; D007213:Indomethacin