title: Studies on azopyrazole derivatives. Part 9: Synthesis and antibacterial evaluation of novel phenylhydrazones and their substituted 4-arylazopyrazole derivatives.
abstract: 6-Methyl-2,4-heptandione (1) was coupled with diazonium salts of sulfanilamide (2) and 4-aminobenzoic acid (3). Resulting new hydrazones, namely 4-methyl-2-oxovaleraldehyde p-substituted phenylhydrazones 4 and 5, were refluxed with various hydrazines to synthesize the title compounds 6-15. Their structure elucidation was made on the basis of their analytical and spectroscopic data. The antibacterial activity was evaluated. Some of the compounds tested exerted moderate to potent antibacterial activity against Staphylococcus aureus, Staphylococcus epidermidis and Streptococcus pyogenes.
authors.affiliation: University of Istanbul, Faculty of Pharmacy, Istanbul, Turkey.
authors.forename: N
authors.initials: N
authors.lastname: Ergenç
authors.forename: B
authors.initials: B
authors.lastname: Durgun
authors.forename: G
authors.initials: G
authors.lastname: Otük
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects*; D006835:Hydrazones / Q000138:chemical synthesis* / Q000494:pharmacology; D008826:Microbial Sensitivity Tests
chemical_list: D000900:Anti-Bacterial Agents; D006835:Hydrazones; C012483:phenylhydrazone