title: Antimicrobial activities of some amino derivatives of 5, 7-dibromo-2-methyl-8-benzoyloxyquinoline.
abstract: In an attempt to design and synthesize more potent quinoline-based chemotherapeutic agents structural modifications of 5, 7-Dibromo-2-methyl-8-benzoyloxyqinoline was carried out. The replacement of the bromine atoms with the requisite alkylamino compound gave four amino-derivatives viz: bis(dipropylamino)-dipyrrolidino-, dipiperidino- and dipiperazino derivatives. The antimicrobial activities of these compounds were investigated against selected Gram-positive bacteria (Staphylococcus aureus and Bacillus subtilis), Gram-negative bacteria (Escherichin coli, Pseudomonas aeruginosa and Klebsiella spp) and yeast (Candida albicans). All the compounds showed broad or significant antimicrobial activity, which varied from two to ninety times that of the parent compound. The dipyrrolidino derivative was the most effective against Gram-positive bacteria and yeast while the dipiperidino derivative was the most effective against Gram-negative bacteria. No correlation has been established between the minimum inhibitory, (MIC) concentrations of the derivatives and the structural modifications.
authors.affiliation: Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, University of Nigeria, Nsukka, Enugu State, Nigeria.
authors.forename: N J
authors.initials: NJ
authors.lastname: Nwodo
authors.forename: G B
authors.initials: GB
authors.lastname: Okide
authors.forename: C O
authors.initials: CO
authors.lastname: Esimone
mesh_terms: D000890:Anti-Infective Agents / Q000138:chemical synthesis* / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D005658:Fungi / Q000187:drug effects; D007202:Indicators and Reagents; D008826:Microbial Sensitivity Tests; D015125:Oxyquinoline / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000494:pharmacology
chemical_list: C501555:7-dibromo-2-methyl-8-benzoyloxyquinoline; D000890:Anti-Infective Agents; D007202:Indicators and Reagents; D015125:Oxyquinoline