title: Synthesis of some novel imidazole-based dicationic carbazolophanes as potential antibacterials.
abstract: Synthesis of fluorescent imidazole-based dicationic carbazolophanes incorporating various spacer units is described. Interestingly, the cyclophanes 2a and 5a incorporating a pyridine moiety exhibited superior antibacterial activity against most of the pathogenic bacteria in the tested concentrations as compared to the other cyclophanes as well as the test control, benzalkonium chloride (BAC), cetylpyridinium chloride (CPC) and tetracycline.
authors.affiliation: Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India. perumalrajakumar@hotmail.com
authors.forename: Perumal
authors.initials: P
authors.lastname: Rajakumar
authors.forename: Karuppannan
authors.initials: K
authors.lastname: Sekar
authors.forename: Vellasamy
authors.initials: V
authors.lastname: Shanmugaiah
authors.forename: Narayanasamy
authors.initials: N
authors.lastname: Mathivanan
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D001548:Benzalkonium Compounds / Q000494:pharmacology; D002227:Carbazoles / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D002594:Cetylpyridinium / Q000494:pharmacology; D007093:Imidazoles / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D008826:Microbial Sensitivity Tests; D015394:Molecular Structure; D011513:Proteus mirabilis / Q000187:drug effects; D011514:Proteus vulgaris / Q000187:drug effects; D011550:Pseudomonas aeruginosa / Q000187:drug effects; D000644:Quaternary Ammonium Compounds / Q000737:chemistry; D012485:Salmonella typhi / Q000187:drug effects; D013211:Staphylococcus aureus / Q000187:drug effects; D013752:Tetracycline / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D001548:Benzalkonium Compounds; D002227:Carbazoles; D007093:Imidazoles; D000644:Quaternary Ammonium Compounds; D002594:Cetylpyridinium; D013752:Tetracycline