title: Synthesis, structure and in vitro antibacterial activities of new hybrid disinfectants quaternary ammonium compounds: pyridinium and quinolinium stilbene benzenesulfonates.
abstract: The series of pyridinium (1-10) and quinolinium (11-20) stilbene benzenesulfonates have been synthesized and their structures were investigated by UV-vis, FT-IR and (1)H NMR spectroscopy. In addition, compound 5 was also determined by single crystal X-ray diffraction technique. The antibacterial activity of the synthesized compounds against both gram-positive and gram-negative bacteria has been determined. The quinolinium derivatives exhibited two very potent characteristic activities, namely, (i) specific activity to Methicillin-Resistant Staphylococcus aureus and (ii) with broad band spectrum activity. Compounds 11, 13 and 14 are the most active showing broad spectrum antibacterial activity against gram-positive (Methicillin-Resistant S. aureus, S. aureus, Bacillus subtilis, Vancomycin-Resistant Enterococcus faecalis and E. faecalis) and gram-negative bacterium (Shigella sonnei). The MICs of these compounds were found to be better than that of Benzalkonium chloride (BZK), the commercially used disinfectant.
authors.affiliation: Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand.
authors.forename: Kullapa
authors.initials: K
authors.lastname: Chanawanno
authors.forename: Suchada
authors.initials: S
authors.lastname: Chantrapromma
authors.forename: Theerasak
authors.initials: T
authors.lastname: Anantapong
authors.forename: Akkharawit
authors.initials: A
authors.lastname: Kanjana-Opas
authors.forename: Hoong-Kun
authors.initials: HK
authors.lastname: Fun
mesh_terms: D001419:Bacteria / Q000187:drug effects; D001557:Benzenesulfonates / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology*; D018360:Crystallography, X-Ray; D004202:Disinfectants / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D008826:Microbial Sensitivity Tests; D011726:Pyridinium Compounds / Q000737:chemistry*; D000644:Quaternary Ammonium Compounds / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology*; D011806:Quinolinium Compounds / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D001557:Benzenesulfonates; D004202:Disinfectants; D011726:Pyridinium Compounds; D000644:Quaternary Ammonium Compounds; D011806:Quinolinium Compounds; C032365:benzenesulfonic acid