Author/Authors :
Shamsa, Fazel Department of Medicinal Chemistry - Faculty of Pharmacy and Pharmaceutical Sciences Research Center - Tehran University of Medical Sciences , Foroumadi, Alireza Drug Design and Development Research Center - Tehran University of Medical Sciences, Tehran , Shamsa, Hashim Department of Medicinal Chemistry - Faculty of Pharmacy and Pharmaceutical Sciences Research Center - Tehran University of Medical Sciences , Samadi, Nasrin Department of Drug and Food Control - Faculty of Pharmacy - Tehran University of Medical Sciences, Tehran , Faramarzi, Mohammad Ali Department of Pharmaceutical Biotechnology - Faculty of Pharmacy - Tehran University of Medical Sciences, Tehran , Shafiee, Abbas Department of Medicinal Chemistry - Faculty of Pharmacy and Pharmaceutical Sciences Research Center - Tehran University of Medical Sciences
Abstract :
Novel analogues of N-piperazinyl fluoroquinolones were prepared and evaluated against a panel of Gram-positive and Gram-negative bacteria, to study the effect of introducing bulky anthracene and phenanthrene moieties on the antibacterial effects of norfloxacin, ciprofloxacin and gatifloxacin. Although most of the novel synthesized compounds had lower antibacterial effects, some derivatives showed better activity in comparison with mother drugs based on molar concentration; for example, the 3-acetyl phenanthrene analogue of norfloxacin was more effective than E. coli and K. pneumonia.
Keywords :
N-substituted piperazinyl quinolones , Anthracene derivatives , Phenanthrene derivatives , In-vitro antibacterial activity
