title: Synthesis and antibacterial activity of a novel series of DNA gyrase inhibitors: 5-[(E)-2-arylvinyl]pyrazoles.
abstract: The 2-arylvinyl moiety in 1-(3-chlorophenyl)-3-(4-piperidyl)-5-[(E)-2-(5-chloro-1H-indol-3-yl)vinyl]pyrazole 2, which has previously shown improved DNA gyrase inhibition and target-related antibacterial activity, was transformed to other groups and the in vitro antibacterial activity of the synthesized compounds was evaluated. Many of the 5-[(E)-2-arylvinyl]pyrazoles synthesized in this study exhibited potent antibacterial activity against quinolone-resistant clinical isolates of gram-positive bacteria with minimal inhibitory concentration values equivalent to those against susceptible strains.
authors.affiliation: Chemistry Research Laboratories, Dainippon Pharmaceutical Co., Ltd, 33-94, Enoki, Suita, Osaka 564-0053, Japan. akihiko-tanitame@dainippon-pharm.co.jp
authors.forename: Akihiko
authors.initials: A
authors.lastname: Tanitame
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Oyamada
authors.forename: Keiko
authors.initials: K
authors.lastname: Ofuji
authors.forename: Hideo
authors.initials: H
authors.lastname: Terauchi
authors.forename: Motoji
authors.initials: M
authors.lastname: Kawasaki
authors.forename: Masaaki
authors.initials: M
authors.lastname: Wachi
authors.forename: Jun-ichi
authors.initials: J
authors.lastname: Yamagishi
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D004351:Drug Resistance; D006094:Gram-Positive Bacteria / Q000187:drug effects; D008826:Microbial Sensitivity Tests; D011720:Pyrazoles / Q000138:chemical synthesis* / Q000494:pharmacology; D015363:Quinolones; D013329:Structure-Activity Relationship; D059005:Topoisomerase II Inhibitors
chemical_list: D000900:Anti-Bacterial Agents; D011720:Pyrazoles; D015363:Quinolones; D059005:Topoisomerase II Inhibitors