Georgopapadakou NH, Dix BA, Angehrn P, Wick A, Olson GL. Monocyclic and tricyclic analogs of quinolones: mechanism of action.
Antimicrob Agents Chemother 1987;
31:614-6. [PMID:
3037999 PMCID:
PMC174788 DOI:
10.1128/aac.31.4.614]
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Abstract
The mode of action of Ro 13-5478 and Ro 14-9578, monocyclic and tricyclic quinolone analogs, respectively, was examined for Escherichia coli and Staphylococcus aureus. The compounds showed antibacterial activity and effects on cell morphology, replicative DNA biosynthesis, and gyrase-catalyzed DNA supercoiling that were comparable to those shown by nalidixic acid and by oxolinic acid compounds. The results suggest that their site of action is DNA gyrase and that a bicyclic quinolone nucleus is not essential for activity.
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