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  • Title: [Studies on pyridonecarboxylic acids as antibacterial agents. XII. Synthesis and antibacterial activity of 6-chloro-1-cyclopropyl-7-(1-piperazinyl)-1, 4-dihydro-4-oxo-quinoline-3-carboxylic acid and analogues].
    Author: Li XH, Tian ZM, Miao H, Yu LX, Guo HY.
    Journal: Yao Xue Xue Bao; 1997 Nov; 32(11):844-51. PubMed ID: 11596203.
    Abstract:
    Sixteen pyridonecarboxylic acids, characterized by having a chlorine atom and a cyclopropyl group at the 6- and 1-position respectively, substituted amino groups at the 7-position, and some substituted groups (chloro, nitro, amino, dimethylamino) at the 8-position, were synthesized. In vitro antibacterial activities of these compounds were tested. The fluoroquinolones ciprofloxacin and norfloxacin were included for comparative purposes. The results showed that both 11 Ca and 11 Cc were 4-8 times more active than ciprofloxacin and norfloxacin against S. aureus-15 in vitro, but with the same activity as ciprofloxacin against E. coli-22 and P. aeruginosa-29.
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