Chiral DNA Gyrase Inhibitors. 3. Probing the Chiral Preference of the Active Site of DNA Gyrase. Synthesis of 10-Fluoro-6-methyl-6,7-dihydro-9-piperazinyl- 2<i>H</i>-benzo[<i>a</i>]quinolizin-20-one-3-carboxylic Acid Analogues
作者:Robert A. Fecik、Pratik Devasthale、Segaran Pillai、Ali Keschavarz-Shokri、Linus Shen、Lester A. Mitscher
DOI:10.1021/jm0401356
日期:2005.2.1
R-6-methyl-6,7-dihydro-2H-benzo[a]quinolizin-2-one-3-carboxylic acids (12 and 22) were synthesized by an unambiguous route from optically active norephedrines, and their antibacterial potencies were measured. Against Gram-negative microorganisms and DNA gyrase a preference for S-absolute configuration was found whereas R-absolute stereochemistry was more active against Gram-positives. These results are in