Quinolizinone type compounds

摘要

Antibacterial compounds having the formula <IMAGE> (I) and the pharmaceutically acceptable salts, esters and amides thereof, selected preferred examples of which include those compounds wherein A is=CR6-; R1 is cycloalkyl of from three to eight carbon atoms or substituted phenyl; R2 is selected from the group consisting of <IMAGE> <IMAGE> R3 is halogen; R4 is hydrogen, loweralkyl, a pharmaceutically acceptable cation, or a prodrug ester group; R5 is hydrogen, loweralkyl, halo(loweralkyl), or -NR13R14; and R6 is halogen, loweralkyl, halo(loweralkyl), hydroxy-substituted loweralkyl, loweralkoxy(loweralkyl), loweralkoxy, or amino(loweralkyl), as well as pharmaceutical compositions containing such compounds and the use of the same in the treatment of bacterial infections.