The invention relates to antibacterial compounds of formula Iwherein R1represents halogen or alkoxy U and W each represent N, V represents CH and R2represents H or F, or U and V each represent CH, W represents N and R2represents H or F, or U represents N, V represents CH, W represents CH or CRaand R2represents H, or also, when W represents CH, may represent F Rarepresents CH2OH or alkoxycarbonyl A represents the group CH=CH-B, a binuclear heterocyclic system D, a phenyl group which is mono substituted in position 4 by alkyl, or a phenyl group which is disubstituted in positions 3 and 4, wherein each of the substituents is independently selected from alkyl and halogen, B representing a mono- or di-substituted phenyl group wherein each substituent is a halogen atom and D representing the groupwherein Z represents CH or N, and Q represents O or S and to salts of such compounds.本發明係關於式I抗細菌化合物其中R1表示鹵素或烷氧基;U與W各表示N,V表示CH,且R2表示H或F,或U與V各表示CH,W表示N,且R2表示H或F,或U表示N,V表示CH,W表示CH或CRa,且R2表示H,或者,當W表示CH時,可表示F;Ra表示CH2OH或烷氧羰基;A表示基團CH=CH-B,雙核雜環系統D,在位置4上被烷基單取代之苯基,或在位置3與4上經二取代之苯基,其中各取代基係獨立選自烷基與鹵素,B表示單-或二取代之苯基,其中各取代基為鹵原子,且D表示以下基團其中Z表示CH或N,且Q表示O或S;及關於此種化合物之鹽。
