ro23-6240/000

hyl-1-piperazinyl)-4-oxo-

3-quinolinecarboxylicacid,1,4-dihydro-6,8-difluoro-1-(2-fluoroethyl)-7-(4-met

6,8-difluoro-1-(2-fluoroethyl)-7-(4-methylpiperazin-1-yl)-4-oxoquinoline-3-carboxylic acid