abstract |
The invention relates to new enantiomerically pure 7- (3-amino-1-pyrrolidinyl) -quinolone and - naphthyridonecarboxylic acids, processes for their preparation and antibacterial agents and feed additives containing them.n n n The quinolones or naphthyridones correspond to the general formula (I) in which R 1 , R 2 , R 3 , R 4 and A have the meaning given in the description. |