A METHOD OF NEW 7/AZABICYCLOALKILO/-QUINOLO AND -NAPHTYRYDONOCARBOXYL ACID DERIVATIVES PRODUCTION AND ANIMAL FODDER AND FODDER ADDITIVES

摘要

Novel 7-(azabicycloalkyl) quinolonecarboxylic acid and -naphthyridonecarboxylic acid derivatives of the formula (I) IMAGE in which R1, R2, R3, X1 and A have the meaning given in the description, processes for their preparation and antibacterial agents and food additives containing them.