7-(1-Pyrrolidinyl)-3-quinolone- and -naphthyridone-carboxylic acid derivatives, processes for their preparation and substituted (oxa) diazabicyclooctanes and -nonanes as intermediate products for their preparation, and antibacterial agents and feed additives containing them

摘要

7-(1-Pyrrolidinyl) -3-quinolone- and -naphthyridone-carboxylic acid derivatives, processes for their preparation and substituted (oxa) diazabicyclooctanes and -nonanes as intermediate products for their preparation, and antibacterial agents and feed additives containing them. This invention relates to 7-(1-pyrrolidinyl)-3-quinolone- and -naphthyridone-carboxylic acid derivatives of the formula I [FORMULA I] in which X1, X², R1, R², R3 and A have the meanings given in the description, processes for their preparation and substituted (oxa) diazabicyclooctanes and -nonanes as intermediate products for their preparation, and antibacterial agents and feed additives containing them.