7-(1-PYRROLYL)DERIVATIVES OF SUBSTITUTED 1-ETHYL-1,4-DIHYDRO-4-OXOQUINOLINE-3-CARBOXYLIC ACIDS AND SUBSTITUTED 1-ETHYL-1,4-DIHYDRO-4-OXO-1,8-NAPHTHYRIDINE-3-CARBOXYLIC ACIDS,THEIR PREPARATION AND THEIR APPLICATION AS DRUGS

摘要

The present invention relates to new derivatives of 7-(1-pyrrolyl)-1-ethyl-1,4-dihydro-4-oxoquinoline-3-carboxylic and 7-(1-pyrrolyl)-1-ethyl-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxyli c acids of general formula I: IMAGE in which X represents a carbon atom or a nitrogen atom, and R represents a hydrogen atom or a fluorine atom, and their physiologically acceptable alkali metal or alkaline-earth metal salts.