发明授权
US4292317A 1,4-Dihydro-quinoline-3-carboxylic acid derivatives, process for their preparation and compositions containing them 失效
1,4-二氢 - 喹啉-3-羧酸衍生物,其制备方法和含有它们的组合物

1,4-Dihydro-quinoline-3-carboxylic acid derivatives, process for their
preparation and compositions containing them
摘要:
New 7-dialkylamino-1-substituted-6-halogeno-4-oxo-1,4-dihydroquinoline-3 carboxylic acids of the formula: ##STR1## wherein the R.sub.1 substituent is methyl, ethyl, vinyl or allyl and non-toxic pharmaceutically acceptable acid addition salts thereof. These compounds are useful as antibacterial agents. Also disclosed are processes for preparing the compounds.
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