A-aryl-4-quinolone-3-carboxylic acids
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United States of America Patent
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Jan 1, 1991
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N/A
app pub date -
Nov 6, 1989
filing date -
May 15, 1985
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Expired
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Abstract
Antibacterially active and animal growth promoting novel 1-aryl-4-quinolone-3-carboxylic acids of the formula ##STR1## in which X is halogen or nitro, X.sup.2 is halogen, R is optionally substituted phenyl, and A is halogen or optionally substituted piperazine or pyrrolidine, or pharmaceutically useable hydrates, acid additions salts, alkali metal, alkaline earth metal, silver or guanidinium salts thereof, and/or esters thereof.
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