Quinolonecarboxylic acid derivatives and pharmaceutical preparations thereof for treatment of an allergic disease of the respiratory tract
AssigneeSchering Corporation
InventorsRudolf Albrecht, Eberhard Schroder, Irmgard Bottcher
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Abstract
Quinolonecarboxylic acid derivatives of the formula ##STR1## wherein the grouping ##STR2## is independently in the 6-, 7- or 8-position of each of the quinolone residues; m and n independently are each 1-4; R.sub.1 is hydrogen or alkyl of 1-6 carbon atoms; R.sub.2 is hyrogen, alkanoyl of 1-8 carbon atoms or benzoyl; and X is hydrogen, alkyl of 1-6 carbon atoms or the cation of a base which produces a physiologically acceptable salt with the quinolonecarboxylic acid, have valuable pharmacological properties.
Claims15
A quinolone compound of the formula ##STR10## wherein m and n independently are each 1-4;
- R.sub.1 is hydrogen or alkyl of 1-6 carbon atoms;
- R.sub.2 is hydrogen, alkanoyl of 1-8 carbon atoms or benzoyl;
- and
- X is hydrogen or alkyl of 1-6 carbon atoms
- or, for those compounds wherein X is H, the pharmaceutically acceptable salts thereof with a base.
Dependencies are inferred from the claim text.