Quinolone- and naphthyridone carboxylic acid derivatives,...

Details Quinolone- and naphthyridone carboxylic acid derivatives,... Quinolone- and naphthyridone carboxylic acid derivatives,...

C - Chemistry, Metallurgy

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C07D 401/04 (2006.01) A61K 31/4375 (2006.01) A61K 31/4709 (2006.01) C07D 207/12 (2006.01) C07D 211/42 (2006.01) C07D 211/48 (2006.01) C07D 405/14 (2006.01) C07D 455/04 (2006.01) C07D 471/04 (2006.01) C07D 487/10 (2006.01) C07D 491/10 (2006.01) C07D 498/06 (2006.01) C07D 498/10 (2006.01) C07D 513/10 (2006.01) C07D 519/00 (2006.01)

Patent

CA 1341161

An antibacterially active quinolone or naphthyridonecarboxylic acid derivative of the formula (see formula I) in which R1 stands for various organic radical, R2 stands for hydrogen, alkyl having 1 to 4 carbon atoms or (5-methyl-2-oxo-1,3-dioxol-4-yl)-methyl, R3 stands for hydrogen or amino, R4 stands for a radical of the formula (see formula II) and wherein A stands for N or C-R5, R5 stands for hydrogen, halogen methyl, cyano or nitro or else together with R1 can form a bridge of the structure (see formula III) 2/2 or a pharmaceutically utilizable hydrate, acid addition salt, alkali metal salt, alkaline earth metal salt, silver salt or guanidiniunu salt of the carboxylic acid when R2 is hydrogen.

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