Quinolone carboxylic acid derivatives and process for preparing

Details Quinolone carboxylic acid derivatives and process for preparing Quinolone carboxylic acid derivatives and process for preparing

1994-07-20

1996-03-12

Richter, Johann

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

546123, 546156, A61K 31405, C07D47102

Patent

active

054986150

ABSTRACT:
The present invention relates to novel quinolone carboxylic acid derivatives having useful antibacterial activities of formula (I): ##STR1## wherein, R.sub.1, R.sub.2, and R.sub.3, which may be the same or different, are each hydrogen or a halogen atom, or a lower alkyl group optionally substituted with an amino or a hydroxy group;

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