Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1995-03-20
1995-12-19
Dentz, Bernard
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C07D20709
Patent
active
054769507
ABSTRACT:
This invention provides novel pyridonecarboxylic acid derivatives having a quite high antimicrobial activity. The derivatives have the following formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 represent each a hydrogen or C.sub.1-C.sub.6 alkyl group; R.sup.4 represents an ethyl, 2-fluoroethyl, vinyl, isopropyl, isopropenyl or cyclopropyl group; and X represents CH, C--F, C--Cl or N
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Atarashi Shohgo
Hayakawa Isao
Daiichi Seiyaku Co., Ltd.
Dentz Bernard
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