3-pyrrolidine methanamines wherein the alpha-carbon is substituted by 1 or 2 lower alkyl groups which are intermediates for pyridone-carboxylic acid derivatives

3-pyrrolidine methanamines wherein the alpha-carbon is substituted by 1 or 2 lower alkyl groups which are intermediates for pyridone-carboxylic acid derivatives

This invention provides novel pyridonecarboxylic acid derivatives having a quite high antimicrobial activity. The derivatives have the following formula: [I] wherein R1, R2 and R3 represent each a hydrogen or C1-C6 alkyl group; R4 represents an ethyl, 2-fluoroethyl, vinyl, isopropyl, isopropenyl or...

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Bibliographische Detailangaben
Hauptverfasser: ATARASHI, SHOHGO, HAYAKAWA, ISAO
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS
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Beschreibung
Zusammenfassung:This invention provides novel pyridonecarboxylic acid derivatives having a quite high antimicrobial activity. The derivatives have the following formula: [I] wherein R1, R2 and R3 represent each a hydrogen or C1-C6 alkyl group; R4 represents an ethyl, 2-fluoroethyl, vinyl, isopropyl, isopropenyl or cyclopropyl group; and X represents CH, C-F, C-Cl or N characterized in that R2 and R3 are not hydrogen at the same time.