Cephalosporin derivatives, and their application as antibiotics

The present invention relates to derivatives of the cephalosporin family, of formula: (I) in which: X is an oxygen atom or a sulfur atom n is zero, 1 or 2. R1, R2 and R3 each designate, a hydrogen atom or else R1 and R2 designate a hydrogen atom or a methyl group, and R3 designates a carboxyl or cyc...

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Bibliographic Details
Main Authors OLLIERO; DOMINIQUE, SALHI; ALI
Format Patent
LanguageEnglish
Published 21.08.1990
Subjects
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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Summary:The present invention relates to derivatives of the cephalosporin family, of formula: (I) in which: X is an oxygen atom or a sulfur atom n is zero, 1 or 2. R1, R2 and R3 each designate, a hydrogen atom or else R1 and R2 designate a hydrogen atom or a methyl group, and R3 designates a carboxyl or cyclopropyl group, or else R1 and R2 taken together with the carbon atom to which they are linked form a cyclobutyl or cyclopentyl group and R3 is a carboxyl group. B is the residue of a primary or secondary amine; their preparation process and application in therapeutics.
Bibliography:Application Number: US19880188073