Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Fher S A Lab
Boehringer Ingelheim Espana SA
Original Assignee
Fher S A Lab
Laboratorios Fher SA
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Filing date
Publication date
Application filed by Fher S A Lab, Laboratorios Fher SAfiledCriticalFher S A Lab
Priority to ES518224ApriorityCriticalpatent/ES518224A0/en
Publication of ES8402312A1publicationCriticalpatent/ES8402312A1/en
Publication of ES518224A0publicationCriticalpatent/ES518224A0/en
New cephalosporin cpds. of formula (I), (in which R1 and R2 are 1-6C alkyl, R3 is 1-6C alkyl or allyl, D is ketoxy gp.) and their salts with organic or inorganic bases. They are made by reaction of a 7-amino cephalosporanic acid deriv. of formula (II), (in which D is as above, R4 is a labile gp.) with an acid of formula (III), (in whic h R1, R2 and R3 are as above) to give an intermediate prod. This is hydrolysed to give the final prod. (I). - Use is in prophylaxis and chemotherapy of human or animal infections.
ES518224A1982-12-151982-12-15
PROCEDURE FOR THE PREPARATION OF NEW CEPHALOSPORINS.
GrantedES518224A0
(en)
Process for preparing 7-(alpha-hydroxy-alpha-phenyl)acetamido-3-(1-methyl-1h-tetrazol-5-ylthiomethyl)-3-cephem-4-carboxylic acid and derivatives thereof
Lower alkanoyloxyalkyl esters and-2)ethers of 7-(2(2-furyl)-2-(alkoxyimino)-acetamido)-cephalosporin compounds,their preparation and pharmaceutical compositions containing them