Carbacephem β-lactam antibiotics having chemical structures (I) and (II) are disclosed: including stereoisomers, pharmaceutically acceptable salts, esters and prodrugs thereof, wherein Ar2, R1, R2 and R6 are as defined herein. The compounds are useful for the treatment of bacterial infections, in particular those caused by methicillin-resistant Staphylococcus spp.
[EN] CARBACEPHEM ß-LACTAM ANTIBIOTICS<br/>[FR] ANTIBIOTIQUES BÊTA-LACTAMES À CARBACÉPHÈME
申请人:ACHAOGEN INC
公开号:WO2009055696A1
公开(公告)日:2009-04-30
Carbacephem β-lactam antibiotics having the following chemical structures (I) and (II) are disclosed, including stereoisomers, pharmaceutically acceptable salts, esters and prodrugs thereof, wherein Ar2, R1, R2 and R3 are as defined herein. The compounds are useful for the treatment of bacterial infections, in particular those caused by methicillin-resistant Staphylococcus spp.
An efficient synthesis of cephalosporin antibiotic, cefozopran is described. The present process does not involve chromatographic purification for isolation and is cost-effective and amenable to large-scale synthesis.
[EN] PROCESSES FOR THE PREPARATION OF CEFOZOPRAN, ITS SALTS AND POLYMORPHIC FORMS THEREOF<br/>[FR] PROCÉDÉS POUR L'ÉLABORATION DU CEFOZOPRAN, DE SES SELS, ET DE CERTAINES DE SES FORMES POLYMORPHES
申请人:RANBAXY LAB LTD
公开号:WO2010089729A1
公开(公告)日:2010-08-12
The present invention relates to processes for the preparation of cefozopran of Formula (I), its salts and polymorphic forms thereof.