[EN] PROCESS FOR THE PURIFICATION OF AZITHROMYCIN BY SEPARATION FROM ITS THERMAL DEGRADATION PRODUCTS AND/OR ISOMERS [FR] PROCÉDÉ DE PURIFICATION D'AZITHROMYCINE PAR SÉPARATION DE SES PRODUITS DE DÉGRADATION THERMIQUES ET/OU ISOMÈRES
The invention relates to derivatives of azithromycin, processes for the manufacture thereof and pharmaceutical compositions thereof preferably together with azithromycin.
本发明涉及阿奇霉素衍生物,其制造方法和制备方法,以及与阿奇霉素一起制备的制药组合物。
[EN] PROCESS FOR THE PURIFICATION OF AZITHROMYCIN BY SEPARATION FROM ITS THERMAL DEGRADATION PRODUCTS AND/OR ISOMERS<br/>[FR] PROCÉDÉ DE PURIFICATION D'AZITHROMYCINE PAR SÉPARATION DE SES PRODUITS DE DÉGRADATION THERMIQUES ET/OU ISOMÈRES
申请人:SHIFA PHARMED IND GROUP CO
公开号:WO2011015219A1
公开(公告)日:2011-02-10
The present invention relates to methods for improving the purity of azithromycin, preferably by purifying azithromycin from degradation products and/or isomers. The invention describes a degradation product of azithromycin which may be produced during drying and/or storage of azithromycin and relates to methods of removing the degradation product(s). The invention further relates to a method for preparing azithromycin dihydrate from crude azithromycin containing the isomer azithromycin B. The invention furthermore relates to a combined process for making azithromycin dihydrate which combines the method for the purification of azithromycin from degradation products with the method for making azithromycin dihydrate which removes the isomer azithromycin B.