SYNTHESIS OF CEFOTAXIME FROM DAMA (DIETHYL THIOPHOSPHORYL [(Z)-(2-AMINOTHIAZOL-4-YL)-2-(METHOXYIMINO) AND 7-ACA (7-AMINO CEPHALOSPORINIC ACID)Abstract
A simple procedure is reported for the synthesis of Cefotaxime Sodium from an isolable activated ester, diethyl thiophosphoryl [(Z)-(2-aminothiazol-4-yl)-2-(methoxyimino) acetate (DAMA) and 7-ACA (7-Aminocephalosporinic acid). DAMA was synthesized from ATMA [(Z)-2-(2-aminothiazol-4-yl)-2-methoxyimino acetic acid] and DHP [O, O-diethyl O-hydrogen phosphorothioate], which was treated with 7-ACA and chloroform. A 95% pure Cefotaxime acid was obtained; upon further treatment of Cefotaxime acid with 2-ethyl hexanoate, 98.4 % pure Cefotaxime Sodium was obtained. The synthesized material was identified by Infrared spectroscopy & validated High Performance Liquid Chromatographic (HPLC) method and also quantified by HPLC method.