[EN] AN IMPROVED PROCESS FOR THE PREPARATION OF CEFOXITIN<br/>[FR] PROCEDE AMELIORE DE PREPARATION DE CEFOXITINE
申请人:ORCHID CHEMICALS & PHARM LTD
公开号:WO2004083217A1
公开(公告)日:2004-09-30
The present invention relates to an improved process for the preparation of cefoxitin of formula (I).
本发明涉及一种改进的制备化学式(I)的头孢噻肟的方法。
PROCESS FOR PREPARING SODIUM CEFOXITIN
申请人:MANCA Antonio
公开号:US20070027314A1
公开(公告)日:2007-02-01
Cefalotin is methoxylated in position 7α, desacetylated and then carbamoylated in position 3, to provide acid cefoxitin without any isolation of intermediate products. The acid cefoxitin is then transformed into the sodium salt by means of ion exchange resin.