发明名称 PREPARATION METHOD FOR SODIUM SALT OF THE 7/Z-2-(AMINETIAZOLILE-4)2-METOXYIMINOACETYLAMINE/-CEPHALOSPORNIC ACID
摘要 1. A method of producing 7-/Z-2-(2-aminothiazole-4-)-2- methoxyimino-acetylamino /cephalosporine acid sodium in D form by subjecting 7-/Z-2-(2-aminotiazolilo-4-)-2- methoxyimino-acetylamino /cephalosporin acid, its hydrate, methanol, ethanol or formic solvates or their mixture to the operation of the factor facilitating carrying out acid into sodium characterised in that as the factor facilitating carrying out acid into sodium, sodium hydroxide in aqueous or aqueous-organic solution is used, where lower aliphatic alcohol or cyclic ether mixing with water is used as an organic co-solvent, and the process is carried out at the temperature of 240-293 degrees K, and pH of the solution is within 5-8 units, and the final product is separated from the produced solution.
申请公布号 PL160229(B1) 申请公布日期 1993.02.26
申请号 PL19880276865 申请日期 1988.12.30
申请人 发明人
分类号 C07D;C07D501/34;(IPC1-7):C07D501/34 主分类号 C07D
代理机构 代理人
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