专利详细信息
专利号 | CN102898442A |
专利标题 | The process for purification of ceforanide |
专利权人 | Henan Zhongshuai Pharma Ceutical Sci & Tech Development Co.,ltd.; |
发明人 | |
申请号 | CN20121411677 |
申请日 | 2012/10/25 |
公开日 | 2013/1/30 |
优先权号 | |
IPC | C07D50136000; |
专利类型 | |
法律状态查询 | 查看法律状态 |
The invention provides a kind of process for purification that can obtain the high purity ceforanide with the reaction of ceforanide crude product and dicyclohexyl amine utilize impurity 3-[(1-carboxymethyl in the crude product) tetrazole-5-sulfydryl] methyl-7-amino-4-Cephalosporanic acid (ceforanide intermediate A CATAA) dicyclohexyl amine salt makes with extra care the extraordinarily thick product of cephalo thunder with ceforanide dicyclohexyl amine salt different solubility in organic solvent-aqueous solution.Ceforanide process for purification of the present invention has avoided toxicity very large the arylamine class material N that carinogenicity is very strong the use of accelerine make ceforanide purity from 70 ~ 85% of crude product bring up to after refining more than 99.5% purity improves greatly yield is better and starting material are easy to get and is convenient to the realization of ceforanide suitability for industrialized production.
没有相关的数据
没有相关的数据
暂无附图
注:除CN专利外,本系统默认提供的所有其他中文标题和摘要来自机器翻译。