专利详细信息
| 专利号 |
 |
| 专利标题 | Triphosgene method for synthesizing benzene sulphanilamide, intermediate of glimepiride, drug for Type ii Diabetes Mellitus |
| 专利权人 | NANTONG HUAFENG CHEMICAL CO LTD; |
| 发明人 | WANG DEFENG; WANG BINGCAI; ZHU XIAOFEI; |
| 申请号 | CN20131228829 |
| 申请日 | 2013/6/9 |
| 公开日 | 2013/12/4 |
| 优先权号 |
CN20131228829 20130609 |
| IPC | C07D020738; |
| 专利类型 | |
| 法律状态查询 | 查看法律状态 |
The invention discloses a triphosgene method for synthesizing benzene sulphanilamide, the intermediate of glimepiride, a drug for Type ii Diabetes Mellitus. Triphosgene is slowly dropped into a solution which contains phenethylamine and 3-ethyl-4-methyl pyrroline ketone, at a controlled temperature, so that N-[2-(3-ethyl-4-methyl-2-oxidation-3-pyrroline-1-formylamino)ethyl]-benzene (3) is obtained
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