发明名称 |
6-ARYL AMINO PYRIDONE FORMAMIDE COMPOUND CRYSTAL AND PREPARATION METHOD THEREFOR |
摘要 |
Provided are 6-aryl amino pyridone formamide compound crystal and a preparation method therefor. In the present invention, 6-(2-chlorine-4-iodopheny amino)-N-(2-hydroxyl ethoxyl)-5-methyl-4-oxo-4,5-dihydrofuran[3,2-c]pyridine-7-formamide is dissolved in a polar aprotic solvent, a second solvent is added for recrystallization, and a crystal is obtained. The crystallization method is simple to operate and conducive for industrial production. The produced crystal has high purity, good stability, and is conducive for pharmaceutical production and storage. |
申请公布号 |
WO2016019867(A1) |
申请公布日期 |
2016.02.11 |
申请号 |
WO2015CN86118 |
申请日期 |
2015.08.05 |
申请人 |
CHIA TAI TIANQING PHARMACEUTICAL GROUP CO., LTD.;CENTAURUS BIOPHARMA CO., LTD. |
发明人 |
WANG, LULU;ZHANG, XIQUAN;LIU, FEI;ZHU, YIZHONG;GAO, CHAO;TANG, SONG;ZHU, BO;TANG, JIANQIU |
分类号 |
C07D491/048;A61K31/4355;A61P29/00;A61P35/00 |
主分类号 |
C07D491/048 |
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