| 发明名称 |
PROCESS FOR THE PREPARATION OF CHIRAL 8-(3-AMINOPIPERIDIN-1-YL)-XANTHINES |
| 摘要 |
The invention relates to an improved process for preparing enantiomerically pure 8-(3-aminopiperidin-1-yl)-xanthines. |
| 申请公布号 |
US2017029402(A1) |
申请公布日期 |
2017.02.02 |
| 申请号 |
US201615290454 |
申请日期 |
2016.10.11 |
| 申请人 |
Boehringer Ingelheim International GmbH |
发明人 |
PFRENGLE Waldemar;PACHUR Thorsten;NICOLA Thomas;DURAN Adil |
| 分类号 |
C07D401/04 |
主分类号 |
C07D401/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A process for preparing (R)-3-(phthalimido)piperidine, comprising:
reacting rac-3-aminopiperidine with phthalic anhydride; and precipitating (R)-3-(phthalimido)piperidine by adding D-tartaric acid. |
| 地址 |
Ingelheim am Rhein DE |
