| 发明名称 |
IMPROVED PROCESS FOR PREPARING XANTHINE DERIVATIVES, IN PARTICULAR 1,3-DIPROPYL-8-(3-OXOCYCLOPENTYL)-XATHINE |
| 摘要 |
The present invention relates to an improved preparation process for xanthines substituted in the 8-position via alkaline ring-closure reaction of the corresponding uracils in the presence of lithium hydroxide.
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| 申请公布号 |
CA2140434(A1) |
申请公布日期 |
1994.11.24 |
| 申请号 |
CA19942140434 |
申请日期 |
1994.05.18 |
| 申请人 |
BOEHRINGER INGELHEIM INTERNATIONAL GMBH |
发明人 |
KUEFNER-MUEHL, ULRIKE;LUETTKE, SVEN |
| 分类号 |
C07D319/08;C07D405/12;C07D473/06;(IPC1-7):C07D473/06;C07D519/00 |
主分类号 |
C07D319/08 |
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