| 发明名称 |
Process for preparing and purifying 1,7' -dimethyl-2' -propyl-2,5'-bi-1H-benzimidazole |
| 摘要 |
Disclosed is a process which can be used on an industrial scale for preparing and purifying 1,7'-dimethyl-2'-propyl-2,5'-bi-1H-benzimidazole in which the crude product is subjected to charcoal treatment.
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| 申请公布号 |
US2003139608(A1) |
申请公布日期 |
2003.07.24 |
| 申请号 |
US20030345773 |
申请日期 |
2003.01.16 |
| 申请人 |
BOEHRINGER INGELHEIM PHARMA GMBH & CO. KG |
发明人 |
BELZER WERNER;DACH ROLF;FACHINGER VOLKER;HEITZMANN MARKUS;SCHMIDT HARTMUT |
| 分类号 |
C07D235/18;(IPC1-7):C07D403/02 |
主分类号 |
C07D235/18 |
| 代理机构 |
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