发明名称 |
Process for preparing benzimidazole-type compounds |
摘要 |
The present invention relates to an improved process for the preparation of proton pump inhibitors of the benzimidazole-type such as rabeprazole, omeprazole, pantoprazole, lansoprazole and esome prazole, of general formula (1) by oxidation of the corresponding sulfide followed by extraction of the sulfone by-product with an aqueous alkaline solution at controlled pH.
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申请公布号 |
US6919459(B2) |
申请公布日期 |
2005.07.19 |
申请号 |
US20040483587 |
申请日期 |
2004.06.04 |
申请人 |
BROECKX RUDY LAURENT MARIA;DE SMAELE DIRK;LEURS STEFAN MARCEL HERMAN;VERBERCKMOES FILIP |
发明人 |
BROECKX RUDY LAURENT MARIA;DE SMAELE DIRK;LEURS STEFAN MARCEL HERMAN;VERBERCKMOES FILIP |
分类号 |
B01D11/02;C07D401/12;(IPC1-7):C07D401/12 |
主分类号 |
B01D11/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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