发明授权
- 专利标题: Process for manufacture of telmisartan
- 专利标题(中): 替米沙坦制造方法
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申请号: US13750551申请日: 2013-01-25
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公开(公告)号: US08993778B2公开(公告)日: 2015-03-31
- 发明人: Norbert Hauel , Rolf Dach , Helmut Heitger , Oliver Meyer
- 申请人: Norbert Hauel , Rolf Dach , Helmut Heitger , Oliver Meyer
- 申请人地址: DE Ingelheim
- 专利权人: Boehringer Ingelheim International GmbH
- 当前专利权人: Boehringer Ingelheim International GmbH
- 当前专利权人地址: DE Ingelheim
- 代理机构: Michael P. Morris
- 代理商 Edouard G. Lebel; Usha R. Patel
- 优先权: DE10314702 20030331
- 主分类号: C07D235/04
- IPC分类号: C07D235/04 ; C07D403/04 ; C07D235/20 ; C07D235/18
摘要:
A process for preparing telmisartan by reacting 2-n-propyl-4-methyl-6-(1′-methylbenzimidazol-2′-yl)benzimidazole with a compound of formula (IV) wherein Z is a leaving group, to obtain the compound 2-cyano-4′-[2″-n-propyl-4″-methyl-6″-(1′″-methylbenzimidazol-2′″-yl)benzimidazol-1″-ylmethyl]biphenyl, and subsequently hydrolyzing the nitrile function to obtain the acid function.
公开/授权文献
- US20130137878A1 PROCESS FOR MANUFACTURE OF TELMISARTAN 公开/授权日:2013-05-30
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