发明授权
- 专利标题: Process for the preparation of esomeprazole magnesium dihydrate
- 专利标题(中): 艾美拉唑镁二水合物的制备方法
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申请号: US12527967申请日: 2008-02-21
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公开(公告)号: US08394963B2公开(公告)日: 2013-03-12
- 发明人: Dharmaraj Ramachandra Rao , Rajendra Narayanrao Kankan , Srinivas Laxminarayan Pathi , Gopalakrishna Sumana Bangalore
- 申请人: Dharmaraj Ramachandra Rao , Rajendra Narayanrao Kankan , Srinivas Laxminarayan Pathi , Gopalakrishna Sumana Bangalore
- 申请人地址: IN Mumbai
- 专利权人: Cipla Limited
- 当前专利权人: Cipla Limited
- 当前专利权人地址: IN Mumbai
- 代理机构: Conley Rose, P.C.
- 代理商 Rodney B. Carroll
- 优先权: IN348/MUM/2007 20070221
- 国际申请: PCT/GB2008/000062 WO 20080221
- 国际公布: WO2008/102145 WO 20080828
- 主分类号: C07D401/12
- IPC分类号: C07D401/12
摘要:
A process for preparing Form A of (S)-5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl) -methyl]sulfinyl]-1H-benzimidazole magnesium dihydrate, processes for preparing various intermediates useful in the preparation of Form A of (S)-5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methyl]sulfinyl]-1H-benzimidazole magnesium dihydrate and a novel polymorphic Form II of 5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methyl]thio]-1H-benzimidazole.
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