发明名称 |
Polymorphs of esomeprazole salts |
摘要 |
The present invention relates to a high assayed esomeprazole magnesium dihydrate substantially free of its trihydrate form. The present invention further provides an improved and commercially viable process for preparation of high assayed esomeprazole magnesium dihydrate substantially free of its trihydrate form. The present invention also provides an improved process for preparation of pure amorphous esomeprazole magnesium. The present invention further provides an improved and commercially viable process for preparation of substantially enantiomerically pure esomeprazole in neutral form or as a pharmaceutically acceptable salt or as its solvates including hydrates. The present invention also provides solid form of esomeprazole calcium salt, its polymorphs (form 1, form 2 and amorphous form) and processes for their preparation thereof. |
申请公布号 |
US8106210(B2) |
申请公布日期 |
2012.01.31 |
申请号 |
US20070374347 |
申请日期 |
2007.10.08 |
申请人 |
PARTHASARADHI REDDY BANDI;RATHNAKAR REDDY KURA;RAJI REDDY RAPOLU;MURALIDHARA REDDY DASARI;SRINIVASA REDDY PUCHAKAYALA;HETERO DRUGS LIMITED |
发明人 |
PARTHASARADHI REDDY BANDI;RATHNAKAR REDDY KURA;RAJI REDDY RAPOLU;MURALIDHARA REDDY DASARI;SRINIVASA REDDY PUCHAKAYALA |
分类号 |
C07D401/12 |
主分类号 |
C07D401/12 |
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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