-
公开(公告)号:US20070066824A1
公开(公告)日:2007-03-22
申请号:US11534226
申请日:2006-09-22
IPC分类号: C07D405/02
CPC分类号: C07D405/12
摘要: A process for preparing alfuzosin or a salt thereof, which minimizes the concentration of an N1-(4-amino-6,7-dimethoxyquinazolin-2-yl)-N1-methyl-N 2-(4-amino-6,7-dimethoxyquinazolin-2-yl)-propane-1,3-diamine impurity in the product.
摘要翻译: 制备阿夫唑嗪或其盐的方法,其使N 1 - (4-氨基-6,7-二甲氧基喹唑啉-2-基)-N 1 SUP的浓度最小化 (4-氨基-6,7-二甲氧基喹唑啉-2-基) - 丙烷-1,3-二胺杂质。
-
公开(公告)号:US20070049756A1
公开(公告)日:2007-03-01
申请号:US11467951
申请日:2006-08-29
IPC分类号: C07D405/02
CPC分类号: C07D405/12
摘要: Alfuzosin hydrochloride crystalline and amorphous polymorphic forms and processes for preparing them.
摘要翻译: 盐酸阿夫唑嗪结晶和无定形多晶型及其制备方法。
-
公开(公告)号:US07919633B2
公开(公告)日:2011-04-05
申请号:US12051059
申请日:2008-03-19
申请人: Raghupathi Reddy Anumula , Goverdhan Gilla , Sampath Alla , Thirupathi Reddy Akki , Yakambram Bojja
发明人: Raghupathi Reddy Anumula , Goverdhan Gilla , Sampath Alla , Thirupathi Reddy Akki , Yakambram Bojja
IPC分类号: C07D231/12
CPC分类号: C07D231/12 , C07C311/39
摘要: There is provided a process for preparation of celecoxib by reacting 4,4,4-trifluoro-1-[4-(methyl)phenyl]butane-1,3-dione with 4-sulphonamidophenylhydrazine or its salt in a solvent medium that contains an alkyl ester. There is also provided a process for the purification of celecoxib using aromatic hydrocarbon solvents.
摘要翻译: 提供了一种通过使4,4,4-三氟-1- [4-(甲基)苯基]丁烷-1,3-二酮与4-磺酰胺基苯肼或其盐在含有 烷基酯。 还提供了使用芳烃溶剂来净化塞来昔布的方法。
-
公开(公告)号:US20080234491A1
公开(公告)日:2008-09-25
申请号:US12051059
申请日:2008-03-19
申请人: Raghupathi Reddy Anumula , Goverdhan Gilla , Sampath Alla , Thirupathi Reddy Akki , Yakambram Bojja
发明人: Raghupathi Reddy Anumula , Goverdhan Gilla , Sampath Alla , Thirupathi Reddy Akki , Yakambram Bojja
IPC分类号: C07D231/14 , C07C243/10 , C07C311/16
CPC分类号: C07D231/12 , C07C311/39
摘要: There is provided a process for preparation of celecoxib by reacting 4,4,4-trifluoro-1-[4-(methyl)phenyl]butane-1,3-dione with 4-sulphonamidophenylhydrazine or its salt in a solvent medium that contains an alkyl ester. There is also provided a process for the purification of celecoxib using aromatic hydrocarbon solvents.
摘要翻译: 提供了一种通过使4,4,4-三氟-1- [4-(甲基)苯基]丁烷-1,3-二酮与4-磺酰胺基苯肼或其盐在含有 烷基酯。 还提供了使用芳烃溶剂来净化塞来昔布的方法。
-
公开(公告)号:US20090149662A1
公开(公告)日:2009-06-11
申请号:US12328374
申请日:2008-12-04
申请人: Raghupathi Reddy Anumula , Goverdhan Gilla , Sampath Alla , Sreenivasulu Kurella , Janardana Sarma Ramachandra Kopparapu , Rama Krishna Venkata Medisetti , Srinivasula Reddy Maddula
发明人: Raghupathi Reddy Anumula , Goverdhan Gilla , Sampath Alla , Sreenivasulu Kurella , Janardana Sarma Ramachandra Kopparapu , Rama Krishna Venkata Medisetti , Srinivasula Reddy Maddula
IPC分类号: C07D209/18 , C07D403/06 , C07D403/12 , G01N21/00
CPC分类号: C07D209/18 , C07D403/06 , C07D403/12
摘要: An improved process for the preparation of substantially pure zafirlukast and pharmaceutical compositions thereof.
摘要翻译: 一种用于制备基本上纯的扎非司酮及其药物组合物的改进方法。
-
-
-
-