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公开(公告)号:US20070054914A1
公开(公告)日:2007-03-08
申请号:US11469920
申请日:2006-09-05
申请人: Venkata Naga Brahmeswara Mandava , Sreenadhacharyulu Kandala , Mukunda Jambula , Raveendra Chinta
发明人: Venkata Naga Brahmeswara Mandava , Sreenadhacharyulu Kandala , Mukunda Jambula , Raveendra Chinta
IPC分类号: C07D487/02 , A61K31/496
CPC分类号: C07D487/04
摘要: Eszopiclone is prepared by reacting zopiclone with an enatiomerically pure di-p-toluoyl tartaric acid, recovering a solid salt, and reacting a solid salt with a base. Zopiclone is prepared by reacting 6-(5-chloropyrid-2-yl)-5-hydroxy-7-oxo-5,6-dihydropyrrolo[3,4-b]-pyrazine with 1-chlorocarbonyl-4-methylpiperazine hydrochloride.
摘要翻译: 佐佐匹克隆是通过将佐匹克隆与对映异构纯的对二甲苯酰酒石酸反应制备的,回收固体盐,并使固体盐与碱反应。 佐匹克隆通过6-(5-氯吡啶-2-基)-5-羟基-7-氧代-5,6-二氢吡咯并[3,4-b] - 吡嗪与1-氯羰基-4-甲基哌嗪盐酸盐反应制备。
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公开(公告)号:US08058438B2
公开(公告)日:2011-11-15
申请号:US12339253
申请日:2008-12-19
申请人: Venkata Naga Brahmeswara Rao Mandava , Sreenadhacharyulu Kandala , Mukunda Reddy Jambula , Raveendra Reddy Chinta
发明人: Venkata Naga Brahmeswara Rao Mandava , Sreenadhacharyulu Kandala , Mukunda Reddy Jambula , Raveendra Reddy Chinta
IPC分类号: C07D487/02
CPC分类号: C07D487/04
摘要: Eszopiclone is prepared by reacting zopiclone with an enatiomerically pure di-p-toluoyl tartaric acid, recovering a solid salt, and reacting a solid salt with a base. Zopiclone is prepared by reacting 6-(5-chloropyrid-2-yl)-5-hydroxy-7-oxo-5,6-dihydropyrrolo[3,4-b]-pyrazine with 1-chlorocarbonyl-4-methylpiperazine hydrochloride.
摘要翻译: 佐佐匹克隆是通过将佐匹克隆与对映异构纯的对二甲苯酰酒石酸反应制备的,回收固体盐,并使固体盐与碱反应。 佐匹克隆通过6-(5-氯吡啶-2-基)-5-羟基-7-氧代-5,6-二氢吡咯并[3,4-b] - 吡嗪与1-氯羰基-4-甲基哌嗪盐酸盐反应制备。
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公开(公告)号:US20070098788A1
公开(公告)日:2007-05-03
申请号:US11553342
申请日:2006-10-26
申请人: Subhash Gore , Sudeep Agrawal , Abhijeet Upadhye , Srinivasulu Rangineni , Sivakumar Bommareddy , Srinivas Gade , Basappa Nagaraj , Gautam Bakshi , Surjit Das , Satish Jain , Surya Devarakonda , Bharath Deevireddy , Eswaraiah Sajja , Venkata Naga Kali Veturi , Sreenadhacharyulu Kandala , Gurvinder Singh , Indu Bhushan , Mailatur Mohan
发明人: Subhash Gore , Sudeep Agrawal , Abhijeet Upadhye , Srinivasulu Rangineni , Sivakumar Bommareddy , Srinivas Gade , Basappa Nagaraj , Gautam Bakshi , Surjit Das , Satish Jain , Surya Devarakonda , Bharath Deevireddy , Eswaraiah Sajja , Venkata Naga Kali Veturi , Sreenadhacharyulu Kandala , Gurvinder Singh , Indu Bhushan , Mailatur Mohan
IPC分类号: A61K31/519 , A61K9/20
CPC分类号: A61K9/1664 , A61K9/146 , A61K9/1635 , A61K9/2013 , A61K9/205 , A61K31/519
摘要: Pharmaceutical compositions comprising non-benzodiazepine hypnotic drugs or their pharmaceutically acceptable salts, solvates, enantiomers or mixtures and processes for preparing the same. The invention also includes immediate release and extended release pharmaceutical compositions comprising non-benzodiazepine hypnotic drugs, useful for sleep induction and sleep maintenance.
摘要翻译: 包含非苯并二氮卓催眠药物或其药学上可接受的盐,溶剂合物,对映异构体或混合物的药物组合物及其制备方法。 本发明还包括用于睡眠诱导和睡眠维持的包含非苯二氮卓催眠药物的立即释放和缓释药物组合物。
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公开(公告)号:US07476737B2
公开(公告)日:2009-01-13
申请号:US11469920
申请日:2006-09-05
申请人: Venkata Naga Brahmeswara Rao Mandava , Sreenadhacharyulu Kandala , Mukunda Reddy Jambula , Raveendra Reddy Chinta
发明人: Venkata Naga Brahmeswara Rao Mandava , Sreenadhacharyulu Kandala , Mukunda Reddy Jambula , Raveendra Reddy Chinta
IPC分类号: C07D487/02
CPC分类号: C07D487/04
摘要: Eszopiclone is prepared by reacting zopiclone with an enatiomerically pure di-p-toluoyl tartaric acid, recovering a solid salt, and reacting a solid salt with a base. Zopiclone is prepared by reacting 6-(5-chloropyrid-2-yl)-5-hydroxy-7-oxo-5,6-dihydropyrrolo[3,4-b]-pyrazine with 1-chlorocarbonyl-4-methylpiperazine hydrochloride.
摘要翻译: 佐佐匹克隆是通过将佐匹克隆与对映异构纯的对二甲苯酰酒石酸反应制备的,回收固体盐,并使固体盐与碱反应。 佐匹克隆通过6-(5-氯吡啶-2-基)-5-羟基-7-氧代-5,6-二氢吡咯并[3,4-b] - 吡嗪与1-氯羰基-4-甲基哌嗪盐酸盐反应制备。
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公开(公告)号:US20090099359A1
公开(公告)日:2009-04-16
申请号:US12339253
申请日:2008-12-19
申请人: Venkata Naga Brahmeswara Rao Mandava , Sreenadhacharyulu Kandala , Mukunda Reddy Jambula , Raveendra Reddy Chinta
发明人: Venkata Naga Brahmeswara Rao Mandava , Sreenadhacharyulu Kandala , Mukunda Reddy Jambula , Raveendra Reddy Chinta
IPC分类号: C07D487/02
CPC分类号: C07D487/04
摘要: Eszopiclone is prepared by reacting zopiclone with an enatiomerically pure di-p-toluoyl tartaric acid, recovering a solid salt, and reacting a solid salt with a base. Zopiclone is prepared by reacting 6-(5-chloropyrid-2-yl)-5-hydroxy-7-oxo-5,6-dihydropyrrolo[3,4-b]-pyrazine with 1-chlorocarbonyl-4-methylpiperazine hydrochloride.
摘要翻译: 佐佐匹克隆是通过将佐匹克隆与对映异构纯的对二甲苯酰酒石酸反应制备的,回收固体盐,并使固体盐与碱反应。 佐匹克隆通过6-(5-氯吡啶-2-基)-5-羟基-7-氧代-5,6-二氢吡咯并[3,4-b] - 吡嗪与1-氯羰基-4-甲基哌嗪盐酸盐反应制备。
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