Process and intermediate for certain bis-aza-bicyclic anxiolytic agents
    1.
    发明授权
    Process and intermediate for certain bis-aza-bicyclic anxiolytic agents 失效
    某些双 - 氮杂 - 双环抗焦虑剂的方法和中间体

    公开(公告)号:US5455350A

    公开(公告)日:1995-10-03

    申请号:US137049

    申请日:1993-10-13

    IPC分类号: C07D471/04 C07D227/00

    CPC分类号: C07D471/04

    摘要: (C.sub.1 -C.sub.3)Alkyl-4,6,7,8,9,9a-hexahydro-2H,3H-pyrido[1,2-a]pyrazin-1-one-7-carboxylate esters, important precursors to certain bis-aza-bicyclic anxiolytics, can be prepared from di(C.sub.1 -C.sub.3)alkyl cis-piperidine-2,5-dicarboxylate starting material by a new process via a new class of intermediates, di(C.sub.1 -C.sub.3)alkyl cis-N-(2-(phthalimido)ethyl)piperidine-2,5-dicarboxylates. In the process, the starting material is reacted with either 2-(phthalimido)ethyl triflate or 2-(phthalimido)acetaldehyde to form the new intermediate, which can then be cyclized to the aforementioned precursor.

    摘要翻译: (C 1 -C 3)烷基-4,6,7,8,9,9a-六氢-2H,3H-吡啶并[1,2-a]吡嗪-1-酮-7-羧酸酯,某些双 - 可以通过新的方法通过新的中间体二(C 1 -C 3)烷基顺式-N-((C 1 -C 3)烷基) - 顺式 - 哌啶-2,5-二羧酸二(C 1 -C 3)烷基酯来制备氮杂双环抗焦虑剂, 2-(邻苯二甲酰亚氨基)乙基)哌啶-2,5-二羧酸酯。 在此过程中,起始原料与2-(苯二甲酰亚氨基)乙酸三乙酯或2-(苯二甲酰亚氨基)乙醛反应形成新的中间体,然后将其环化成前述前体。

    Process and intermediate for certain bis-aza-bicyclic anxiolytic agents
    4.
    发明授权
    Process and intermediate for certain bis-aza-bicyclic anxiolytic agents 失效
    某些双 - 氨基双酚A型抗菌剂的方法和中间体

    公开(公告)号:US5185449A

    公开(公告)日:1993-02-09

    申请号:US661730

    申请日:1991-02-27

    IPC分类号: C07D401/06 C07D471/04

    CPC分类号: C07D401/06 C07D471/04

    摘要: (C.sub.1 -C.sub.3)Alkyl-4,6,7,8,9,9a-hexahydro-2H,3H-pyrido-[1,2-a]pyrazin-1-one-7-carboxylate esters, important precursors to certain bis-aza-bicyclic anxiolytics, can be prepared from di(C.sub.1 -C.sub.3)alkyl cis-piperidine-2,5-dicarboxylate starting material by a new process via a new class of intermediates, di(C.sub.1 -C.sub.3)alkyl cis-N-(2-(phthalimido)ethyl)piperidine-2,5-dicarboxylates. In the process, the starting material is reacted with either 2-(phthalimido)ethyl triflate or 2-(phthalimido)acetaldehyde to form the new intermediate, which can then be cyclized to the aforementioned precursor.

    摘要翻译: (C 1 -C 3)烷基-4,6,7,8,9,9a-六氢-2H,3H-吡啶并 - [1,2-a]吡嗪-1-酮-7-羧酸酯,是某些双 - 双 - 二环抗焦虑剂可以通过新的方法通过新一类中间体二(C 1 -C 3)烷基顺式-N- (2-(苯二甲酰亚氨基)乙基)哌啶-2,5-二羧酸酯。 在此过程中,起始原料与2-(苯二甲酰亚氨基)乙酸三乙酯或2-(苯二甲酰亚氨基)乙醛反应形成新的中间体,然后将其环化成前述前体。