Processes of preparing highly pure telmisartan form A, suitable for pharmaceutical compositions
    1.
    发明申请
    Processes of preparing highly pure telmisartan form A, suitable for pharmaceutical compositions 审中-公开
    制备高纯度替米沙坦形式A的方法,适用于药物组合物

    公开(公告)号:US20060276525A1

    公开(公告)日:2006-12-07

    申请号:US11434755

    申请日:2006-05-17

    IPC分类号: A61K31/4184 C07D403/02

    CPC分类号: C07D235/20

    摘要: Processes are disclosed for preparing Telmisartan form A, which is free-flowing and which does not contain electrostatic charge and is thus industrially process-able. The free-flowing Telmisartan form A is prepared by crystallization from a polar organic solvent e.g., DMSO, DMF, DMA, NMP, or water and is suitable for use in pharmaceutical compositions. A process is also disclosed for preparing highly-pure Telmisartan form A by precipitation from aqueous solutions.

    摘要翻译: 公开了制备替米沙坦形式A的方法,其自由流动并且不含静电电荷,因此在工业上可加工。 自由流动的替米沙坦形式A通过从极性有机溶剂例如DMSO,DMF,DMA,NMP或水中结晶制备,并且适用于药物组合物。 还公开了通过从水溶液中沉淀制备高纯度的替米沙坦形式A的方法。