CRYSTAL FORM VII OF AGOMELATINE, PREPARATION METHOD AND USE THEREOF AND PHARMACEUTICAL COMPOSITION CONTAINING SAME
    2.
    发明申请
    CRYSTAL FORM VII OF AGOMELATINE, PREPARATION METHOD AND USE THEREOF AND PHARMACEUTICAL COMPOSITION CONTAINING SAME 有权
    聚酰胺的晶体形式VII,其制备方法及其用途及含有其的药物组合物

    公开(公告)号:US20140011883A1

    公开(公告)日:2014-01-09

    申请号:US14006468

    申请日:2012-03-22

    IPC分类号: C07C233/22 C07C231/24

    摘要: The present invention provides a new crystalline form VII of agomelatine, its method of preparation, application and pharmaceutical composition. This new crystalline form offers high purity, a stable crystalline structure and good reproducibility, while its method of production lends itself well to large scale production. In terms of stability and purity, it is superior to the numerous crystalline forms which have hitherto been reported. As a result, the crystalline form VII of the present invention possesses advantages in pharmaceutical preparation.

    摘要翻译: 本发明提供了一种新的结晶形式的阿莫西坦结晶形式VII,其制备方法,应用和药物组合物。 这种新的结晶形式提供高纯度,稳定的晶体结构和良好的再现性,而其生产方法适合大规模生产。 在稳定性和纯度方面,它优于迄今报道的许多结晶形式。 结果,本发明的结晶形式VII在药物制剂中具有优点。

    Method for distinguishing a signal and its image

    公开(公告)号:US11921152B2

    公开(公告)日:2024-03-05

    申请号:US17531737

    申请日:2021-11-20

    申请人: Ling Tong

    发明人: Ling Tong

    IPC分类号: G01R31/28 G01R23/16

    CPC分类号: G01R31/2822

    摘要: The method is for identifying a signal and its image signal input to the heterodyne frequency sweep system. Comparing to a traditional heterodyne frequency sweep technology, a mixing module with a positive and negative sign filters (PNS filters) is introduced, and the detection and identification module is added, and the typical low-pass filter in the input module is removed. According to the timing order sequence of the signal output from the intermediate frequency (IF) filter and PNS filters, a signal and its image signal can be identified. The bandwidth of the heterodyne frequency sweep system is not limited by the cut-off frequency of the low-pass filter (LPF) of the traditional heterodyne frequency sweep system.