POTASSIUM SALT OF NIMESULIDE AND METHOD FOR OBTAINING POTASSIUM SALT CRYSTALS OF NIMESULIDE

    公开(公告)号:EP4438593A1

    公开(公告)日:2024-10-02

    申请号:EP23169129.6

    申请日:2023-04-21

    IPC分类号: C07C311/51

    摘要: According to the invention are new compounds potentially pharmaceutically active from the NSAID group - crystals of the potassium salt of nimesulide with the sum formula C13H11N2O5SK - shown as formula 1 and the hydrated potassium salt with the sum formula C39H50N6O23S3K2 - shown as formula 2. In the compounds shown, nimesulide is present in the ionised form - the anion - and the function of the counterion is performed by the potassium ion K+, which unites the inventions. The structures of the compounds differ only in the number of potassium and nimesulide ions and in the absence or presence of water molecules. The invention is also a method of obtaining.