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    • 2. 发明专利
    • Benzimidazole compound, method for producing the same, and application of the same
    • 苯并咪唑化合物,其制备方法及其应用
    • JP2003313186A
    • 2003-11-06
    • JP2002277780
    • 2002-09-24
    • Takeda Chem Ind Ltd武田薬品工業株式会社
    • KAMIYAMA KEIJISATO FUMIHIKOSAKANO HIROSHIHASUOKA ATSUSHI
    • C07D401/12A61K31/4439A61P1/04A61P31/04A61P35/00C07D405/14
    • PROBLEM TO BE SOLVED: To obtain a prodrug of 2-[[[3-methy1-4-(2,2,2-trifluoroethoxy)-2- pyridyl]methyl]sulfinyl]-1H-benzimidazole, having excellent acid stability. SOLUTION: The prodrug comprises a benzimidazole compound of formula (I) (A and R are each defined in the specification) or its salt. The prodrug has the following effects (1) to (5): (1) antiulcer action, gastic acid secretion- suppressing action, mucosa-preventing action, Helicobacter pylori-resisting action, or the like, which are excellent in an organism; (2) low toxicity; (3) the excellent acid stability (so that the prodrug is administered at a reduced cost because it is needless to be used as an enteric preparation, and further the prodrug is easily administered due to reduction of a size of a preparation); (4) rapid absorption when compared with the enteric preparation (so that the gastic acid secretion-suppressing action is rapidly developed); and (5) persistence. COPYRIGHT: (C)2004,JPO
    • 待解决的问题:获得具有优异酸性的2 - [[[3-甲基-4-(2,2,2-三氟乙氧基)-2-吡啶基]甲基]亚磺酰基] -1H-苯并咪唑的前药 稳定性。 解决方案:前药包括式(I)的苯并咪唑化合物(A和R各自在说明书中定义)或其盐。 前药具有以下效果(1)〜(5):(1)生物体优异的抗溃疡作用,胃酸分泌抑制作用,粘膜预防作用,幽门螺杆菌抗性作用等, (2)毒性低; (3)优异的酸稳定性(因为不需要用作肠溶制剂,所以前药以降低的成本进行给药,而且由于制剂的尺寸减小,前药容易施用); (4)与肠溶制剂相比,快速吸收(使得胃酸分泌抑制作用迅速发展); 和(5)坚持。 版权所有(C)2004,JPO