申请人:Takeda Chemical Industries, Ltd.
公开号:EP1437352A1
公开(公告)日:2004-07-14
The present invention relates to a compound represented by the following formula
wherein each symbol is as defined in the specification, or a salt thereof, which has superior stability to acid and which is a prodrug of 2-[[[3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridyl]methyl]sulfinyl]-1H-benzimidazole. This compound (1) shows a superior anti-ulcer activity, a gastric acid secretion-suppressive action, a mucosa-protecting action, an anti-Helicobacter pylori action and the like in living organisms, (2) shows low toxicity, (3) shows superior stability to acid (which obviates the need to formulate an enteric-coated preparation, thereby lowering the cost, and reduces the size of preparation to facilitate swallowing for patients having difficulty in swallowing), (4) shows faster absorption than enteric-coated preparations (rapid expression of gastric acid secretion-suppressive action), and (5) is sustainable.
本发明涉及由下式表示的化合物
其中各符号如说明书中所定义,或其盐,它对酸具有优异的稳定性,是 2-[[[3-甲基-4-(2,2,2-三氟乙氧基)-2-吡啶基]甲基]亚磺酰基]-1H-苯并咪唑的原药。这种化合物(1) 在生物体内显示出卓越的抗溃疡活性、胃酸分泌抑制作用、粘膜保护作用、抗幽门螺旋杆菌作用等;(2) 毒性低;(3) 对酸显示出卓越的稳定性(这就无需配制肠溶制剂、(4) 比肠溶制剂吸收更快(快速发挥抑制胃酸分泌的作用),以及 (5) 具有可持续性。