A compound of the formula I ##STR1## or a pharmaceutically acceptable salt or hydrate thereof, wherein X, Y, Z and R.sup.1 to R.sup.7 are as defined herein, are inhibitors of H. pylori and therefore of use in the treatment and prevention of peptic ulcers, gastritis, dyspepsia, and gastric cancer.
化合物I的式子如下:##STR1## 或其药学上可接受的盐或
水合物,其中X、Y、Z和R.sup.1到R.sup.7的定义如本文所述,是幽门螺杆菌的
抑制剂,因此可用于治疗和预防消化性溃疡、胃炎、消化不良和胃癌。