A urease inhibitor and an anti-
Helicobacter pylori
agent, which contain, as an active ingredient, an isothiazole derivative represented by the general formula (1):
1
wherein R
1
represents a hydrogen atom or an amino group, R
2
represents a hydrogen atom, a lower alkyl group, or an acetyl group, and X represents a carbon atom or a nitrogen atom. These drugs are effective to prevent and treat gastrointestinal diseases caused by urease of
Helicobacter pylori,
such as chronic gastritis and gastroduodenal ulcer.
一种尿酶
抑制剂和一种抗幽门螺杆菌药物,其活性成分为一种由通式(1)表示的
异噻唑烷衍
生物,其中R1代表氢原子或
氨基,R2代表氢原子、低碳基团或乙酰基团,X代表碳原子或氮原子。这些药物可有效预防和治疗由幽门螺杆菌的尿酶引起的胃肠道疾病,如慢性胃炎和胃十二指肠溃疡。