A thiadiazoleamide derivative or a salt thereof expressed by the following Formula 1: ##STR1## wherein each of R.sub.1 and R.sub.2 represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylamino group or an alkenyloxy group; wherein when either R.sub.1 or R.sub.2 is a hydrogen atom, the other is not a hydrogen atom; R.sub.3 represents a lower alkyl group, an aryl group, a pyridyl group or --N(R.sub.4)R.sub.5, wherein R.sub.4 and R.sub.5 represent lower alkyl groups or together represent a saturated heterocyclic ring having 4-8 members; wherein when R.sub.1 or R.sub.2 is a lower alkoxy group, R.sub.3 is --N(R.sub.4)R.sub.5 or a pyridyl group; and n represents an integer of 1-3. The derivatives have anti-ulcer effect to be available for preventing or curing ulcers in mammals.
以下为Formula 1所表示的
噻二唑酰胺衍
生物或其盐:##STR1##
其中,R.sub.1和R.sub.2分别表示氢原子、较低的烷基、较低的烷氧基、较低的烷基
氨基或烯氧基;当R.sub.1或R.sub.2为氢原子时,另一个不是氢原子;R.sub.3表示较低的烷基、芳基、
吡啶基或--N(R.sub.4)R.sub.5,其中,R.sub.4和R.sub.5表示较低的烷基或一起表示有4-8个成员的饱和杂环环;当R.sub.1或R.sub.2为较低的烷氧基时,R.sub.3为--N(R.sub.4)R.sub.5或
吡啶基;n表示1-3的整数。这些衍
生物具有抗溃疡效果,可用于预防或治疗哺乳动物的溃疡。