This invention relates to a novel compound represented by the formula: ##STR1## wherein R is a 4-hydroxyphenyl group, a 4-carbamoylphenyl group or a 3-methanesulfonylaminophenyl group and its salt, which have an excellent anti-ulcer effect and good stability, to a process for producing the same, and to an anti-ulcer agent containing the same.
这项发明涉及一种由以下公式表示的新化合物:##STR1##其中R是
4-羟基苯基基团、4-
氨基甲酰苯基基团或3-甲磺酰
氨基苯基基团及其盐,具有优异的抗溃疡效果和良好的稳定性,以及制备该化合物的方法和含有该化合物的抗溃疡药剂。