Novel benzothiazole and benzimidazole derivatives and antiulcer agent containing the same.

摘要

A novel benzothiazole or benzimidazole derivative represented by formula (I) <CHEM> wherein X represents a sulfur atom or a NH group; R<1> represents a hydrogen atom, a lower alkoxy group, a chlorine atom, a bromine atom or an iodine atom; R<2> represents a hydrogen atom a substituted or unsubstituted lower alkyl group, a vinyl group, an aryl group or an acyl group; m is an integer of 0, 1 ior 2; and n is an integer of 0, 1 or 2, which shows an excellent acid secretion suppressing effect and gastric mucosa protecting effect, and an antiulcer agent containing the same as an active ingredient.