This product nitroimidazole derivatives, for trichomonas, amoeba, and flagellates have a role.

Aim to design and synthesize the novel aniline-type derivatives of benzimidazole, and to assay their activities of inhibiting secretion of gastric juice and gastric acids.

Benzopyran derivatives substituted with a benzimidazole derivative, pharmaceutically acceptable salts thereof, their preparations and pharmaceutical compositions containing them.