BENZIMIDAZOLE COMPOUNDS, PROCESS FOR PRODUCING THE SAME AND USE THEREOF

摘要

Compounds represented by the following general formula (I) or salts thereof, which show: (1) excellent antiulcer, gastric acid secretion inhibitory, mucosa-protecting and anti-Helicobacter pyroli effects in vivo; (2) a low toxicity; (3) a high stability to acid (i.e., making it unnecessary to process into enteric preparations, thereby saving the cost and facilitating the intake by patients with dysplagia because of the small size); (4) a higher absorption speed than enteric preparations (i.e., achieving higher expression of the gastric acid secretion inhibitory effect); and (5) a long-lasting effect. In said formula, each symbol is as defined in the description. Thus benzimidazole compounds, which are highly stable to acid and can be converted into proton pump inhibitors in vivo to thereby exert an antiulcer effect, etc., can be provided.