Calcium salts of 1,5-benzodiazepine derivatives, process for producing the salts and drugs containing the same

摘要

Provided are calcium salts of a 1,5-benzodiazepine derivative represented by the following formula (I): CHEM (wherein, R1 represents a lower alkyl group, R2 represents a phenyl or cyclohexyl group, and Y represents a single bond or a lower alkylene group); a process for preparing the salts; and drugs containing the same as the active ingredient. The compounds exhibit a potent inhibitory activity against the secretion of gastric acid and potent antagonism against gastrin and/or CCK-B receptor.