A compound in all possible isomeric forms and mixtures thereof of the formula <IMAGE> I wherein X and X' are individually selected from the group consisting of hydrogen, halogen, cyano, -NO2, -CF3 and alkyl and alkoxy of 1 to 8 carbon atoms, R is hydrogen or alkyl of 1 to 8 carbon atoms and Ar is selected from the group consisting of an unsubstituted or substituted aryl of 6 to 14 carbon atoms, an unsubstituted or substituted aromatic heterocyclic or a heterocyclic united with an unsubstituted or substituted aryl having cholecystokinine antagonistic activity.
2,4-dioxo-5-phenyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepines