| abstract |
The invention relates to a compound selected from the group consisting of compounds of the formula: <IMAGE> (I) in which R1, R2 and R3 are independently selected from hydrogen, halogen, trifluoromethyl, nitro, C1-4 alkoxy and C1-4 alkyl, R4 represents a heterocyclic radical selected from the radicals having the formulae <IMAGE> <IMAGE> in which R5 and R6 are independently selected from hydrogen, C1-4 alkyl, phenyl and halophenyl, R7 is selected from hydrogen and C1-4 alkyl, and a pharmaceutically acceptable acid addition salt thereof. These compounds are useful for the treatment of gastric ulcers. |