Antihistaminic and non-sedative derivatives of benzimidazol, process for their preparation and their medicinal use.

摘要

The present invention relates to novel benzimidazole derivatives characterized in that they are of the general formula I, and their therapeutically acceptable salts, I in which: R1 and R2, which are identical or different, represent a hydrogen or a halogen atom, a lower alkyl radical, a hydroxyl radical, an alkoxy radical, an alkyl carboxylate radical, or an aryl or substituted aryl radical, n may take the values 0 or 1, m may take the values 2 to 4, X, Y, Z and W, which are identical or different, and which may even form part of another aromatic or nonaromatic ring, represent a nitrogen atom or a carbon atom linked to a hydrogen or to a halogen atom, or to another alkyl, aryl, carboxyalkyl, carboxylic, hydroxyl, alkyl hydroxyl, sulphonic or alkylsulphonic radical.