New 2-piperazinylbenzimidazole derivatives.

摘要

A description of new 2-piperazinylbenzimidazole derivatives, of general formula <CHEM> where R can be a hydrogen atom, a short chain alkyl group and a phenyl radical, substituted in position four by a halogen, and R1 can be a hydrogen atom, an alkoxycarbonyl radical, a hydroxymetyl group and a diphenylmethyl group, and their addition salts with pharmaceutically acceptable acids. these compounds are pharmacologically active as antagonists of serotonin 5HT3 receptors.