| abstract |
Compounds of the formula <IMAGE> where Ar represents a radical selected from the group consisting of 2,6-dichlorophenyl, 2,5-dichlorophenyl, 2-chloro-6-methylphenyl, 2-chloro-4-methylphenyl, 2,6-dichloro-4-bromophenyl, 4-cyanophenyl, 2,5-dimethoxyphenyl, and 2-methyl-5-fluorophenyl, and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as their salts are useful as bradycardiacs. |