| abstract |
The invention relates to compounds of the formula R 1 is selected from the group consisting of hydrogen, linear C 1 -C 3 alkyl and fluorinated linear C 1 -C 3 alkyl; R 2 is hydrogen or methyl; R 3 is selected from the group consisting of hydrogen, halogen, C 1 -C 2 -alkyl, fluorinated C 1 -C 2 -alkyl, C 1 -C 2 -alkoxy and fluorinated C 1 -C 2 -alkoxy, R 4 is C 1 -C 2 -alkyl or fluorinated C 1 -C 2 -alkyl; n is 0, 1 or 2, and the physiologically tolerated salts of these compounds and the N-oxides thereof. The invention also relates to a pharmaceutical composition that comprises at least one compound of the formula I and/or at least one physiologically tolerated acid addition salt thereof, and further to a method for treating disorders that respond beneficially to dopamine D 3 receptor antagonists or dopamine D 3 agonists, said method comprising administering an effective amount of at least one compound or physiologically tolerated acid addition salt of the formula I to a subject in need thereof. |