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.
本发明涉及公式R1选自氢、线性C1-C3烷基和
氟化的线性C1-C3烷基的组;R2是氢或甲基;R3选自氢、卤素、C1-C2烷基、
氟化C1-C2烷基、C1-C2烷氧基和
氟化C1-C2烷氧基的组;R4是C1-C2烷基或
氟化C1-C2烷基;n为0、1或2,以及这些化合物的生理耐受盐和N-氧化物。本发明还涉及一种制药组合物,其包括至少一种公式I化合物和/或至少一种生理耐受的酸加盐物,以及用于治疗对
多巴胺D3受体拮抗剂或
多巴胺D3激动剂有益反应的疾病的方法,该方法包括向需要的受体中投与至少一种公式I化合物或生理耐受的酸加盐物的有效量。