| 摘要 |
The invention is concerned with compounds of general formula (I) wherein R1 and R3 each independently signify hydrogen, aryl, carbamoyl, lower-alkyl-carbonyl, lower-alkyl, halogen, lower-alkyl-carbonyl-amino, lower-alkenyl-carbonyl-amino, amino, arylamino, aryloxy, nitro, aryl-acetyl, lower-alkanoyl-lower-alkyl, alkyl-sulphonyl-amino, ureido or furan-2-yl-carbonyl-amino and R2 signifies hydrogen, lower-alkyl, trifluoromethyl, halogen, lower-alkoxy, lower-alkyl-carbonyl or lower-alkyl-carbonyl-amino or R1 and R2 together can be -OCH2O-, -O(CH2)2O- or -(CH2)3-, R4 signifies hydrogen, halogen, hydroxy, lower-alkyl, lower-alkoxy or nitro, R5 signifies hydrogen, halogen or lower-alkoxy, R6 signifies hydrogen, lower-alkyl, halogen, hydroxy, amino, lower-alkoxy, trifluoromethyl, nitro or lower-alkyl-carbonyl-amino and R7 signifies hydrogen or lower-alkyl-carbonyl, as well as pharmaceutically acceptable salts of compounds of formula (I), for the treatment or prevention of illnesses which are caused by disorders of the dopamine system, and, respectively, for the production of corresponding medicaments.
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