Patent ID: 7662822

Claim:
A compound of the formula in which Ar is aryl, in which aryl may be substituted by 1 to 3 substituents, where the substituents are selected independently of one another from the group consisting of alkyl, alkoxy, formyl, hydroxycarbonyl, alkylcarbonyl, alkoxycarbonyl, trifluoromethyl, halogen, cyano, hydroxy, amino, alkylamino, aminocarbonyl and nitro, in which alkyl may be substituted by 1 to 3 substituents, where the substituents are selected independently of one another from the group consisting of halogen, amino, alkylamino, hydroxy and aryl, or two of the substituents on the aryl form together with the carbon atoms to which they are bonded a 1,3-dioxolane, a cyclopentane ring or a cyclohexane ring, and the optionally present third substituent is selected independently thereof from the group consisting of alkyl, alkoxy, formyl, hydroxycarbonyl, alkylcarbonyl, alkoxycarbonyl, trifluoromethyl, halogen, cyano, hydroxy, amino, alkylamino, aminocarbonyl and nitro, Q 1 , Q 2 , Q 3 and Q 4 are CH or N, where exactly one of Q 1 , Q 2 , Q 3 and Q 4 are N and the others are simultaneously CH, R 1 is hydrogen, amino, alkyl, alkoxy, alkylamino, alkylthio, cyano, halogen, nitro or trifluoromethyl, R 2 is hydrogen, alkyl, alkoxy, alkylthio, cyano, halogen, nitro or trifluoromethyl, R 3 is amino, alkyl, alkoxy, alkylamino, alkylthio, cyano, halogen, nitro, trifluoromethyl, alkylsulphonyl or alkylaminosulphonyl, or one of the radicals R 1 , R 2 and R 3 is hydrogen, alkyl, alkoxy, cyano, halogen, nitro or trifluoromethyl, and the other two form together with the carbon atoms to which they are bonded a 1,3-dioxolane, a cyclopentane ring or a cyclohexane ring, R 4 is hydrogen or alkyl, R 5 is hydrogen or alkyl, or the radicals R 4 and R 5 in the piperazine ring are bonded to exactly opposite carbon atoms and form a methylene bridge optionally substituted by 1 to 2 methyl groups, R 6 is hydrogen, alkyl, alkoxy, alkylthio, formyl, hydroxycarbonyl, aminocarbonyl, alkylcarbonyl, alkoxycarbonyl, trifluoromethyl, halogen, cyano, hydroxy or nitro, and R 7 is hydrogen, alkyl, alkoxy, alkylthio, formyl, hydroxycarbonyl, alkylcarbonyl, alkoxycarbonyl, trifluoromethyl, halogen, cyano, hydroxy or nitro, or a salt-thereof.