Compound of the formula in which A is -CH 2 - or -SO 2 -, R 1 is hydrogen, (C 1 -C 6) alkyl, (C 2 -C 6) alkenyl, (C 2 -C 6) alkynyl or (C 3 -C 7) cycloalkyl, where (C 1 -C 6) alkyl, (C 2 -C 6) alkenyl and (C 2 -C 6) alkynyl may be substituted by 1 to 3 substituents independently of one another selected from the group consisting of halogen, cyano, oxo, trifluoromethyl, (C 3 -C 7) cycloalkyl, phenyl, -OR 10, -NR 11 R 12, -C(=O)-OR 13 and -C(=O)-NR 14 R 15, in which (C 3 -C 7) cycloalkyl may be substituted by 1 or 2 substituents independently of one another selected from the group consisting of (C 1 -C 4) alkyl, oxo, hydroxyl, (C 1 -C 4) alkoxy and amino, and in which phenyl may be substituted by 1 to 3 substituents independently of one another selected from the group consisting of halogen, cyano, nitro, (C 1 -C 4) alkyl, trifluoromethyl, hydroxyl, hydroxymethyl, (C 1 -C 4) alkoxy, trifluoromethoxy, (C 1 -C 4) alkoxymethyl, hydroxycarbonyl, (C 1 -C 4) alkoxycarbonyl, aminocarbonyl, mono-(C 1 -C 4) alkylaminocarbonyl and di-(C 1 -C 4) alkylaminocarbonyl, and in which R 10, R 11, R 12, R 13, R 14 and R 15 are each independently of one another hydrogen or (C 1 -C 6) alkyl, in which (C 1 -C 6) alkyl may on its part be substituted by 1 or 2 substituents independently of one another selected from the group consisting of amino, hydroxyl, (C 1 -C 4) alkoxy, hydroxycarbonyl and (C 1 -C 4) alkoxycarbonyl, and where (C 3 -C 7) cycloalkyl may be substituted by 1 or 2 substituents independently of one another selected from the group consisting of (C 1 -C 4) alkyl, (C 1 -C 4) alkoxy, hydroxy, amino and oxo, R 2 is phenyl where phenyl may be substituted by 1 to 3 substituents independently of one another selected from the group consisting of halogen, cyano, nitro, (C 1 -C 4) alkyl, trifluoromethyl, hydroxyl, (C 1 -C 4) alkoxy and trifluoromethoxy, R 3 is hydrogen or (C 1 -C 4) alkoxy, R 4 is (C 1 -C 6) alkylcarbonyl, hydroxycarbonyl, (C 1 -C 6) alkoxycarbonyl, mono-(C 1 -C 6)-alkylaminocarbonyl or di-(C 1 -C 6) alkylaminocarbonyl, where (C 1 -C 6)-alkylcarbonyl, (C 1 -C 6) alkoxycarbonyl, mono-(C 1 -C 6)-alkylaminocarbonyl and di-(C 1 -C 6)-alkylaminocarbonyl may be substituted by 1 to 4 substituents independently of one another selected from the group consisting of halogen, trifluoromethyl, (C 1 -C 6) alkyl and phenyl, in which phenyl may be substituted by 1 or 2 substituents independently of one another selected from the group consisting of halogen, cyano, trifluoromethyl, hydroxyl-(C 1 -C 4) alkyl, (C 1 -C 4) alkyl, trifluoromethoxy and (C 1 -C 4) alkoxy, R 5 is halogen, trifluoromethyl, (C 1 -C 4) alkyl, trifluoromethoxy or (C 1 -C 4) alkoxy, n is a number 0, 1 or 2, and also their salts, solvates, and solvates of the salts. A is -CH 2 - or -SO 2 -, R 1 is hydrogen, (C 1 -C 6) alkyl, (C 2 -C 6) alkenyl, (C 2 -C 6) alkynyl or (C 3 -C 7) cycloalkyl, where (C 1 -C 6) alkyl, (C 2 -C 6) alkenyl and (C 2 -C 6) alkynyl may be substituted by 1 to 3 substituents independently of one another selected from the group consisting of halogen, cyano, oxo, trifluoromethyl, (C 3 -C 7) cycloalkyl, phenyl, -OR 10, -NR 11 R 12, -C(=O)-OR 13 and -C(=O)-NR 14 R 15, in which (C 3 -C 7) cycloalkyl may be substituted by 1 or 2 substituents independently of one another selected from the group consisting of (C 1 -C 4) alkyl, oxo, hydroxyl, (C 1 -C 4) alkoxy and amino, and in which phenyl may be substituted by 1 to 3 substituents independently of one another selected from the group consisting of halogen, cyano, nitro, (C 1 -C 4) alkyl, trifluoromethyl, hydroxyl, hydroxymethyl, (C 1 -C 4) alkoxy, trifluoromethoxy, (C 1 -C 4) alkoxymethyl, hydroxycarbonyl, (C 1 -C 4) alkoxycarbonyl, aminocarbonyl, mono-(C 1 -C 4) alkylaminocarbonyl and di-(C 1 -C 4) alkylaminocarbonyl, and in which R 10, R 11, R 12, R 13, R 14 and R 15 are each independently of one another hydrogen or (C 1 -C 6) alkyl, in which (C 1 -C 6) alkyl may on its part be substituted by 1 or 2 substituents independently of one another selected from the group consisting of amino, hydroxyl, (C 1 -C 4) alkoxy, hydroxycarbonyl and (C 1 -C 4) alkoxycarbonyl, and where (C 3 -C 7) cycloalkyl may be substituted by 1 or 2 substituents independently of one another selected from the group consisting of (C 1 -C 4) alkyl, (C 1 -C 4) alkoxy, hydroxy, amino and oxo, R 2 is phenyl where phenyl may be substituted by 1 to 3 substituents independently of one another selected from the group consisting of halogen, cyano, nitro, (C 1 -C 4) alkyl, trifluoromethyl, hydroxyl, (C 1 -C 4) alkoxy and trifluoromethoxy, R 3 is hydrogen or (C 1 -C 4) alkoxy, R 4 is (C 1 -C 6) alkylcarbonyl, hydroxycarbonyl, (C 1 -C 6) alkoxycarbonyl, mono-(C 1 -C 6)-alkylaminocarbonyl or di-(C 1 -C 6) alkylaminocarbonyl, where (C 1 -C 6)-alkylcarbonyl, (C 1 -C 6) alkoxycarbonyl, mono-(C 1 -C 6)-alkylaminocarbonyl and di-(C 1 -C 6)-alkylaminocarbonyl may be substituted by 1 to 4 substituents independently of one another selected from the group consisting of halogen, trifluoromethyl, (C 1 -C 6) alkyl and phenyl, in which phenyl may be substituted by 1 or 2 substituents independently of one another selected from the group consisting of halogen, cyano, trifluoromethyl, hydroxyl-(C 1 -C 4) alkyl, (C 1 -C 4) alkyl, trifluoromethoxy and (C 1 -C 4) alkoxy, R 5 is halogen, trifluoromethyl, (C 1 -C 4) alkyl, trifluoromethoxy or (C 1 -C 4) alkoxy, n is a number 0, 1 or 2,