Compound of the formula I, in any of its stereoisomeric forms, or mixture of stereoisomeric forms in any ratio, or physiologically acceptable salt thereof, or physiologically acceptable solvate of such a compound or such a salt, wherein A is selected from the group consisting of a bond, -CH 2 -, NH, O and S; X is selected from the group consisting of (C 1 -C 6)-alkanediyl, (C 2 -C 6)-alkenediyl, (C 2 -C 6) -alkynediyl, (C 3 -C 7)-cycloalkanediyl, (C 1 -C 6)-alkanediyloxy and (C 3 -C 7)-cycloalkanediyloxy, all of which are optionally substituted by one or more identical or different substituents selected from the group consisting of fluorine and hydroxyl, where the oxygen atom of the (C 1 -C 6)-alkanediyloxy and (C 3 -C 7)-cycloalkanediyloxy groups is attached to group Y; Y is selected from the group consisting of phenylene and a bivalent radical of an aromatic 5-membered or 6-membered monocyclic heterocycle which contains 1, 2 or 3 identical or different ring heteroatoms selected from the group consisting of N, 0 and S, where one of the ring nitrogen atoms may carry a hydrogen atom or a substituent R 4 and where the phenylene and the bivalent radical of an aromatic heterocycle are optionally substituted at one or more ring carbon atoms by identical or different substituents R 5; R 1 is selected from the group consisting of hydrogen, (C 1 -C 4)-alkyl and (C 3 -C 7)-cycloalkyl-C z H 2z -, where z is selected from the group consisting of 0, 1 and 2; R 2 is selected from the group consisting of (C 1 -C 6)-alkyl, (C 3 -C 5)-cycloalkyl-C x H 2x -, Het 1 -C n H 2n -, where x and n are selected from the group consisting of 0, 1 and 2; R 3 is selected from the group consisting of (C 1 -C 6)-alkyl, where the alkyl radical is optionally substituted by one or more fluorine atoms, (C 2 -C 6)-alkenyl, (C 2 -C 6)-alkynyl, (C 3 -C 7) -cycloalkyl-C u H 2u - and Het 2 -C v H 2v -, where u and v are selected from the group consisting of 1 and 2, or R 3 is a radical of a saturated or unsaturated 3-membered to 10-membered monocyclic or bicyclic ring which contains 0, 1, 2, 3 or 4 identical or different ring heteroatoms selected from the group consisting of N, 0 and S, where one or two of the ring nitrogen atoms may carry a hydrogen atom or a (C 1 -C 4)-alkyl substituent and one or two of the ring sulfur atoms may carry one or two oxo groups and where the radical of a ring is optionally substituted at one or more ring carbon atoms by identical or different substituents R 31; R 4 is selected from the group consisting of (C 1 -C 4)-alkyl, (C 3 -C 7)-cycloalkyl-C w H 2w - and oxy, where w is selected from the group consisting of 0, 1 and 2; R 5 is selected from the group consisting of halogen, hydroxyl, (C 1 -C 4) -alkyl-, (C 3 -C 5)-cycloalkyl-C z H 2z -, (C 1 -C 4)-alkyloxy, (C 1 -C 4) -alkyl-S m -, amino, nitro, cyano, hydroxycarbonyl, (C 1 -C 4)-alkyloxycarbonyl, aminocarbonyl and aminosulfonyl, where z is selected from the group consisting of 0, 1 and 2; R 31 is selected from the group consisting of halogen, hydroxyl, (C 1 -C 4)-alkyl, (C 1 -C 4)-alkyloxy, (C 3 -C 7)-cycloalkyl, oxo, (C 1 -C 4)-alkyl-S m -, amino, (C 1 -C 4)-alkylamino, di((C 1 -C 4)-alkyl)amino, (C 1 -C 4)-alkylcarbonylamino, (C 1 -C 4)-alkylsulfonylamino, nitro, cyano, (C 1 -C 4) -alkylcarbonyl, aminosulfonyl, (C 1 -C 4)-alkylaminosulfonyl and di((C 1 -C 4)-alkyl)aminosulfonyl; Het 1 is a radical of a saturated 4-membered to 6-membered monocyclic saturated heterocycle which contains 1 or 2 identical or different ring heteroatoms selected from the group consisting of O and S and which is attached via a ring carbon atom, where a ring sulfur atom may carry one or two oxo groups and where the radical of a heterocycle is optionally substituted by one or more identical or different substituents selected from the group consisting of fluorine and (C 1 -C 4)-alkyl; Het 2 is a radical of a saturated 4-membered to 7-membered monocyclic heterocycle which contains 1 or 2 identical or different ring heteroatoms selected from the group consisting of N, O and S and which is attached via a ring carbon atom, where the radical of a heterocycle is optionally substituted by one or more identical or different substituents selected from the group consisting of fluorine and (C 1 -C 4)-alkyl; m is selected from the group consisting of 0, 1 and 2.