Compound of the formula in which n represents the number 1 or 2, A represents -N(R 2)- or -CH 2 -, wherein R 2 represents hydrogen or C 1 -C 4 -alkyl, R 1 represents a group of the formula where * is the point of attachment to the oxopyridine ring, R 6 represents bromine, chlorine, fluorine, methyl, difluoromethyl, trifluoromethyl, methoxy, difluoromethoxy or trifluoromethoxy, R 7 represents hydrogen, bromine, chlorine, fluorine, cyano, nitro, hydroxy, methyl, difluoromethyl, trifluoromethyl, methoxy, ethoxy, difluoromethoxy, trifluoromethoxy, ethynyl, 3,3,3-trifluoroprop-1-yn-1-yl or cyclopropyl, R 8 represents hydrogen, chlorine or fluorine, R 3 represents hydrogen, R 4 represents hydrogen, R 5 represents a group of the formula where # is the attachment site to the nitrogen atom, R 9 represents hydroxycarbonyl or 5-membered heterocyclyl, where heterocyclyl may be substituted by 1 to 2 substituents independently of one another selected from the group consisting of oxo, hydroxy, thioxo, sulphanyl, methyl, difluoromethyl, trifluoromethyl, 2-hydroxycarbonyl-1,1,2,2-tetrafluoroethyl and 2-methoxycarbonyl-1,1,2,2-tetrafluoroethyl, where methyl may be substituted by a methoxy substituent, R 10 represents hydrogen, chlorine, fluorine or methyl, R 11 and R 12 together with the carbon atoms to which they are bonded form a 5-membered heterocycle, where the heterocycle may be substituted by 1 to 2 substituents independently of one another selected from the group consisting of oxo, chlorine, hydroxy, hydroxycarbonyl, methyl, difluoromethyl, trifluoromethyl, 1,1,2,2,2-pentafluoroethyl, 2-hydroxycarbonyl-1,1,2,2-tetrafluoroethyl and 2-methoxycarbonyl-1,1,2,2-tetrafluoroethyl, R 13 represents hydrogen, chlorine, fluorine, methyl or methoxy, or one of the salts thereof, solvates thereof or solvates of the salts thereof. n represents the number 1 or 2, A represents -N(R 2)- or -CH 2 -, wherein R 2 represents hydrogen or C 1 -C 4 -alkyl, R 2 represents hydrogen or C 1 -C 4 -alkyl, R 1 represents a group of the formula where * is the point of attachment to the oxopyridine ring, R 6 represents bromine, chlorine, fluorine, methyl, difluoromethyl, trifluoromethyl, methoxy, difluoromethoxy or trifluoromethoxy, R 7 represents hydrogen, bromine, chlorine, fluorine, cyano, nitro, hydroxy, methyl, difluoromethyl, trifluoromethyl, methoxy, ethoxy, difluoromethoxy, trifluoromethoxy, ethynyl, 3,3,3-trifluoroprop-1-yn-1-yl or cyclopropyl, R 8 represents hydrogen, chlorine or fluorine, R 6 represents bromine, chlorine, fluorine, methyl, difluoromethyl, trifluoromethyl, methoxy, difluoromethoxy or trifluoromethoxy, R 7 represents hydrogen, bromine, chlorine, fluorine, cyano, nitro, hydroxy, methyl, difluoromethyl, trifluoromethyl, methoxy, ethoxy, difluoromethoxy, trifluoromethoxy, ethynyl, 3,3,3-trifluoroprop-1-yn-1-yl or cyclopropyl, R 8 represents hydrogen, chlorine or fluorine, R 3 represents hydrogen, R 4 represents hydrogen, R 5 represents a group of the formula where # is the attachment site to the nitrogen atom, R 9 represents hydroxycarbonyl or 5-membered heterocyclyl, where heterocyclyl may be substituted by 1 to 2 substituents independently of one another selected from the group consisting of oxo, hydroxy, thioxo, sulphanyl, methyl, difluoromethyl, trifluoromethyl, 2-hydroxycarbonyl-1,1,2,2-tetrafluoroethyl and 2-methoxycarbonyl-1,1,2,2-tetrafluoroethyl, where methyl may be substituted by a methoxy substituent, R 10 represents hydrogen, chlorine, fluorine or methyl, R 11 and R 12 together with the carbon atoms to which they are bonded form a 5-membered heterocycle, where the heterocycle may be substituted by 1 to 2 substituents independently of one another selected from the group consisting of oxo, chlorine, hydroxy, hydroxycarbonyl, methyl, difluoromethyl, trifluoromethyl, 1,1,2,2,2-pentafluoroethyl, 2-hydroxycarbonyl-1,1,2,2-tetrafluoroethyl and 2-methoxycarbonyl-1,1,2,2-tetrafluoroethyl, R 13 represents hydrogen, chlorine, fluorine, methyl or methoxy, or one of the salts thereof, solvates thereof or solvates of the salts thereof. R 9 represents hydroxycarbonyl or 5-membered heterocyclyl, where heterocyclyl may be substituted by 1 to 2 substituents independently of one another selected from the group consisting of oxo, hydroxy, thioxo, sulphanyl, methyl, difluoromethyl, trifluoromethyl, 2-hydroxycarbonyl-1,1,2,2-tetrafluoroethyl and 2-methoxycarbonyl-1,1,2,2-tetrafluoroethyl, where methyl may be substituted by a methoxy substituent, where methyl may be substituted by a methoxy substituent, R 10 represents hydrogen, chlorine, fluorine or methyl, R 11 and R 12 together with the carbon atoms to which they are bonded form a 5-membered heterocycle, where the heterocycle may be substituted by 1 to 2 substituents independently of one another selected from the group consisting of oxo, chlorine, hydroxy, hydroxycarbonyl, methyl, difluoromethyl, trifluoromethyl, 1,1,2,2,2-pentafluoroethyl, 2-hydroxycarbonyl-1,1,2,2-tetrafluoroethyl and 2-methoxycarbonyl-1,1,2,2-tetrafluoroethyl, R 13 represents hydrogen, chlorine, fluorine, methyl or methoxy,