Compound of the formula in which R 1 represents hydrogen, methyl or ethyl, where methyl and ethyl may be substituted up to three times by fluorine, R 2 represents methyl, ethyl, n -propyl, isopropyl, cyclopropyl, cyclopropylmethyl, 2,2-difluorovinyl, 3,3-difluoroallyl or propargyl or represents a group of the formula in which * denotes the point of attachment to the CH 2 group, Ar represents phenyl or 5- or 6-membered heteroaryl having up to two ring nitrogen atoms, where phenyl and heteroaryl may be mono- or disubstituted by identical or different radicals selected from the group consisting of fluorine, chlorine, methyl, trifluoromethyl, methoxy and trifluoromethoxy, R 4A represents hydrogen, fluorine or methyl, R 4B represents hydrogen, fluorine, methyl, trifluoromethyl, hydroxy or methoxy, or R 4A and R 4B are attached to one another and together with the carbon atom to which they are attached form a cyclopropyl or cyclobutyl ring, R 8 represents methyl or trifluoromethyl and R 9A and R 9B independently of one another represent hydrogen, methyl or trifluoromethyl, R 3 represents (C 1 -C 6)-alkyl, (C 2 -C 6)-alkenyl, (C 3 -C 7)-cycloalkyl or [(C 3 -C 7 -cycloalkyl]methyl, where alkyl and alkenyl may be substituted up to three times and cycloalkyl may be substituted up to two times by fluorine and where in alkyl and cycloalkyl up to two CH 2 groups may be replaced by -O- or -S-, with the proviso that there are at least two carbon atoms between such heteroatoms including the uracil N 1 -atom, and the ring A represents a mono- or bicyclic aza heterocycle of the formula in which ** denotes the point of attachment to the carbonyl group, R 5 represents hydrogen, methyl, trifluoromethyl, hydroxymethyl or ethyl, R 6A and R 6B each independently of one another represent hydrogen, methyl or ethyl, R 10A represents methyl, ethyl, hydroxy or methoxy, and R 10B represents hydrogen, methyl or ethyl, and their salts, solvates and solvates of the salts. R 1 represents hydrogen, methyl or ethyl, where methyl and ethyl may be substituted up to three times by fluorine, R 2 represents methyl, ethyl, n -propyl, isopropyl, cyclopropyl, cyclopropylmethyl, 2,2-difluorovinyl, 3,3-difluoroallyl or propargyl or represents a group of the formula in which * denotes the point of attachment to the CH 2 group, Ar represents phenyl or 5- or 6-membered heteroaryl having up to two ring nitrogen atoms, where phenyl and heteroaryl may be mono- or disubstituted by identical or different radicals selected from the group consisting of fluorine, chlorine, methyl, trifluoromethyl, methoxy and trifluoromethoxy, R 4A represents hydrogen, fluorine or methyl, R 4B represents hydrogen, fluorine, methyl, trifluoromethyl, hydroxy or methoxy, or R 4A and R 4B are attached to one another and together with the carbon atom to which they are attached form a cyclopropyl or cyclobutyl ring, R 8 represents methyl or trifluoromethyl and R 9A and R 9B independently of one another represent hydrogen, methyl or trifluoromethyl, Ar represents phenyl or 5- or 6-membered heteroaryl having up to two ring nitrogen atoms, where phenyl and heteroaryl may be mono- or disubstituted by identical or different radicals selected from the group consisting of fluorine, chlorine, methyl, trifluoromethyl, methoxy and trifluoromethoxy, R 4A represents hydrogen, fluorine or methyl, R 4B represents hydrogen, fluorine, methyl, trifluoromethyl, hydroxy or methoxy, or R 4A and R 4B are attached to one another and together with the carbon atom to which they are attached form a cyclopropyl or cyclobutyl ring, R 8 represents methyl or trifluoromethyl and R 9A and R 9B independently of one another represent hydrogen, methyl or trifluoromethyl, R 3 represents (C 1 -C 6)-alkyl, (C 2 -C 6)-alkenyl, (C 3 -C 7)-cycloalkyl or [(C 3 -C 7 -cycloalkyl]methyl, where alkyl and alkenyl may be substituted up to three times and cycloalkyl may be substituted up to two times by fluorine and where in alkyl and cycloalkyl up to two CH 2 groups may be replaced by -O- or -S-, with the proviso that there are at least two carbon atoms between such heteroatoms including the uracil N 1 -atom, R 5 represents hydrogen, methyl, trifluoromethyl, hydroxymethyl or ethyl, R 6A and R 6B each independently of one another represent hydrogen, methyl or ethyl, R 10A represents methyl, ethyl, hydroxy or methoxy, R 10B represents hydrogen, methyl or ethyl,