Compound of the formula in which A represents CH 2, R 1 represents cyclohexyl, or represents a phenyl group of the formula where ## represents the point of attachment to A, and R 11 represents hydrogen or fluorine, or represents a pyridyl group of the formula where # represents the point of attachment to A, R 2 represents methyl, R 3 represents 3-pyridyl, 4-pyridyl, 2-pyrimidyl, 5-pyrimidyl or 1,3,5-triazinyl, where 3-pyridyl is substituted in the 4-position by -NR 9 R 10, where 4-pyridyl is substituted in the 3-position by -NR 9 R 10, where 2-pyrimidyl is substituted in the 4-position by -NR 9 R 10, where 5-pyrimidyl is substituted in the 2-position by -NR 9 R 10, in which in each case R 9 represents hydrogen or methyl, R 10 represents (C 1 -C 6) -alkyl or phenyl, in which (C 1 -C 6) -alkyl may be substituted by 1 or 2 substituents independently of one another selected from the group consisting of (C 1 -C 4)-alkoxy, amino and phenyl, and up to trisubstituted by fluorine, or R 9 and R 10 together with the nitrogen atom to which they are attached form a pyrrolidinyl, morpholinyl or piperazinyl ring, in which the pyrrolidinyl, morpholinyl or piperazinyl ring may be substituted by 1 or 2 methyl substituents, where 4-pyridyl may be substituted in the 2-position by fluorine, where 1,3,5-triazinyl is up to disubstituted by -NR 9A R 10A, in which R 9A represents hydrogen or methyl, R 10A represents hydrogen, (C 1 -C 6) -alkyl or phenyl, in which (C 1 -C 6) -alkyl may be substituted by amino and up to three times by fluorine, where 1,3,5-triazinyl may be substituted by chlorine, R 4 represents hydrogen, R 5 represents hydrogen, chlorine or methyl, R 6 represents hydrogen, and the N-oxides, salts, solvates, salts of the N-oxides and solvates of the N-oxides and salts thereof. A represents CH 2, R 1 represents cyclohexyl, or represents a phenyl group of the formula where ## represents the point of attachment to A, and R 11 represents hydrogen or fluorine, or represents a pyridyl group of the formula where # represents the point of attachment to A, # represents the point of attachment to A, R 2 represents methyl, R 3 represents 3-pyridyl, 4-pyridyl, 2-pyrimidyl, 5-pyrimidyl or 1,3,5-triazinyl, where 3-pyridyl is substituted in the 4-position by -NR 9 R 10, where 4-pyridyl is substituted in the 3-position by -NR 9 R 10, where 2-pyrimidyl is substituted in the 4-position by -NR 9 R 10, where 5-pyrimidyl is substituted in the 2-position by -NR 9 R 10, in which in each case R 9 represents hydrogen or methyl, R 10 represents (C 1 -C 6) -alkyl or phenyl, in which (C 1 -C 6) -alkyl may be substituted by 1 or 2 substituents independently of one another selected from the group consisting of (C 1 -C 4)-alkoxy, amino and phenyl, and up to trisubstituted by fluorine, or R 9 and R 10 together with the nitrogen atom to which they are attached form a pyrrolidinyl, morpholinyl or piperazinyl ring, in which the pyrrolidinyl, morpholinyl or piperazinyl ring may be substituted by 1 or 2 methyl substituents, where 4-pyridyl may be substituted in the 2-position by fluorine, where 1,3,5-triazinyl is up to disubstituted by -NR 9A R 10A, in which R 9A represents hydrogen or methyl, R 10A represents hydrogen, (C 1 -C 6) -alkyl or phenyl, in which (C 1 -C 6) -alkyl may be substituted by amino and up to three times by fluorine, where 1,3,5-triazinyl may be substituted by chlorine, R 4 represents hydrogen, R 5 represents hydrogen, chlorine or methyl, R 6 represents hydrogen, R 9 represents hydrogen or methyl, R 10 represents (C 1 -C 6) -alkyl or phenyl, in which (C 1 -C 6) -alkyl may be substituted by 1 or 2 substituents independently of one another selected from the group consisting of (C 1 -C 4)-alkoxy, amino and phenyl, and up to trisubstituted by fluorine, or R 9 and R 10 together with the nitrogen atom to which they are attached form a pyrrolidinyl, morpholinyl or piperazinyl ring, in which the pyrrolidinyl, morpholinyl or piperazinyl ring may be substituted by 1 or 2 methyl substituents, where 4-pyridyl may be substituted in the 2-position by fluorine, where 1,3,5-triazinyl is up to disubstituted by -NR 9A R 10A, in which R 9A represents hydrogen or methyl, R 10A represents hydrogen, (C 1 -C 6) -alkyl or phenyl, in which (C 1 -C 6) -alkyl may be substituted by amino and up to three times by fluorine, where 1,3,5-triazinyl may be substituted by chlorine, R 9A represents hydrogen or methyl, R 10A represents hydrogen, (C 1 -C 6) -alkyl or phenyl, in which (C 1 -C 6) -alkyl may be substituted by amino and up to three times by fluorine, where 1,3,5-triazinyl may be substituted by chlorine, R 4 represents hydrogen, R 5 represents hydrogen, chlorine or methyl, R 6 represents hydrogen,