Compounds of the formula I in which X denotes CH, R denotes Het, R 1 denotes pyridyl, pyrimidyl, pyridazinyl or furo[3,2-b]pyridyl, each of which is unsubstituted or monosubstituted by Hal, A, OR 5, COOA, COOH, CON(R 5) 2 and/or NR 5 COA', Het denotes furyl, thienyl, pyrrolyl, imidazolyl, pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, pyridyl, pyrimidinyl, triazolyl, tetrazolyl, thiadiazole, pyridazinyl, pyrazinyl, indolyl, isoindolyl, benzimidazolyl, indazolyl, quinolyl, 1,3-benzodioxolyl, benzothiophenyl, benzofuranyl or imidazopyridyl, each of which is unsubstituted or mono-, di- or trisubstituted by A, COA, (CH 2) p Het 2, OH, OA, Hal, (CH 2) p N(R 5) 2, NO 2, CN, (CH 2) p COOR 5, (CH 2) p CON(R 5) 2, NR 5 COA, (CH 2) p COHet 2 and/or (CH 2) p phenyl, Het 2 denotes dihydropyrrolyl, pyrrolidinyl, tetrahydroimidazolyl, dihydropyrazolyl, tetrahydropyrazolyl, dihydropyridyl, tetrahydropyridyl, piperidinyl, morpholinyl, hexahydropyridazinyl, hexahydropyrimidinyl, [1,3]dioxolanyl, piperazinyl, each of which is unsubstituted or monosubstituted by OH and/or A, A' denotes unbranched or branched alkyl having 1-6 C atoms, in which 1-7 H atoms may be replaced by F, A denotes unbranched or branched alkyl having 1-10 C atoms, in which one or two non-adjacent CH and/or CH 2 groups may be replaced by N, O, S atoms and/or by -CH=CH- groups and/or in addition 1-7 H atoms may be replaced by F, R 5 denotes H or unbranched or branched alkyl having 1-6 C atoms, in which 1-7 H atoms may be replaced by F, Hal denotes F, Cl, Br or I, n denotes 0, 1, 2, 3 or 4, p denotes 0, 1 or 2, q denotes 1, 2, 3 or 4, and pharmaceutically usable salts, tautomers and stereoisomers thereof, including mixtures thereof in all ratios. X denotes CH, R denotes Het, R 1 denotes pyridyl, pyrimidyl, pyridazinyl or furo[3,2-b]pyridyl, each of which is unsubstituted or monosubstituted by Hal, A, OR 5, COOA, COOH, CON(R 5) 2 and/or NR 5 COA', Het denotes furyl, thienyl, pyrrolyl, imidazolyl, pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, pyridyl, pyrimidinyl, triazolyl, tetrazolyl, thiadiazole, pyridazinyl, pyrazinyl, indolyl, isoindolyl, benzimidazolyl, indazolyl, quinolyl, 1,3-benzodioxolyl, benzothiophenyl, benzofuranyl or imidazopyridyl, each of which is unsubstituted or mono-, di- or trisubstituted by A, COA, (CH 2) p Het 2, OH, OA, Hal, (CH 2) p N(R 5) 2, NO 2, CN, (CH 2) p COOR 5, (CH 2) p CON(R 5) 2, NR 5 COA, (CH 2) p COHet 2 and/or (CH 2) p phenyl, Het 2 denotes dihydropyrrolyl, pyrrolidinyl, tetrahydroimidazolyl, dihydropyrazolyl, tetrahydropyrazolyl, dihydropyridyl, tetrahydropyridyl, piperidinyl, morpholinyl, hexahydropyridazinyl, hexahydropyrimidinyl, [1,3]dioxolanyl, piperazinyl, each of which is unsubstituted or monosubstituted by OH and/or A, A' denotes unbranched or branched alkyl having 1-6 C atoms, in which 1-7 H atoms may be replaced by F, A denotes unbranched or branched alkyl having 1-10 C atoms, in which one or two non-adjacent CH and/or CH 2 groups may be replaced by N, O, S atoms and/or by -CH=CH- groups and/or in addition 1-7 H atoms may be replaced by F, R 5 denotes H or unbranched or branched alkyl having 1-6 C atoms, in which 1-7 H atoms may be replaced by F, Hal denotes F, Cl, Br or I, n denotes 0, 1, 2, 3 or 4, p denotes 0, 1 or 2, q denotes 1, 2, 3 or 4,