A compound of formula wherein R1 represents a phenyl derivative of formulae (a) or (b) wherein R2 is 1-4C-alkoxy or 1-4C-alkoxy predominantly or completely substituted by fluorine, R3 is 1-4C-alkoxy, 3-5C-cycloalkoxy, 3-5C-cycloalkoxymethoxy or 1-4C-alkoxy predominantly or completely substituted by fluorine, R4 is 1-4C-alkoxy or 1-4C-alkoxy predominantly or completely substituted by fluorine, R5 is 1-4C-alkyl, R6 is hydrogen or 1-4C-alkyl or wherein R5 and R6 together and with inclusion of the two carbon atoms, to which they are bonded, form a spiro-linked 5-, 6- or 7-membered hydrocarbon ring, optionally interrupted by an oxygen or sulphur atom, R7 is hydrogen, R8 is 1-4C-alkyl, or R7 and R8 together form a 3C- to 5C-alkylene group, R9 is hydrogen or 1-4C-alkyl, or wherein R8 and R9 together and with inclusion of the carbon atom, to which they are bonded, form a spiro-linked 5-, 6- or 7-membered hydrocarbon ring, m is 1 or 2, R10 is independently from each other hydrogen, 5-7C-cycloalkyl, 1-6C-alkyl, -CH(CH 3)-R11 or -CH 2 -R12, wherein R11 is unsubstituted phenyl or hydroxyl, R12 is hydroxyl, 5-7C-cycloalkyl, -N-(1-2C-alkyl) 2, -CH 2 -S-(1-2C-alkyl), benzyl, unsubstituted phenyl, phenyl substituted by R13, phenyl substituted by R13 and R14, wherein R13 is halogen, 1-4C-alkoxy, 1-6C-alkyl, 1-4C-fluoroalkyl, hydroxyl, phenyl, -C NH 2, -CN, 2-oxoazetidin-1-yl or 2-oxopyrrolidin-1-yl, R14 is halogen, 1-4C-alkoxy, 1-6C-alkyl, 1-4C-fluoroalkyl, hydroxyl, phenyl, -C NH 2 or -CN, or R12 is selected from imidazol-2-yl, imidazol-4-yl, pyrazol-1-yl, thiophen-2-yl, thiophen-3-yl, thiazol-2-yl, thiazol-4-yl, thiazol-5-yl, pyridin-2-yl, pyridin-3-yl, pyridin-4-yl, indol-2-yl, indol-3-yl, 1-methyl-indol-2-yl or 1-methyl-indol-3-yl, or R12 is -CH 2 -C -R15, wherein R15 is hydroxyl, -N 2, piperidin-1-yl, pyrrolidin-1-yl or benzyloxy, wherein R16 is independently from each other hydrogen or 1-4C-alkyl, R17 is hydrogen or methyl, R18 is -CH 2 -3-6C-cycloalkyl, R19 is halogen, hydroxyl, 1-4C-alkoxy, 1-4C-alkoxy predominantly or completely substituted by fluorine or 1-4C-fluoroalkyl, R20 is halogen, hydroxyl, 1-4C-alkoxy or 1-4C-alkoxy predominantly or completely substituted by fluorine, or R19 and R20 together form a 1-2C-alkylenedioxy group or a stereoisomer of the compound or a salt of the compound or a salt of the stereoisomer of the compound. R1 represents a phenyl derivative of formulae (a) or (b) R2 is 1-4C-alkoxy or 1-4C-alkoxy predominantly or completely substituted by fluorine, R3 is 1-4C-alkoxy, 3-5C-cycloalkoxy, 3-5C-cycloalkoxymethoxy or 1-4C-alkoxy predominantly or completely substituted by fluorine, R4 is 1-4C-alkoxy or 1-4C-alkoxy predominantly or completely substituted by fluorine, R5 is 1-4C-alkyl, R6 is hydrogen or 1-4C-alkyl or wherein R5 and R6 together and with inclusion of the two carbon atoms, to which they are bonded, form a spiro-linked 5-, 6- or 7-membered hydrocarbon ring, optionally interrupted by an oxygen or sulphur atom, R7 is hydrogen, R8 is 1-4C-alkyl, or R7 and R8 together form a 3C- to 5C-alkylene group, R9 is hydrogen or 1-4C-alkyl, or wherein R8 and R9 together and with inclusion of the carbon atom, to which they are bonded, form a spiro-linked 5-, 6- or 7-membered hydrocarbon ring, m is 1 or 2, m is 1 or 2, R10 is independently from each other hydrogen, 5-7C-cycloalkyl, 1-6C-alkyl, -CH(CH 3)-R11 or -CH 2 -R12, wherein R11 is unsubstituted phenyl or hydroxyl, R12 is hydroxyl, 5-7C-cycloalkyl, -N-(1-2C-alkyl) 2, -CH 2 -S-(1-2C-alkyl), benzyl, unsubstituted phenyl, phenyl substituted by R13, phenyl substituted by R13 and R14, wherein R13 is halogen, 1-4C-alkoxy, 1-6C-alkyl, 1-4C-fluoroalkyl, hydroxyl, phenyl, -C NH 2, -CN, 2-oxoazetidin-1-yl or 2-oxopyrrolidin-1-yl, R14 is halogen, 1-4C-alkoxy, 1-6C-alkyl, 1-4C-fluoroalkyl, hydroxyl, phenyl, -C NH 2 or -CN, R13 is halogen, 1-4C-alkoxy, 1-6C-alkyl, 1-4C-fluoroalkyl, hydroxyl, phenyl, -C NH 2, -CN, 2-oxoazetidin-1-yl or 2-oxopyrrolidin-1-yl, R14 is halogen, 1-4C-alkoxy, 1-6C-alkyl, 1-4C-fluoroalkyl, hydroxyl, phenyl, -C NH 2 or -CN, or R12 is selected from imidazol-2-yl, imidazol-4-yl, pyrazol-1-yl, thiophen-2-yl, thiophen-3-yl, thiazol-2-yl, thiazol-4-yl, thiazol-5-yl, pyridin-2-yl, pyridin-3-yl, pyridin-4-yl, indol-2-yl, indol-3-yl, 1-methyl-indol-2-yl or 1-methyl-indol-3-yl, or R12 is -CH 2 -C -R15, wherein R15 is hydroxyl, -N 2, piperidin-1-yl, pyrrolidin-1-yl or benzyloxy, wherein R16 is independently from each other hydrogen or 1-4C-alkyl, R15 is hydroxyl, -N 2, piperidin-1-yl, pyrrolidin-1-yl or benzyloxy, wherein R16 is independently from each other hydrogen or 1-4C-alkyl, R17 is hydrogen or methyl, R18 is -CH 2 -3-6C-cycloalkyl, R19 is halogen, hydroxyl, 1-4C-alkoxy, 1-4C-alkoxy predominantly or completely substituted by fluorine or 1-4C-fluoroalkyl, R20 is halogen, hydroxyl, 1-4C-alkoxy or 1-4C-alkoxy predominantly or completely substituted by fluorine, or R19 and R20 together form a 1-2C-alkylenedioxy group