A compound of the formula I where m is 1 or 2, n is 1 or 2, A is selected from the group consisting of CH 2, CH 2 CH 2, CHFCH 2 and CF 2 CH 2, R 1 is C 3 -C 6 cycloalkyl which carries one or two oxygen containing radicals selected from the group consisting of OH, C 1 -C 2 -alkoxy, fluorinated C 1 -C 2 -alkoxy and a carbonyl oxygen, and which may additionally carry 1 or 2 radicals selected from fluorine, C 1 -C 2 -alkyl and fluorinated C 1 -C 2 -alkyl; R 2 is selected from the group consisting of hydrogen and fluorine, R 3a is selected from the group consisting of hydrogen and methyl, R 3b is selected from the group consisting of hydrogen and methyl, R 4 is branched C 4 -C 6 alkyl or branched fluorinated C 4 -C 6 alkyl, and R 5 is selected from the group consisting of C 1 -C 6 alkyl, fluorinated C 1 -C 3 alkyl, C 1 -C 2 -alkoxy-C 1 -C 4 -alkyl, fluorinated C 1 -C 2 -alkoxy-C 1 -C 4 -alkyl, hydroxy-C 1 -C 4 -alkyl, fluorinated hydroxy-C 1 -C 4 -alkyl, oxetanyl, fluorinated oxetanyl, oxolanyl, fluorinated oxolanyl, C 3 -C 5 cycloalkyl, fluorinated C 3 -C 5 cycloalkyl, C 3 -C 5 cycloalkyl-C 1 -C 4 -alkyl, fluorinated C 3 -C 5 cycloalkyl-C 1 -C 4 -alkyl, C 3 -C 5 cycloalkoxy-C 1 -C 4 -alkyl and fluorinated C 3 -C 5 cycloalkoxy-C 1 -C 4 -alkyl, where the cycloalkyl moiety in the last six mentioned groups of radicals may carry 1 or 2 radicals selected from hydroxyl, C 1 -C 2 -alkoxy, fluorinated C 1 -C 2 -alkoxy, C 1 -C 2 -alkyl and fluorinated C 1 -C 2 -alkyl, where the cycloal-koxy moiety in the last two mentioned radicals may carry 1 or 2 radicals selected from hydroxyl, C 1 -C 2 -alkoxy, fluorinated C 1 -C 2 -alkoxy, C 1 -C 2 -alkyl and fluorinated C 1 -C 2 -alkyl, the N-oxides and the pharmaceutically acceptable salts of these compounds. m is 1 or 2, n is 1 or 2, A is selected from the group consisting of CH 2, CH 2 CH 2, CHFCH 2 and CF 2 CH 2, R 1 is C 3 -C 6 cycloalkyl which carries one or two oxygen containing radicals selected from the group consisting of OH, C 1 -C 2 -alkoxy, fluorinated C 1 -C 2 -alkoxy and a carbonyl oxygen, and which may additionally carry 1 or 2 radicals selected from fluorine, C 1 -C 2 -alkyl and fluorinated C 1 -C 2 -alkyl; R 2 is selected from the group consisting of hydrogen and fluorine, R 3a is selected from the group consisting of hydrogen and methyl, R 3b is selected from the group consisting of hydrogen and methyl, R 4 is branched C 4 -C 6 alkyl or branched fluorinated C 4 -C 6 alkyl, and R 5 is selected from the group consisting of C 1 -C 6 alkyl, fluorinated C 1 -C 3 alkyl, C 1 -C 2 -alkoxy-C 1 -C 4 -alkyl, fluorinated C 1 -C 2 -alkoxy-C 1 -C 4 -alkyl, hydroxy-C 1 -C 4 -alkyl, fluorinated hydroxy-C 1 -C 4 -alkyl, oxetanyl, fluorinated oxetanyl, oxolanyl, fluorinated oxolanyl, C 3 -C 5 cycloalkyl, fluorinated C 3 -C 5 cycloalkyl, C 3 -C 5 cycloalkyl-C 1 -C 4 -alkyl, fluorinated C 3 -C 5 cycloalkyl-C 1 -C 4 -alkyl, C 3 -C 5 cycloalkoxy-C 1 -C 4 -alkyl and fluorinated C 3 -C 5 cycloalkoxy-C 1 -C 4 -alkyl, where the cycloalkyl moiety in the last six mentioned groups of radicals may carry 1 or 2 radicals selected from hydroxyl, C 1 -C 2 -alkoxy, fluorinated C 1 -C 2 -alkoxy, C 1 -C 2 -alkyl and fluorinated C 1 -C 2 -alkyl, where the cycloal-koxy moiety in the last two mentioned radicals may carry 1 or 2 radicals selected from hydroxyl, C 1 -C 2 -alkoxy, fluorinated C 1 -C 2 -alkoxy, C 1 -C 2 -alkyl and fluorinated C 1 -C 2 -alkyl,