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 hydrogen or C 1 -C 3 -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 an oxygen containing radical selected from the group consisting of 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, oxo-lanyl, fluorinated oxolanyl, C 3 -C 5 cycloalkyl, fluorinated C 3 -C 5 cycloalkyl, where the cycloalkyl moiety in the last two mentioned radicals carries 1 or 2 radicals selected from hydroxyl, C 1 -C 2 -alkoxy and fluorinated C 1 -C 2 -alkoxy and may additionally carry 1 or 2 radicals selected from C 1 -C 2 -alkyl and fluorinated C 1 -C 2 -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 cycloalkoxy 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, the prodrugs and the pharmaceutically acceptable salts of these compounds; where the prodrugs are selected from compounds I carrying an OH group, where the hydrogen atom of the OH group is substituted by a C 1 -C 4 -alkylcarbonyl group, by benzoyl, by an amino acid, selected from glycine, alanine, serine and phenylalanine, which is linked to the oxygen of the OH group via the carbonyl group of the amino acid; or by a group of the formula -C(=O)-O-CHR p -O-C(=O)-R q in which R p and R q are independently of one another C 1 -C 4 -alkyl. 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 hydrogen or C 1 -C 3 -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 an oxygen containing radical selected from the group consisting of 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, oxo-lanyl, fluorinated oxolanyl, C 3 -C 5 cycloalkyl, fluorinated C 3 -C 5 cycloalkyl, where the cycloalkyl moiety in the last two mentioned radicals carries 1 or 2 radicals selected from hydroxyl, C 1 -C 2 -alkoxy and fluorinated C 1 -C 2 -alkoxy and may additionally carry 1 or 2 radicals selected from C 1 -C 2 -alkyl and fluorinated C 1 -C 2 -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 cycloalkoxy 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,