NEW BETAMIMETICS OF PROLONGED ACTION FOR THE TREATMENT OF DISEASES OF THE RESPIRATORY ROUTES.

摘要

A means a bivalent moiety chosen from the group consisting of -CR 4 R 5 -O-, -CH = CH- and -CH2-CH2-, preferably -CR 4 R 5 -O-; R 1 means -C 1-4 alkyl; R 2 and R 3 are the same or different and mean H, C 1-4 alkyl, C 2-4 alkenyl, C 2-4 alkynyl, C 3-6 cycloalkyl, C 1-4 haloalkyl, -O-C 1-4 haloalkyl, halogen, OH, CN, NO2, C2-4-OH alkyl, -O-C1-4 alkyl, COOH or COO-C1-4 alkyl, or R 2 and R 3 together form a bivalent moiety selected from -O-CR 4 R 5 -O -, -O-CR 4 R 5 -NR 6 and -CH = CH-CH = CH-; R 4 means H or C 1-4 alkyl; R 5 means H or C 1-4 alkyl; R 6 means H or C 1-4 alkyl, optionally in the form of individual enantiomers, of mixtures of the individual enantiomers or of racemates, optionally in the form of their pharmaceutically safe acid addition salts, as well as optionally in the form of their solvates and / or hydrates