| abstract |
New bronchospasmolytically active derivatives of phenylethanolamine of the general formula (X) in which R.sub.1.sub. and R.sub.2.n. they are the same or different and are each hydrogen or methoxy or R.sub.1. and R.sub.2.n. together form a chain of the formula -O-CH 2, 2-O- or -O-CF 2 -, -O-, R 3 -CH 3 -. is a hydrogen atom or a methyl group; represents a hydrogen atom and R.sub.6. is hydrogen or methoxy, and the pharmaceutically acceptable salts thereof, the process for the preparation thereof by reacting 4-benzyloxy-3-nitrostyrene oxide with an appropriately substituted amine, in the hydrogenation of the resulting intermediate, and in the subsequent reaction with the appropriate aldehyde and further hydrogenation and pharmaceutical. agents with prolonged bronchospasmolytic effect |