New enantiomerically pure beta agonists, process for the manufacture thereof, and use thereof as medicaments

摘要

Enantiomerically pure compounds of general formula 1 wherein the groups R¹, R², R³, R⁴, and X^- may have the meanings given in the claims and in the specification, processes for preparing them and the use thereof as pharmaceutical compositions, particularly as pharmaceutical compositions for the treatment of respiratory complaints.