| abstract |
Disclosed is an aerosol formulation for inhalation with a longer duration of activity for the treatment of respiratory diseases. A general formula (1) (wherein the groups R 1, R 2, R 3 and X - is one having the meanings indicated in the scope and description of the claims) one or more compounds of the Use an aerosol formulation that does not contain propellant gas. [Chemical 1] [Selection figure] None |