| abstract |
Compounds of formula (I) in free or salt or solvate form, where Ar is a group of formula (II) Y is carbon or nitrogen and R?1, R2, R3, R4, R5, R6, R7, R8, R9, R10¿, X, n, p, q and r are as defined in the specification, their preparation and their use as pharmaceuticals, particularly for the treatment of obstructive or inflammatory airways diseases. The compounds of formula (I) in free, salt or solvate form, have β2-adrenoreceptor agonist activity. |