[EN] BENZOXAZINONE DERIVATIVES ACTING AS BETA2-ADRENORECEPTOR AGONIST FOR THE TREATMENT OF RESPIRATORY DISORDERS [FR] DÉRIVÉS DE BENZOXAZINONE AGISSANT COMME AGONISTE DES RÉCEPTEURS BÊTA2-ADRÉNERGIQUES POUR LE TRAITEMENT DE TROUBLES RESPIRATOIRES
Spirocyclic amide derivatives of formula I
wherein
ArCH
2
CH
2
NH— represents a β-adrenoceptor binding group, processes for their preparation, pharmaceutical compositions containing them, a process for preparing such pharmaceutical compositions, their use in therapy, and intermediates for use in their preparation.
The present invention provides a compound of formula (I)
wherein W, R
1
, R
2
and R
3
are as defined in the specification, processes for their preparation, pharmaceutical compositions containing them and their use in therapy.