[EN] COMPOUNDS HAVING ß2 ADRENERGIC RECEPTOR AGONIST AND MUSCARINIC RECEPTOR ANTAGONIST ACTIVITY<br/>[FR] COMPOSES A ACTIVITE AGONISTE POUR RECEPTEUR ?2 ADRENERGIQUE ET ANTAGONISTE POUR RECEPTEUR MUSCARINIQUE
申请人:THERAVANCE INC
公开号:WO2006023457A1
公开(公告)日:2006-03-02
This invention provides compounds of formula I wherein R1, R2, R3, R4, R5, R6, R7, R8a, R8b, W, a and b are as defined in the specification, or a pharmaceutically acceptable salt or solvate or stereoisomer thereof. The compounds of this invention possess both β2 adrenergic receptor agonist and muscarinic receptor antagonist activity. Accordingly, such compounds are expected to be useful as therapeutic agents for treating pulmonary disorders, such as chronic obstructive pulmonary disease and asthma.
This study describes the novel utility of cyclic sulfamidite as a simultaneous protectinggroup for 1,2- or 1,3-amino alcohols. An exceptionally mild and neutral condition for the removal of the cyclic sulfamidite was developed. The deprotection condition demonstrated a broad range of functional-group compatibility, including a substrate bearing a Z-enyne structure without any loss of double-bond stereochemistry