| abstract |
This invention provides biphenyl derivatives containing (i) a (biphenyl-2-yl)oxycarbonylamino- or (biphenyl-2-yl)aminocarbonylamino-substituted (2-7C)azacycloalkyl or (5-10C)azabicycloalkyl group; (ii) a substituted 2-(4-hydroxyphenyl)-2-hydroxyethylamino group; and a divalent hydrocarbon group, where each group is further defined and optionally substituted as described in the specification. The biphenyl derivatives of the invention possess both β2 adrenergic receptor agonist and muscarinic receptor antagonist activity and therefore, such biphenyl derivatives are useful for treating pulmonary disorders, such as chronic obstructive pulmonary disease and asthma. |