This invention provides biphenyl derivatives of formula I:
wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, W, a, b and c are as defined in the specification, or a pharmaceutically acceptable salt or solvate or stereoisomer thereof. The biphenyl derivatives of this invention possess both β
2
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.
本发明提供了式I的
联苯衍
生物:其中R1,R2,R3,R4,R5,R6,R7,W,a,b和c如说明书中所定义,或其药学上可接受的盐或溶剂或立体异构体。本发明的
联苯衍
生物具有β2
肾上腺素受体激动剂和肌动蛋白受体拮抗剂活性,因此,这些
联苯衍
生物可用于治疗肺部疾病,如慢性阻塞性肺疾病和哮喘。