This invention provides compounds of formula I:
1
wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
and R
7
are as defined in the specification, or a pharmaceutically acceptable salt or solvate or stereoisomer thereof. The compounds of this invention possess both &bgr;
2
adrenergic receptor agonist and muscarinic receptor antagonist activity. Such compounds are useful for treating pulmonary disorders, such as chronic obstructive pulmonary disease and asthma.
这项发明提供了式I的化合物:
其中R1、R2、R3、R4、R5、R6和R7如规范中所定义,或其药用可接受盐、溶剂或立体异构体。本发明的化合物具有β2
肾上腺素受体激动剂和肌碱受体拮抗剂活性。这些化合物对治疗肺部疾病,如慢性阻塞性肺病和哮喘,是有用的。