This invention relates to compounds of formula I:
wherein R
1
and R
2
are as defined in the specification, or a pharmaceutically acceptable salt or solvate or stereoisomer thereof. The invention also relates to pharmaceutical compositions and combinations comprising such compounds, processes and intermediates for preparing such compounds, and methods of using such compound to, for example, treat pulmonary disorders, such as chronic obstructive pulmonary disease and asthma.
本发明涉及式I的化合物:其中R1和R2如规范中定义,或其药用可接受的盐或溶剂或立体异构体。该发明还涉及包含这类化合物的药物组合物和配方,用于制备这类化合物的过程和
中间体,以及使用这类化合物治疗肺部疾病,如慢性阻塞性肺病和哮喘等方法。