Compounds of formula (I) in free or salt or solvate form, wherein T has the meaning as indicated in the specification, are useful for treating conditions that are prevented or alleviated by activation of the β2-adrenoreceptor. Pharmaceutical compositions that contain the compounds and a process for preparing the compounds are also described.
式(I)的化合物,无论是自由形式、盐形式或溶剂合物形式,其中T的含义如规范中所示,可用于治疗通过激活β2-
肾上腺素能受体预防或缓解的疾病。还描述了含有这些化合物的药物组合物以及制备这些化合物的过程。