Compounds of formula I, defined herein, act both as muscarinic receptor antagonists and beta2 adrenergic receptor agonists and are useful for treating broncho-obstructive and inflammatory diseases.
具有本公式I定义的化合物既作为毒蕈碱受体拮抗剂又作为β2
肾上腺素能受体激动剂,并且用于治疗支气管阻塞和炎症性疾病。