Compounds of formula (I), defined herein, are both phosphodiesterase 4 (PDE4) enzyme inhibitors and muscarinic M3 receptor antagonists and are useful for the prevention and/or treatment of a disease of the respiratory tract.
本文定义的式 (I) 化合物既是
磷酸二酯酶 4 (PDE4) 酶
抑制剂,又是毒蕈碱类 M3 受体拮抗剂,可用于预防和/或治疗呼吸道疾病。