The invention relates to novel compounds which are both phosphodiesterase 4 (PDE4) enzyme inhibitors and muscarinic M3 receptor antagonists, methods of preparing such compounds, compositions containing them and therapeutic use thereof.本發明係有關於其為磷酸二酯酶4(PDE4)酶抑制劑及蕈毒鹼M3受體拮抗劑兩者的新穎化合物、此等化合物之製法、含有此等化合物之組成物及其治療用途。