The present invention relates to novel compounds having β2 adrenergic agonist and M3 muscarinic antagonist dual activity, to pharmaceutical compositions containing them, to the process for their preparation and to their use in respiratory therapies.本發明有關於新的化合物,其具有β2腎上腺素增效劑及M3毒蕈碱拮抗劑之雙重作用,本發明也關於含有這些化合物的藥物組成,它們的製備過程及它們對呼吸系統疾病之治療的應用。