The present invention provides compounds of general formula (I) ##STR1## wherein Ar represents an unsubstituted or substituted phenyl gorup; R.sup.1 and R.sup.2 each represents a hydrogen atom or a C.sub.1-3 alkyl group; X represents a bond or a C.sub.1-7 alkylene, C.sub.2-7 alkenylene or C.sub.2-7 alkynylene chain; Y represents a bond or a C.sub.1-6 alkylene, C.sub.2-6 alkenylene or C.sub.2-6 alkynylene chain; Q represents a substituted phenyl or pyridyl ring; and physiologically acceptable salts and solvates thereof useful as stimulants of .sub.2 -adrenoreceptors and particularly in the treatment of diseases associated with reversible airways obstruction such as asthma and chronic bronchitis.
本发明提供了通式(I)的化合物:
其中Ar代表未取代或取代的苯基团;R1和R2各代表氢原子或C1-3烷基基团;X代表键或C1-7烷基,C2-7烯基或C2-7炔基链;Y代表键或C1-6烷基,C2-6烯基或C2-6炔基链;Q代表取代的苯基或
吡啶环;以及其生理上可接受的盐和溶剂,用作.sub.2-
肾上腺素受体的兴奋剂,特别是用于治疗与可逆性气道阻塞有关的疾病,如哮喘和慢性支气管炎。