申请人:Glaxo Group Limited
公开号:US05149698A1
公开(公告)日:1992-09-22
The invention provides compounds of the general formula (I) ##STR1## and physiologically acceptable salts and solvates thereof, wherein Q represents a chlorine atom or a trifluoromethyl group; X represents a bond, or a C.sub.1-6 alkylene, C.sub.2-6 alkenylene or C.sub.2-6 alkynylene chain, and Y represents a bond, or a C.sub.1-6 alkylene, C.sub.2-6 alkenylene or C.sub.2-6 alkynylene chain with the proviso that the sum total or carbon atoms in the chains X and Y is not more than 10, and the chains XCH.sub.2 and CH.sub.2 Y may each be optionally substituted by one or two C.sub.1-3 alkyl groups, or, when one carbon atom is substituted by two alkyl groups, these may be linked to form an alkylene group; R represents a hydrogen atom or a C.sub.1-3 alkyl group; R.sup.1 and R.sup.2 each represent a hydrogen atom or a C.sub.1-3 alkyl group, with the proviso that the sum total of carbon atoms in R.sup.1 and R.sup.2 is not more than 4; and Het is optionally substituted pyrimidinyl. The compounds have a stimulant action at .beta.-adrenoreceptors and may be used in the treatment of diseases associated with reversible airways obstruction such as asthma and chronic bronchitis.
本发明提供了一般式(I)的化合物及其生理上可接受的盐和溶剂化物,其中Q代表氯原子或三氟甲基基团;X代表键或C.sub.1-6烷基,C.sub.2-6烯基或C.sub.2-6炔基链,Y代表键或C.sub.1-6烷基,C.sub.2-6烯基或C.sub.2-6炔基链,但X和Y链中的碳原子总数不超过10,且XCH.sub.2和CH.sub.2Y链各可选择性地被一个或两个C.sub.1-3烷基取代,或者当一个碳原子被两个烷基取代时,它们可以连接形成一个烷基链;R代表氢原子或C.sub.1-3烷基;R.sup.1和R.sup.2各代表氢原子或C.sub.1-3烷基,但R.sup.1和R.sup.2中的碳原子总数不超过4;Het是可选择性取代的嘧啶基。这些化合物在β-肾上腺素受体上具有刺激作用,可用于治疗与可逆性气道阻塞相关的疾病,如哮喘和慢性支气管炎。