申请人:GLAXO GROUP LIMITED
公开号:EP0303464A2
公开(公告)日:1989-02-15
The invention provides compounds of the general formula (I)
and physiologically acceptable salts and solvates thereof, wherein
Q represents a chlorine atom or a trifluoromethyl group;
X represents a bond, or a C₁₋₆alkylene, C₂₋₆alkenylene or C₂₋₆alkynylene chain, and Y represents a bond, or a C₁₋₆alkylene, C₂₋₆alkenylene or C₂₋₆alkynylene 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 XCH₂ and CH₂Y may each be optionally substituted by one or two C₁₋₃alkyl 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 C₁₋₃alkyl group;
R¹ and R² each represent a hydrogen atom or a C₁₋₃alkyl group, with the proviso that the sum total of carbon atoms in R¹ and R² is not more than 4; and
Het represents a benzoheteroaryl or a monocyclic heteroaryl group wherein the heteroaryl group is 5 or 6 membered and contains 1, 2 or 3 hetero atoms, one of which is a nitrogen atom and the other(s) is (are) nitrogen, oxygen or sulphur atom(s), and the group Het may optionally be substituted by one or two groups selected from C₁₋₄alkyl, C₁₋₄alkoxy, hydroxy, halogen, -NR³R⁴ and -COR⁸; where R³ and R⁴ each represent a hydrogen atom or a C₁₋₄alkyl group or -NR³R⁴ forms a saturated heterocyclic amino group which has 5-7 ring members and optionally contains in the ring one or more atoms selected from -O- or -S- or a group -NH- or -N(CH₃)-; and
R⁸ represents hydroxy, C₁₋₄alkoxy or -NR³R⁴;
with the proviso that
(i) when Het represents a pyridyl group substituted by the group -NR³R⁴ or -COR⁸ and Q is a chlorine atom, or
(ii) when Het represents a pyridyl group optionally substituted by one or two groups selected from halogen, hydroxy, C₁₋₃alkyl and C₁₋₃alkoxy, and Y represents a bond or a C₁₋₄alkylene, C₂₋₄alkenylene or C₂₋₄alkynylene chain, then, in both cases, R represents a C₁₋₃alkyl group and/or at least one of the chains -XCH₂- and -CH₂Y- is substituted by one or two C₁₋₃alkyl groups.
The compounds have a stimulant action at β2-adrenoreceptors and may be used in the treatment of diseases associated with reversible airways obstruction such as asthma and chronic bronchitis.
本发明提供通式 (I) 的化合物
及其生理上可接受的盐和溶剂,其中
Q 代表氯原子或三氟甲基;
X 代表键,或 C₁₋₆烯烃、C₂₋₆ 烯烃或 C₂₋₆ 炔烃链,以及 Y 代表键,或 C₁₋₆ 烯烃、C₂₋₆ 烯或 C₂₋₆ 烯链,但 X 和 Y 链中的碳原子总数不超过 10、链 XCH₂和 CH₂Y 可各自被一个或两个 C₁₋₃烷基任选取代,或当一个碳原子被两个烷基取代时,这两个烷基可连接形成一个亚烷基;
R 代表氢原子或 C₁₋₃ 烷基;
R¹ 和 R² 各代表一个氢原子或一个 C₁₋₃烷基,但 R¹ 和 R² 中的碳原子总数不超过 4 个;以及
Het 代表苯并杂芳基或单环杂芳基,其中杂芳基为 5 或 6 个成员,包含 1、2 或 3 个杂原子,其中一个为氮原子,另一个(多个)为氮原子、氧原子或硫原子、基团 Het 可任选被一个或两个选自 C₁₋₄烷基、C₁₋₄烷氧基、羟基、卤素、-NR³R⁴ 和 -COR⁸ 的基团取代;其中 R³ 和 R⁴ 各自代表氢原子或 C₁₋₄烷基或 -NR³R⁴ 形成饱和杂环氨基,该氨基具有 5-7 个环成员,并可选地在环中包含一个或多个选自 -O- 或 -S- 或基团 -NH- 或 -N(CH₃)-的原子;以及
R⁸ 代表羟基、C₁₋₄烷氧基或 -NR³R⁴;
但条件是
(i) 当 Het 代表被基团-NR³R⁴或-COR⁸取代的吡啶基且 Q 为氯原子时,或
(ii) 当 Het 代表被选自卤素、羟基、C₁₋₃烷基和 C₁₋₃ 烷氧基的一个或两个基团任选取代的吡啶基,且 Y 代表键或 C₁₋₄亚烷基、C₂₋₄烯或 C₂₋₄炔链,则在这两种情况下,R 代表 C₁₋₃ 烷基和/或 -XCH₂- 和 -CH₂Y- 链中的至少一个被一个或两个 C₁₋₃ 烷基取代。
这些化合物对 β2-肾上腺素受体有刺激作用,可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。