The invention concerns a heterocyclic ether of the formula I
wherein Q is an optionally substituted 6-membered monocyclic or 10-membered bicyclic heterocyclic moiety containing one or two nitrogen atoms;
A is (1-6C)alkylene, (3-6C)alkenylene, (3-6C)alkynylene or cyclo(3-6C)alkylene;
X is oxy, thio, sulphinyl, sulphonyl or imino;
Ar is phenylene which may optionally bear one or two substituents or Ar is an optionally substituted 6-membered heterocyclene moiety containing up to three nitrogen atoms;
R¹ is (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl or (2-4C)alkanoyl, or optionally substituted benzoyl;
R² is (1-6C)alkyl, (2-6C)alkenyl, (2-6C)alkynyl or substituted (1-4C)alkyl; and
R³ is substituted (1-4C)alkyl;
or a pharmaceutically-acceptable salt thereof.
The compounds of the invention are inhibitors of the enzyme 5-lipoxygenase.
本发明涉及一种式 I 的杂
环醚
其中 Q 是含有一个或两个氮原子的任选取代的 6 元单环或 10 元双环杂环分子;
A 是(1-6C)亚烷基、(3-6C)烯基、(3-6C)炔基或环(3-6C)亚烷基;
X 是氧基、
硫代、亚砜基、磺酰基或亚
氨基;
Ar 是亚苯基,可任选带有一个或两个取代基,或 Ar 是任选被取代的 6 元杂环分子,最多含有三个氮原子;
R¹是(1-6C)烷基、(3-6C)烯基、(3-6C)炔基或(2-4C)烷酰基,或任选取代的苯甲酰基;
R² 是 (1-6C)烷基、(2-6C)烯基、(2-6C)炔基或取代的 (1-4C)烷基;和
R³ 是取代的 (1-4C) 烷基;
或其药学上可接受的盐。
本发明的化合物是 5-脂氧合酶的
抑制剂。