申请人:ZENECA LIMITED
公开号:EP0385662A2
公开(公告)日:1990-09-05
The invention concerns a heterocycle 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 hydrogen, (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl, cyano-(1-4C)alkyl or (2-4C)alkanoyl, or optionally substituted benzoyl;
and R² and R³ together form a group of the formula -A²-X²-A³- which, together with the carbon atom to which A² and A³ are attached, defines a ring having 4 to 7 ring atoms, wherein A² and A³, which may be the same or different, each is (1-4C)alkylene and X² is oxy, thio, sulphinyl, sulphonyl or imino;
or a pharmaceutically-acceptable salt thereof.
The compounds of the invention are inhibitors of the enzyme 5-lipoxygenase.
本发明涉及式 I 的杂环
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,或者 Ar 是任选被取代的含有最多三个氮原子的 6 元杂环分子;
R¹是氢、(1-6C)烷基、(3-6C)烯基、(3-6C)炔基、氰基-(1-4C)烷基或(2-4C)烷酰基,或任选取代的苯甲酰基;
与 R² 和 R³ 一起形成式 -A²-X²-A³- 的基团,该基团与 A² 和 A³ 所连接的碳原子一起定义了一个具有 4 至 7 个环原子的环,其中 A² 和 A³ 可以相同或不同,各自为 (1-4C)烷基,X² 为氧基、硫基、亚砜基、磺酰基或亚氨基;
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。