申请人:ZENECA LIMITED
公开号:EP0466452A2
公开(公告)日:1992-01-15
The invention concerns a thioxo heterocycle of the formula I
wherein Q is a 10-membered bicyclic heterocyclic moiety containing 1 or 2 N's which bears 1 or 2 thioxo substituents and which is optionally further substituted ;
A1 is a direct link to X1 or (1-3C)alkylene ;
X1 is oxy, thio, sulphinyl, sulphonyl or imino;
Ar is optionally substituted phenylene or pyridylene ;
R1 is (1-4C)alkyl, (3-4C)alkenyl or (3-4C)alkynyl; 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 5 to 7 ring atoms, wherein each of A2 and A3 is (1-3C)alkylene and X2 is oxy, thio, sulphinyl or sulphonyl ;
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 的硫酮杂环
其中 Q 是含有 1 个或 2 个 N 的 10 元双环杂环分子,该分子带有 1 个或 2 个硫酮取代基,并可选择被进一步取代;
A1 是与 X1 或 (1-3C) 亚烷基的直接连接;
X1 是氧基、硫代、亚砜基、磺酰基或亚氨基;
Ar 是任选取代的亚苯基或吡啶基;
R1 是 (1-4C)烷基、(3-4C)烯基或 (3-4C)炔基;以及
R2 和 R3 共同组成式 -A2-X2-A3- 的基团,该基团与 A2 和 A3 所连接的碳原子一起
其中 A2 和 A3 均为 (1-3C)亚烷基,X2 为氧基、硫基、亚砜基或磺酰基;
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。