申请人:Imperial Chemical Industries PLC
公开号:US05196419A1
公开(公告)日:1993-03-23
The invention concerns a heterocyclic cyclic ether of the formula I ##STR1## 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; R.sup.1 and R.sup.2 together form a group of the formula --A.sup.2 --X.sup.2 --A.sup.3 -- which, together with the oxygen atom to which A.sup.2 is attached and with the carbon atom to which A.sup.3 is attached, defines a ring having 5 to 7 ring atoms, wherein A.sup.2 and A.sup.3 each is (1-3C)alkylene and X.sup.2 is oxy, thio, sulphinyl, sulphonyl or imino, and which ring may bear one, two or three substituents; and R.sup.3 is hydrogen, (1-6C)alkyl, (2-6C)alkenyl, (2-6C)alkynyl or substituted (1-4C)alkyl; or a pharmaceutically-acceptable salt thereof. The compounds of the invention are inhibitors of the enzyme 5-lipoxygenase.
该发明涉及一种具有以下式I的杂环环氧化物
其中Q是含有一个或两个氮原子的可选择取代的6-成员单环或10-成员双环杂环基; A是(1-6C)烷基,(3-6C)烯基,(3-6C)炔基或环(3-6C)烷基; X是氧,硫,亚砜,磺酰基或亚胺; Ar是苯基,可能可选择携带一个或两个取代基,或Ar是一个可选择取代的含有最多三个氮原子的6-成员杂环基; R1和R2一起形成一个具有以下式--A2--X2--A3--的基团,与A2连接的氧原子和与A3连接的碳原子一起,定义具有5至7个环原子的环,其中A2和A3各自是(1-3C)烷基,X2是氧,硫,亚砜,磺酰基或亚胺,该环可以携带一个、两个或三个取代基; R3是氢,(1-6C)烷基,(2-6C)烯基,(2-6C)炔基或取代的(1-4C)烷基;或其药用盐。该发明的化合物是5-脂氧合酶的抑制剂。