申请人:Imperial Chemical Industries PLC
公开号:US05202326A1
公开(公告)日:1993-04-13
The invention concerns a heterocyclic 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 is (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl or (2-4 C)alkanoyl, or optionally substituted benzoyl; R.sup.2 is (1-6C)alkyl, (2-6C)alkenyl, (2-6C)alkynyl or substituted (1-4C)alkyl; and R.sup.3 is 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的杂环醚##STR1##其中Q是含有一个或两个氮原子的可选取代的6-成员单环或10-成员双环杂环基团;A是(1-6C)烷基、(3-6C)烯基、(3-6C)炔基或环(3-6C)烷基;X是氧、硫、亚砜基、磺酰基或亚胺基;Ar是苯基,可以选择性地带有一个或两个取代基,或Ar是含有最多三个氮原子的可选取代的6-成员杂环基团;R.sup.1是(1-6C)烷基、(3-6C)烯基、(3-6C)炔基或(2-4C)烷酰基,或可选地取代的苯甲酰基;R.sup.2是(1-6C)烷基、(2-6C)烯基、(2-6C)炔基或取代的(1-4C)烷基;R.sup.3是取代的(1-4C)烷基;或其药用可接受的盐。该发明的化合物是5-脂氧合酶的抑制剂。