申请人:Imperial Chemical Industries, Inc.
公开号:US05407945A1
公开(公告)日:1995-04-18
The invention concerns a cyclic ether derivative of the formula I ##STR1## wherein Ar.sup.1 is optionally substituted phenyl, naphthyl or a 9- or 10-membered bicyclic heterocyclic moiety; A.sup.1 is a direct link to X.sup.1 or (1-3C)alkylene; X.sup.1 is oxy, thio, sulphinyl, sulphonyl or imino; Ar.sup.2 is optionally substituted phenylene or pyridylene; R.sup.1 includes hydrogen, (1-4C)alkyl, (1-4C)alkoxycarbonyl and (1-4C)alkylthio; and R.sup.2 and R.sup.3 together form a group of the formula --A.sup.2 --X.sup.2 --A.sup.3 -- which, together with the carbon atom to which A.sup.2 and A.sup.3 are attached, defines a ring having 5 to 7 ring atoms, wherein each of A.sup.2 and A.sup.3 is (1-3C)alkylene and X.sup.2 is oxy, thio, sulphinyl or sulphonyl; or a pharmaceutically-acceptable salt thereof. The compounds of the invention are inhibitors of the enzyme 5-lipoxygenase.
本发明涉及公式I的环醚衍生物:##STR1## 其中,Ar.sup.1是可选取的取代苯基、萘基或9-或10-成员的双环杂环基;A.sup.1是直接连接到X.sup.1或(1-3C)烷基;X.sup.1是氧、硫、亚砜、磺酰或亚磺酰;Ar.sup.2是可选取的取代苯基或吡啶基;R.sup.1包括氢、(1-4C)烷基、(1-4C)烷氧基羰基和(1-4C)烷基硫基;R.sup.2和R.sup.3一起形成一个式子的基团--A.sup.2--X.sup.2--A.sup.3--,其中,A.sup.2和A.sup.3都是(1-3C)烷基,X.sup.2是氧、硫、亚砜或磺酰基;或其药学上可接受的盐。本发明的化合物是5-脂氧合酶酶的抑制剂。