申请人:Imperial Chemical Industries PLC
公开号:US05254581A1
公开(公告)日:1993-10-19
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)alkcxycarbonyl 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.
该发明涉及公式I的环醚衍生物,其中Ar.sup.1是可选取代的苯基、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)烷基的链;X.sup.1是氧、硫、亚硫酰基、砜基或亚砜基;Ar.sup.2是可选取代的苯基或吡啶基;R.sup.1包括氢、(1-4C)烷基、(1-4C)烷基羰基和(1-4C)烷基硫基;而R.sup.2和R.sup.3一起形成一个具有5到7个环原子的环的基团,该环由A.sup.2和A.sup.3连接到的碳原子以及A.sup.2和A.sup.3定义,其中每个A.sup.2和A.sup.3是(1-3C)烷基,X.sup.2是氧、硫、亚硫酰基或砜基;或其药用可接受盐。该发明的化合物是5-脂氧合酶的抑制剂。