申请人:Imperial Chemical Industries PLC
公开号:US05234950A1
公开(公告)日:1993-08-10
The invention concerns a heterocyclic derivative of the formula I, ##STR1## wherein Ar.sup.1 is optionally substituted phenyl or naphthyl; A.sup.1 is (1-6C)alkylene, (3-6C)alkenylene, (3-6C)alkynylene or cyclo-(3-6C)alkylene; Ar.sup.2 is optionally substituted phenylene, or a 6 membered heterocyclene moiety containing up to three nitrogen atoms; R.sup.1 is hydrogen, (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl, cyano-(1-4C)alkyl or (2-4C)alkanoyl, or optionally substituted benzoyl; and R.sup.2 and R.sup.3 together form a group of the formula --A.sup.2 --X--A.sup.3 -- wherein each of A.sup.2 and A.sup.3 is (1-4C)alkylene and X is oxy, thio, sulphinyl, sulphonyl or imino; 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的杂环衍生物,其中Ar.sup.1是可选取代的苯基或萘基;A.sup.1是(1-6C)烷基,(3-6C)烯基,(3-6C)炔基或环-(3-6C)烷基;Ar.sup.2是可选取代的苯基,或含有最多三个氮原子的6元杂环基;R.sup.1是氢,(1-6C)烷基,(3-6C)烯基,(3-6C)炔基,氰基-(1-4C)烷基或(2-4C)酰基,或可选取代的苯甲酰基;R.sup.2和R.sup.3共同形成公式--A.sup.2--X--A.sup.3--的基团,其中每个A.sup.2和A.sup.3是(1-4C)烷基,X是氧,硫,亚磺酰基,磺酰基或亚胺基;或其药学上可接受的盐。本发明化合物是5-脂氧合酶酶的抑制剂。