The invention concerns a heterocyclene 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 5-membered heterocyclene moiety; R.sup.1 is (1-4C)alkyl, (3-4C)alkenyl or (3-4C)alkynyl; 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.
该发明涉及一种异环
丙烯衍
生物,其
化学式为I,其中Ar.sup.1是可选择取代的
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、磺酰基或
亚胺基;Ar.sup.2是可选择取代的5-成员杂环基;R.sup.1是(1-4C)烷基、(3-4C)
烯基或(3-4C)炔基;而R.sup.2和R.sup.3共同形成一个
化学式为--A.sup.2--X.sup.2--A.sup.3--的基团,该基团与A.sup.2和A.sup.3所连接的
碳原子一起定义具有5到7个环原子的环,其中A.sup.2和A.sup.3各自是(1-3C)烷基,X.sup.2是
氧、
硫、亚
硫酰基或磺酰基;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。