申请人:Imperial Chemical Industries PLC
公开号:US05219874A1
公开(公告)日:1993-06-15
The invention concerns novel 1,3-dioxane alkenoic acid derivatives of the formula I ##STR1## wherein: n is the integer 1 or 2; Y is methyleneoxy, vinylene or ethylene; A.sup.1 is (1-6C)alkylene; R.sup.1 is a group of the formula R.sup.2.A.sup.2 --, in which: R.sup.2 is phenyl unsubstituted or bearing up to three substituents which are independently selected from (1-6C)alkyl, (1-6C)alkoxy, (2-6C)alkanoyl, (1-6C)alkylthio, (1-6C)alkylsulphonyl, halogeno, trifluoromethyl, nitro and cyano; A.sup.2 is a direct bond to R.sup.2 or a group of the formula --W--C(R.sup.4)(R.sup.5)-- wherein W is oxygen, methylene or a direct bond to R.sup.2, and R.sup.4 and R.sup.5 are independently (1-4C)alkyl; Q is a heterocyclyl group selected from thiazol-5-yl and imidazol-5-yl, the latter being unsubstituted or bearing a (1-12C)alkyl group at the 1-position of the imidazole ring; and R.sup.3 is hydroxy, a physiologically acceptable alcohol residue, or (1-4C)alkanesulphonamido; or a pharmaceutically acceptable salt thereof. The compounds are thromboxane A.sub.2 antagonists and inhibitors of thromboxane A.sub.2 synthase.
该发明涉及公式I的新型1,3-二噁烷烯酸衍生物,其中:n是整数1或2;Y是亚甲氧基、乙烯基或乙烷基;A.sup.1是(1-6C)烷基;R.sup.1是公式R.sup.2.A.sup.2--的基团,其中:R.sup.2是未取代的苯基或带有最多三个取代基,这些取代基独立地选自(1-6C)烷基、(1-6C)烷氧基、(2-6C)烷酰基、(1-6C)烷基硫醚基、(1-6C)烷基磺酰基、卤素、三氟甲基、硝基和氰基;A.sup.2是与R.sup.2直接键合或公式--W--C(R.sup.4)(R.sup.5)--的基团,其中W是氧、亚甲基或与R.sup.2直接键合,而R.sup.4和R.sup.5独立地是(1-4C)烷基;Q是从噻唑-5-基和咪唑-5-基中选择的杂环基团,后者未取代或在咪唑环的1-位置带有(1-12C)烷基基团;而R.sup.3是羟基、生理上可接受的醇基团,或(1-4C)烷磺酰胺基团;或其药学上可接受的盐。这些化合物是血栓素A.sub.2拮抗剂和血栓素A.sub.2合酶的抑制剂。