申请人:Imperial Chemical Industries PLC
公开号:US04704399A1
公开(公告)日:1987-11-03
This invention concerns novel 1,3-dioxan-4-yl-alkenoic and alkanoic acids of formula I wherein Ra is (1-6C)alkyl, halogeno-(1-6C)alkyl, Rb is hydrogen or as Ra, or Ra and Rb together form (2-5C)polymethylene or (2-4C)oxypolymethylene, n is 2, 3 or 4, A is vinylene or ethylene, benzene ring B optionally bears a single substituent and the substituents at positions 4 and 5 of the dioxane ring have trans-relative stereochemistry; together with pharmaceutically acceptable salts, (1-6C)-alkyl esters and (1-6C)alkanesulphonamides thereof. The compounds of formula I are antagonists of thromboxane A.sub.2 and are of value in treating a variety of disease conditions. The invention also provides processes for the manufacture of, and pharmaceutical compostions of, the compounds of formula I.
这项发明涉及一种新颖的1,3-二氧杂环戊烯基烯酸和烷酸,其化学式为I,在该式中Ra为(1-6C)烷基、卤代(1-6C)烷基,Rb为氢或与Ra相同,或Ra和Rb共同形成(2-5C)聚亚甲基或(2-4C)氧聚亚甲基,n为2、3或4,A为乙烯基或乙烷基,苯环B可选地带有一个取代基,二氧杂环戊烷环的4和5位取代基具有反式立体化学构型;以及与药用盐、(1-6C)烷基酯和(1-6C)烷磺酰胺一起的化合物。式I的化合物是血栓素A.sub.2的拮抗剂,并且在治疗各种疾病条件方面具有价值。该发明还提供了制造该式化合物的方法和药用组合物。