申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0145260A2
公开(公告)日:1985-06-19
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)oxypoly- methylene, 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 A2 and are of value in treating a variety of disease conditions. The invention also provides processes for the manufacture of, and pharmaceutical compositions of, the compounds of formula 1.
本发明涉及式 I 的新型 1,3-二噁烷-4-基烯酸和烷酸,其中 Ra 是 (1-6C)烷基、卤素-(1-6C)烷基,Rb 是氢或与 Ra 相同,或 Ra 和 Rb 一起形成 (2-5C)polymethylene 或 (2-4C)oxypoly- methylene、n 为 2、3 或 4,A 为乙烯基或乙烯基,苯环 B 可选择带有一个取代基,二恶烷环 4 和 5 位上的取代基具有反式相对立体化学性质;及其药学上可接受的盐、(1-6C)-烷基酯和(1-6C)烷基磺酰胺。式 I 的化合物是血栓素 A2 的拮抗剂,具有治疗多种疾病的价值。本发明还提供了式 1 化合物的制造工艺和药物组合物。