The invention concerns novel 1,3-dioxane alkenoic acid derivatives of the formula I
wherein : n is the integer 1 or 2 ;
Y is methyleneoxy, vinylene or ethylene ;
A1 is (1-6C)alkylene ;
R1 is a group of the formula R2.A2-, in which :
R2 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 ;
A2 is a direct bond to R2 or a group of the formula -W-C(R4)(R5)-wherein W is oxygen, methylene or a direct bond to R2, and R4 and R5 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
R3 is hydroxy, a physiologically acceptable alcohol residue, or (1-4C)alkanesulphonamido ;
or a pharmaceutically acceptable salt thereof. The compounds are thromboxane A2 antagonists and inhibitors of thromboxane A2 synthase, and are useful on the treatment of a variety of diseases in which thromboxane A2 is involved, such as is ischaemic heart disease, cerebrovascular disease and peripheral vascular disease. The invention also includes processes for the manufacture and use of the compounds, and pharmaceutical compositions containing them.
本发明涉及式 I 的新型 1,3-
二恶烷烯酸衍
生物
其中:n 为整数 1 或 2;
Y 是亚甲基氧基、
乙烯基或
乙烯基;
A1 是(1-6C)亚烷基;
R1 是式 R2.A2- 的基团,其中:
R2 是未取代的苯基或最多带有三个取代基,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
硫基、(1-6C)烷基磺酰基、卤素、三
氟甲基、硝基和
氰基;
A2 是 R2 的直接键或式-W-C(R4)(R5)-的基团,其中 W 是氧、亚甲基或 R2 的直接键,R4 和 R5 独立地是 (1-4C)烷基;
Q 是杂环基团,选自
噻唑-5-基和
咪唑-5-基,后者是未取代的或在
咪唑环的 1 位上带有一个 (1-12C) 烷基;以及
R3 是羟基、生理上可接受的醇残基或 (1-4C)烷磺酰胺基;
或其药学上可接受的盐。这些化合物是血栓素 A2 拮抗剂和血栓素 A2 合成酶
抑制剂,可用于治疗血栓素 A2 所涉及的各种疾病,如缺血性心脏病、脑血管疾病和外周血管疾病。本发明还包括制造和使用这些化合物的工艺以及含有这些化合物的药物组合物。