The invention concerns novel [(4-phenyl-1,3-dioxan-cis-5-yl)alkyl]phenylalkanoic acids of the formula I wherein Ra and Rb are a variety of substituents including alkyl, alkenyl, halogenoalkyl, phenyl and benzyl, or together form polymethylene; Rc is hydroxy, alkoxy or alkanesulphonamido; A.sup.1 and A.sup.2 are polymethylene; X is oxygen, sulphur or a direct bond; and benzene ring A bears a variety of substituents; and, when Rc is hydroxy, the physiologically acceptable salts thereof. The compounds of formula I are thromboxane antagonists 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 I.
本发明涉及一种新型[(4-苯基-1,3-二氧杂环戊基)烷基]苯基
脂肪酸I的化合物,其中Ra和Rb是各种取代基,包括烷基,烯基,卤代烷基,苯基和苄基,或共同形成聚亚甲基;Rc是羟基,烷氧基或烷基磺酰胺基;A.sup.1和A.sup.2是聚亚甲基;X是氧,
硫或直接键;苯环A带有各种取代基;当Rc为羟基时,其生理学上可接受的盐。公式I化合物是治疗各种疾病的血栓素拮抗剂。本发明还提供了制备公式I化合物的方法和制药组合物。