申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0094239A2
公开(公告)日:1983-11-16
he invention concerns novel 4-phenyl-1,3-dioxan -5-ylalkenoic acid derivatives of the formula I having is relative stereochemistry at positions 4 and 5 of the dioxane ring and wherein Ra and Rb are variously hydrogen, alkyl, halogenoalkyl, alkenyl, and optionally substituted aryl or arylalkyl, Rc is hydroxy, alkoxy or alkanesulphonamido, n is 1 or 2, A is ethylene or vinylene, Y is (2-5C)polymethylene optionally substituted by alkyl, and benzene ring B is optionally substituted phenyl, or, when Rc is hydroxy, a salt thereof. The acid derivatives antagonise one or more of the actions of thromboxane A2 (TXA2) and are expected to be of value in those disease conditions in which TXA2 is involved. The invention also provides pharmaceutical compositions containing an acid derivative of formula 1, and processes for their chemical production.
本发明涉及式 I 的新型 4-苯基-1,3-二噁烷-5-基烯酸衍生物,其二噁烷环的第 4 位和第 5 位具有相对立体化学结构,其中 Ra 和 Rb 分别为氢、烷基、卤代烷基、烯基和任选取代的芳基或芳烷基,Rc 为羟基、烷氧基或烷磺酰胺基,n 为 1 或 2,A 为乙烯或乙烯基,Y 为(1,3-二噁烷-5-基烯酸)、和任选取代的芳基或芳烷基,Rc 是羟基、烷氧基或烷磺酰胺基,n 是 1 或 2,A 是乙烯或乙烯基,Y 是任选被烷基取代的(2-5C)聚亚甲基,苯环 B 是任选取代的苯基,或当 Rc 是羟基时,是其盐。这些酸衍生物可拮抗血栓素 A2(TXA2)的一种或多种作用,因此有望在涉及 TXA2 的疾病中发挥重要作用。本发明还提供了含有式 1 酸衍生物的药物组合物及其化学生产工艺。