Vinyl carboxylic acid derivatives, their production and use
    44.
    发明公开
    Vinyl carboxylic acid derivatives, their production and use 失效
    乙烯基羧酸衍生物,它们的制备和用途。

    公开(公告)号:EP0111997A2

    公开(公告)日:1984-06-27

    申请号:EP83306078.3

    申请日:1983-10-07

    摘要: Novel compound of the formula:
    [wherein R 1 is a pyridyl group; R 2 is a phenyl, thienyl, furyl, naphthyl, benzothienyl or pyridyl group which may have as a substituent a lower alkoxy, a lower alkyl, a halogen, trifluoromethyl, a lower alkenyl or methylenedioxy; R 3 is hydrogen, benzyl or a lower alkyl; one of R 4 and R 5 is hydrogen or a lower alkyl, and the other is an aryloxy, or lower aliphatic hydrocarbon, an alicyclic hydrocarbon having not more than 6 carbon atoms or an aromatic group which may have a substituent, or a group represented by the formula, -S(O) m -R 6 (in which R 6 is phenyl or a lower alkyl group; m is an integer of 0 to 2), or R 4 and R 5 each combine with the other to represent an alkylene group; n is an integer of 2 to 6], or a pharmaceutically acceptable salt thereof, has a selective inhibitory action on bio-synthesis of thromboxane A 2 (TXA 2 ) and an effect of enhancing the production of prostaglandin I 2 (PGI 2 ), and can be used for mammals in the prevention and treatment of arterial thrombosis caused by platelet aggregation or ischemic diseases caused by vaso- spasms in cardiac, cerebral and peripheral circulatory systems (e.g. cardian infarction, apoplexy, infarct of blood vessels in kidney, lung and other organs, pectic ulcer, etc.).