2(1H)-pyridinones and preparation, useful as cardiotonics
    1.
    发明公开
    2(1H)-pyridinones and preparation, useful as cardiotonics 失效
    2(1H) - 吡啶酮和Herstellung,brauchbar als Cardiotonica。

    公开(公告)号:EP0109628A1

    公开(公告)日:1984-05-30

    申请号:EP83111303.0

    申请日:1983-11-11

    摘要: 3,4-Dihydro-3-R 1 -4-R 2 -5-Q-6-R-2 (1H)-pyridinones (I), where R 1 and R 2 are each hydrogen or methyl, R is lower-alkyl, and Q is 4 (or 3)-hydroxyphenyl, 4 (or 3)-methoxyphenyl, 4 (or 3)-pyridinyl or 4 (or 3)-pyridinyl having one or two lower-alkyl substituents, or acid-addition salts thereof, as well as the corresponding 3-R 1 -4-R 2 -5-Q-6-R-2 (1H)-pyridinones where at least one of R 1 and R 2 is methyl. The compounds have cardiotonic use when Q is 4 (or 3)-hydroxyphenyl, 4 (or 3)-pyridinyl or 4 (or 3)-pyridinyl having one or two lower-alkyl substituents. Said compounds are prepared from butanenitriles, butanoates, acrylamides or mixtures of alkanones and acetoacetamide, with optional conversion of the 3,4-dihydro compounds obtained to the 3,4-unsaturated compounds by heating with sulfur in an inert solvent and conversion of the methoxyphenyl compounds to the hydroxyphenyl compounds.

    摘要翻译: 3,4-二氢-3-R1-4-R2-5-Q-6-R-2(1H) - 吡啶酮(I),其中R1和R2各自为氢或甲基,R为低级烷基,Q为 是具有一个或两个低级烷基取代基的4(或3) - 羟基苯基,4(或3) - 甲氧基苯基,4(或3) - 吡啶基或4(或3) - 吡啶基,或其酸加成盐 作为其中R 1和R 2中的至少一个为甲基的相应的3-R1-4-R2-5-Q-6-R-2(1H) - 吡啶酮。 当Q为具有一个或两个低级烷基取代基的4(或3) - 羟基苯基,4(或3) - 吡啶基或4(或3) - 吡啶基时,化合物具有强心使用。 所述化合物由丁腈,丁酸酯,丙烯酰胺或链烷酮和乙酰乙酰胺的混合物制备,并且通过在惰性溶剂中用硫加热将所得的3,4-二氢化合物任选转化为3,4-不饱和化合物,并将甲氧基苯基 化合物与羟基苯基化合物反应。