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    • 15. 发明授权
    • Substituted phenylacetic acid derivatives and process for the
preparation thereof
    • 取代苯乙酸衍生物及其制备方法
    • US4161538A
    • 1979-07-17
    • US885527
    • 1978-03-10
    • Atsusuke TeradaKazuyuki WachiEiichi Misaka
    • Atsusuke TeradaKazuyuki WachiEiichi Misaka
    • C07C279/14A61K31/19C07C65/20
    • C07C279/14C07C2101/08
    • 4-(2-Oxo- or hydroxyimino-cycloalkan-1-ylmethyl)phenylacetic acid derivative and nontoxic pharmaceutically acceptable salt thereof are useful as an anti-inflammatory agent. The above 2-oxo-compound may be prepared by (a) hydrolyzing and decarboxylating 4-(1-alkoxycarbonyl-2-oxocycloalkan-1-ylmethyl)phenylacetic acid ester derivative or (b) reacting p-halomethylphenylacetic acid ester derivative with an enamine of cycloalkanone and hydrolyzing the resulting product. And further, the above 2-hydroxyimino-compound may be prepared by (c) reacting 4-(2-oxocycloalkan-1-ylmethyl)phenylacetic acid derivative (the product of process (a) or (b)) with hydroxylamine or (d) reacting a dilithium salt of cycloalkanone oxime with p-halomethyl- or p-sulfonyloxymethyl-phenylacetic acid ester derivative and hydrolyzing the resulting product.
    • 4-(2-氧代 - 或肟基 - 环烷基-1-基甲基)苯乙酸衍生物及其无毒的药学上可接受的盐可用作抗炎剂。 上述2-氧代化合物可以通过(a)水解和脱羧4-(1-烷氧基羰基-2-氧代环烷烃-1-基甲基)苯乙酸酯衍生物或(b)使对卤甲基苯乙酸酯衍生物与烯胺 的环烷酮并水解所得产物。 此外,上述2-羟基亚氨基化合物可以通过(c)使4-(2-氧代环烷烃-1-基甲基)苯乙酸衍生物(方法(a)或(b)的产物)与羟胺或(d )使环烷酮肟的二锂盐与对卤甲基 - 或对 - 磺酰氧基甲基 - 苯基乙酸酯衍生物反应并水解所得产物。