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-氧代或羟基
亚胺基环烷基甲基)
苯乙酸衍
生物及其无毒药用盐可用作抗炎药剂。上述2-氧代化合物可以通过以下方法制备:(a)
水解和脱羧4-(1-烷氧羰基-2-氧代环烷基甲基)
苯乙酸酯衍
生物,或(b)将对卤代甲基
苯乙酸酯衍
生物与环烷酮的烯胺反应,然后
水解生成的产物。此外,上述2-羟基
亚胺化合物可以通过以下方法制备:(c)将4-(2-氧代环烷基甲基)
苯乙酸衍
生物(过程(a)或(b)的产物)与
羟胺反应,或(d)将环烷酮
羟胺二
锂盐与对卤代甲基或对磺酰氧基甲基
苯乙酸酯衍
生物反应,然后
水解生成的产物。