66342-64-1Relevant academic research and scientific papers
Substituted phenylacetic acid derivatives and process for the preparation thereof
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, (2008/06/13)
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.
