| 摘要 |
The present invention relates to a process for the preparation of 1-(2-ethyl-butyl)- cyclohexanecarboxylic acid which is useful as an intermediate in the preparation of pharmaceutical active compounds, wherein cyclohexanecarboxylic acid alkali metal salt reacts with an alkylating agent in the presence of a secondary amine and (C 1 -C 6 ) alkyllithium, (C 3 -C 6 ) cycloalkyllithium or phenyllithium.
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