Continuing work on the synthesis and examination of the biological activity of 2-R'-4-R- quinolines, it was considered desirable to develop convenient methods for the synthesis of 2- cycloalkylquinoline-4-carboxylic acids and their derivatives. In this connection, it was of importance to establish the influence of a cycloalkyl substituent in the 2-position of the quinoline ring on biological activity. This made it possible to compare the properties and ...