| 摘要 |
A process for producing 2-cyclopropyl-4-(4-fluorophenyl)-quinoline-3-carbaldehyde important as intermediate for the synthesis of pharmaceuticals, efficiently from an unnecessary antipode, is provided. <??>A process for producing 2-cyclopropyl-4-(4-fluorophenyl)-quinoline-3-carbaldehyde represented by the formula (III): <CHEM> which comprises treating a compound represented by the formula (I) or (II): <CHEM> (wherein A is -CHOH or -C(O)-, and R is a hydrogen atom, a C1-4 alkyl group which may be branched, a phenyl group, an alkali metal ion or an alkaline earth metal ion) with ozone, followed by reduction with an inorganic sulfur compound or by hydrogenation for reduction decomposition. |
