1: 2-fluoro-4-methyl-pyridine With lithium diisopropyl amide in tetrahydrofuran; hexane T=-78°C; 0.5 h; 2: 3-chloro-N-methoxy-N-methylbenzamide in tetrahydrofuran; hexane T=-78 - 20°C; 3: With water in tetrahydrofuran; hexane T=20°C;