1: 2,2-Dimethyl-N-(5-methyl-2-pyridinyl)propanamide With n-butyllithium in tetrahydrofuran; hexane T=0°C; 3 h; 2: 3-dimethylaminoacrylaldehyde in tetrahydrofuran; hexane T=-70 - 0°C; 3 h; 3: With hydrogenchloride Heating;