potassium hydroxide in ethanol

1: 2-methylamino-ethanol With di-tert-butyl dicarbonate in ethyl acetate 1.5 h; Ice-cooling; 2: acetic anhydride With 4-(N,N-dimethlyamino)pyridine T=20°C; 2 h; 3: With hydrogenchloride in ethyl acetate T=20°C; 2 h;