hydrogenchloride; water in methanol T=65°C; 120 h;

hydrazine hydrate in ethanol T=25°C; 2 h; Reflux;

1: (5S)-5-(aminomethyl)-3-(3-fluoro-4-iodophenyl)-1,3-oxazolidin-2-on With triethylamine in dichloromethane T=25°C; 2: acetic anhydride With 4-(N,N-dimethlyamino)pyridine in dichloromethane T=0 - 5°C; 2 h; Inert atmosphere;