1: With acetic anhydride; acetic acid T=20°C; 0.5 h; 2: With triethylsilane; palladium dichloride T=70 - 75°C; 2.5 h; 3: With hydrogenchloride in ethanol

1: With methanol; sodium methylate T=20°C; 6 h; Inert atmosphere; 2: With ammonium chloride in methanol T=20°C; 18 h; Inert atmosphere;

ammonia