1: 4-fluoro-1H-pyrrolo[2,3-b]pyridine With AlCl3, aluminium chloride in dichloromethane T=20°C; 0.5 h; 2: 2-bromo acetyl bromide in dichloromethane T=50°C; 1 h; 3: With water in dichloromethane T=100°C;

1: in ethanol T=70°C; 1 h; 2: With sodium carbonate in water pH=~ 7.5;