sodium hydroxide; tetra(n-butyl)ammonium hydrogensulfate in dichloromethane; water T=25°C; 12 h;

1: 1H-Pyrrolo[2,3-b]pyridine With pyridine; iodine cloride in dichloromethane T=0 - 20°C; 0.75 h; 2: benzenesulfonyl chloride With 4-(N,N-dimethlyamino)pyridine; triethylamine in dichloromethane T=20°C; 18 h;

potassium acetate; dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II) dichloromethane adduct in N,N-dimethyl-formamide T=90°C; 2 h;

1: 1-benzene-sulfonyl-3-iodo-1H-pyrrolo[2,3-b]pyridine With N-ethyl-N,N-diisopropylamine; lithium diisopropyl amide in tetrahydrofuran T=-78°C; 2: benzenesulfonyl chloride in tetrahydrofuran T=25°C; 12 h;