1: 3-bromo-4-chloro-5-phenyl-1H-pyrrolo[2,3-b]pyridine With sodium hydride in N,N-dimethyl-formamide T=0°C; 0.333333 h; 2: benzenesulfonyl chloride in N,N-dimethyl-formamide T=0°C; 0.5 h;

tetrakis(triphenylphosphine) palladium(0) in tetrahydrofuran T=80°C; 2 h;