1: 4-bromo-7-azaindole With sodium hydride in Pionier 2076; N,N-dimethyl-formamide T=0°C; 0.166667 h; Inert atmosphere; 2: trimethylsilyl ethoxymethyl chloride in Pionier 2076; N,N-dimethyl-formamide T=0 - 20°C;