acetic acid T=70°C; 4.5 h;

1: 5-Methoxy-1H-indole; 2,2,2-trichloroacetyl chloride With pyridine in tetrahydrofuran T=0 - 20°C; Inert atmosphere; 2: methanol With potassium hydroxide; water RefluxInert atmosphere;

carbon monoxide; [Rh(CO)2(Me2NCH2CH2NMe2)][RhCl2(CO)2] in tetrahydrofuran T=100°C; P=5171.62 Torr; 20 h; Autoclave;