Chloroacetaldehyde → 2-(5-methoxy-1-methyl-1H-indol-3-yl)-3-((2-(trimethylsilyl)ethoxy)methyl)-3H-imidazo[1,2-a]pyrrolo[2,3-e]pyrazine

Participants

Reaction Conditions

Reaction Steps

In a round flask was added 6-(5-methoxy-1-methyl-1H-indol-3-yl)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazin-2-amine (0.065 g, 0.15 mmol) and 2-chloroacetaldehyde (˜50 wt % solution in water, 0.030 mL, 0.23 mmol) in EtOH (2 mL) and mixture was heated to about 80° C. for about 45 min. The mixture was concentrated under reduced pressure to give 2-(5-methoxy-1-methyl-1H-indol-3-yl)-3-((2-(trimethylsilyl)ethoxy)methyl)-3H-imidazo[1,2-a]pyrrolo[2,3-e]pyrazine (0.065 g, 95%): LC/MS (Table 2, b) Rt=1.79 min; MS m/z 448 (M+H)+.

Provenance & Evidence