2-Pyrazinecarboxylic acid → N-(4-chloro-5-(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)pyrazine-2-carboxamide

Participants

Reaction Steps

4-Chloro-5-(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridin-3-amine (0.200 g, 0.849 mmol, Example 11, Step G) and pyrazine-2-carboxylic acid (0.221 g, 1.78 mmol) were placed in DCM (5 mL) at room temperature. BOP—Cl (0.454 g, 1.78 mmol) was then added, followed by the addition of triethylamine (0.592 mL, 4.24 mmol). The reaction was stirred for 1 hour. 3M aqueous LiOH (3 mL) was then added, and the reaction was stirred for 10 minutes. Water (10 mL) and DCM (10 mL) were then added, and the reaction was filtered. The resulting solid was slurried with 10:1 DCM:MeOH and filtered to give solid N-(4-chloro-5-(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)pyrazine-2-carboxamide (0.23 g, 79% yield).

Provenance & Evidence