Acetonitrile → propane-1-sulfonic acid {3-[5-(6-chloro-pyridin-3-yl)-1H-pyrrolo[2,3-b]pyridine-3-carbonyl]-2,4-difluoro-phenyl}-amide

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Reaction Steps

Propane-1-sulfonic acid [3-(5-bromo-1H-pyrrolo[2,3-b]pyridine-3-carbonyl)-2,4-difluoro-phenyl]-amide (56, 10 mg, 0.022 mmol) was weighed into a 5 mL microwave vial and combined with 6-chloro-pyridine-3-boronic acid (72, 4.4 mg, 0.028 mmol), followed by the addition of 600 μL of acetonitrile and 500 μL of 1M potassium carbonate and a spatula tip (˜1 mg) of [1,1″-bis(diphenylphosphino)-ferrocene]dichloropalladium(II). The reaction mixture was irradiated in a microwave at 160° C. for 5 minutes. The solution was neutralized with 100 μL of acetic acid and all material was transferred to a 4 mL vial and the solvents were removed under vacuum. The crude material was dissolved in 400 μL of dimtheylsulfoxide and purified by reverse phase HPLC, eluting with 0.1% trifluoroacetic acid in water and 0.1% trifluoroacetic acid in acetonitrile, 20-100% acetonitrile over 16 minutes at 6 mL per minute. Appropriate fractions were combined and the solvent removed under reduced pressure to provide the desired compound. MS (ESI) [M+H+]+=491.1.

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