Water → tert-butyl 3-(4-bromo-3-(5-fluoro-1-methylindolin-6-yl)-1H-pyrrolo[2,3-b]pyridin-1-yl)azetidine-1-carboxylate

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Reaction Conditions

Reaction Steps

To a mixture of tert-butyl 3-(4-bromo-3-iodo-1H-pyrrolo[2,3-b]pyridin-1-yl)azetidine-1-carboxylate (D31) (118 mg, 0.247 mmol), 5-fluoro-1-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)indoline, hydrochloride (85 mg, 0.271 mmol) in DME (2 mL) and MeOH (0.222 mL) was added bis(triphenylphosphine)palladium(II) chloride (17.32 mg, 0.025 mmol) and 2M sodium carbonate aq. solution (1.234 mL, 2.468 mmol). The mixture was stirred at 60° C. for 1 hour. The mixture was cooled to RT. Water (30 mL) was added and was extracted with ethyl acetate (3×50 mL). The combined organics were dried over magnesium sulfate, filtered and solvent removed in vacuo to give a residue which was purified on normal phase chromatography eluting with ethyl acetate in cyclohexane (0-50%) to give the title compound (84 mg). LCMS (A): m/z (M+H)+ 501/503, C24H26BrFN4O2 requires 500/502 (acidic).

Provenance & Evidence