Trifluoroacetic acid → [6-(6-ethoxy-pyridin-3-ylamino)-2-fluoro-pyridin-3-yl]-(5-methyl-1H-pyrrolo[2,3-b]pyridin-3-yl)-methanone

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Reaction Conditions

Reaction Steps

To (6-ethoxy-pyridin-3-yl)-[6-fluoro-5-(5-methyl-1-triisopropylsilanyl-1H-pyrrolo[2,3-b]pyridine-3-carbonyl)-pyridin-2-yl]-carbamic acid tert-butyl ester (71, 0.200 g, 0.309 mmol) in 10 mL of 1,2-dichloroethane, trifluoroacetic acid (0.80 mL, 10.0 mmol) is added. The reaction is stirred at 80° C. for 2 hours, then poured into aqueous potassium carbonate and extracted with ethyl acetate. The organic layer is dried over sodium sulfate, filtered and the filtrate concentrated under vacuum. The resulting material is purified by silica gel column chromatography, eluting with 2-15% methanol in dichloromethane. Appropriate fractions are combined and concentrated under vacuum to provide the desired compound (P-3045, 60.7 mg). MS (ESI) [M+H+]+=391.9.

Provenance & Evidence