Acetic Anhydride → N-{3-[5-(1-acetyl-1H-indazol-5-yl)-1H-pyrrolo[2,3-b]pyridine-3-carbonyl]-2,4-difluoro-phenyl}-2,5-difluoro-benzenesulfonamide

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Reaction Steps

Into a reaction flask, a mixture of acetic anhydride (12 mg, 0.11 mmol) and N-{2,4-difluoro-3-[5-(1H-indazol-5-yl)-1H-pyrrolo[2,3-b]pyridine-3-carbonyl]-phenyl}-2,5-difluoro-benzenesulfonamide (P-0002, 22 mg, 0.031 mmol) is stirred at room temperature overnight, then diluted with water and ethyl acetate. The organic layer is washed with saturated sodium bicarbonate, then brine and dried over sodium sulfate, filtered and the filtrate concentrated under vacuum. The resulting material is purified by silica gel column chromatography, eluting with methanol and dichloromethane. Appropriate fractions are combined and concentrated under vacuum to provide the desired compound (P-0005, 3 mg, 20%). MS (ESI) [M+H+]+=607.8.

Provenance & Evidence