Hydrochloric Acid → {2,4-difluoro-3-[hydroxy-(1H-pyrrolo[2,3-b]pyridin-3-yl)-methyl]-phenyl}-carbamic acid benzyl ester

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Reaction Steps

Into a round bottom flask was added 5-chloro-1-pyrrolo[2,3-b]pyridine (6, 0.524 g, 3.43 mmol, prepared as described in Example 5) in methanol (5.00 mL, 0.123 mol). Potassium hydroxide (0.800 g, 14.2 mmol) and (2,4-difluoro-3-formyl-phenyl)-carbamic acid benzyl ester (53, 1.02 g, 3.5 mmol) were added and the reaction mixture was stirred overnight. The reaction mixture was poured into 1N HCl and extracted with ethyl acetate. The organic layer was washed with brine, dried over sodium sulfate, concentrated and crystallized from ethyl acetate to give compound 54 (710 mg, 46%). MS (ESI)[M+H+]+=444.

Provenance & Evidence