4-Aminobenzonitrile → 4-[7-benzyl-2-(4-cyano-phenylamino)-7H-pyrrolo[2,3-d]pyrimidin-4-yloxy]-3,5-dimethyl-benzonitrile

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Reaction Steps

To a solution of 4-aminobenzonitrile (54 mg, 0.46 mmol) in 1-methyl-2-pyridone (1 mL) was added NaH (18 mg, 0.46 mmol). The reaction mixture was stirred at room temperature for 15 min and a solution of 4-(7-benzyl-2-fluoro-7H-pyrrolo[2,3-d]pyrimidin-4-yloxy)-3,5-dimethyl-benzonitrile (34 mg, 0.091 mmol) in 1-methyl-2-pyridone (1 mL) was added to the mixture. The mixture was stirred at room temperature for 1 h, poured into ice water, and extracted with EtOAc (2×20 mL). The combined organic solution was washed with H2O (20 mL) and brine (20 mL), dried with Na2SO4, and concentrated to dryness. Silica gel chromatography (Hexanes:EtOAc=75:25) yielded 28 mg (65%) of 4-[7-benzyl-2-(4-cyano-phenylamino)-7H-pyrrolo[2,3-d]pyrimidin-4-yloxy]-3,5-dimethyl-benzonitrile.

Provenance & Evidence