Dimethylamine → 2-chloro-7-(1-ethyl-propyl)-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide

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Reaction Steps

To a solution of 2-chloro-7-(1-ethyl-propyl)-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid (80 mg, 0.30 mmol), BOP (159 mg, 0.36 mmol) and N,N-diisopropylethylamine (0.078 mL, 0.45 mmol) in DMF (3 mL) is added 0.164 mL of 2 N dimethylamine in THF solution at room temperature. The mixture is stirred at room temperature for 3 h, quenched with 1N NaOH aqueous solution, and extracted with EtOAc. The organic extracts are washed with brine, dried over Na2SO4, filtered, and concentrated under reduced pressure. The crude product is purified by column chromatography (SiO2, 5% MeOH in CH2Cl2) to give 64 mg of 2-chloro-7-(1-ethyl-propyl)-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide.

Provenance & Evidence