Potassium Carbonate → Methyl 3-(2-{3-[(tert-butoxycarbonyl)amino]phenyl}ethyl)-5-[(2,5-dichloropyrimidin-4-yl)amino]benzoate

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Reaction Steps

A solution of 2,4,5-trichloropyrimidine (0.371 mL, 3.24 mmol) and methyl 3-amino-5-(2-{3-[(tert-butoxycarbonyl)amino]phenyl}ethyl)benzoate (1.20 g, 3.24 mmol) in DMF (20 mL) and potassium carbonate (895 mg, 6.48 mmol) were stirred at 60° C. overnight. The reaction mixture was diluted with 1 N HCl and extracted with ethyl acetate three times. The combined organic solutions were dried with sodium sulfate, filtered, and concentrated in vacuo. The crude residue was purified by flash column chromatography to yield the desired product (1.20 g, 72%). LCMS for C25H26Cl2N4O4Na (M+Na)+: m/z=539.3, 541.3.

Provenance & Evidence