Water → 2-(5-(2-Chloro-4-(propylamino)pyrimidin-5-yl)-4-pentyn-1-yl)isoindoline-1,3-dione

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

To a solution of 2-chloro-5-iodo-N-propylpyrimidin-4-amine (F1, 1.45 g), N-(4-pentynyl)phthalimide (2.08 g), bis(triphenylphosphine)palladium(II) dichloride (171 mg) and copper(I) iodide (47 mg) in N,N-dimethylformamide (15 mL), triethylamine (3.4 mL) was added at room temperature, and the mixture was stirred at 60° C. for 1 hour and 15 minutes. The reaction mixture was cooled to room temperature, and then water and ethyl acetate were added to the reaction mixture. The organic layer was separated, washed successively with saturated aqueous sodium hydrogencarbonate, water and saturated aqueous sodium chloride, and then dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by basic silica gel column chromatography (eluent, 70 to 40% hexane in ethyl acetate) to obtain 2-(5-(2-chloro-4-(propylamino)pyrimidin-5-yl)-4-pentyn-1-yl)isoindoline-1,3-dione (K1, 2.00 g).

Herkunft & Nachweise