Dimethylformamide → HCID 23153052, compound

Participants

Reaction Steps

To a solution of 4-(4-amino-3-methylphenoxy)pyridin-2-ylamine (765 mg, 3.55 mmol) in N,N-dimethylformamide (15.0 ml) were added N-(4-fluorophenyl)malonic acid (770 mg, 3.91 mmol), triethylamine (0.544 ml, 3.91 mmol) and benzotriazol-1-yloxytris(dimethylamino)phosphonium hexafluorophosphate (1.73 g, 3.91 mmol), followed by stirring at room temperature for 13 hrs. The reaction mixture was partitioned between ethyl acetate (200 ml) and a saturated aqueous solution of sodium hydrogencarbonate (80 ml). The organic layer was washed with water and brine, and dried over anhydrous sodium sulfate. The solvent was evaporated to give a residue, which was then subjected to silica gel column chromatography (ethyl acetate, then ethyl acetate/methanol=20/1 to 10/1). To the resultant crude product were added ethanol (0.5 ml) and diethyl ether (10 ml) to suspend. A solid was filtered off, washed with diethyl ether, and dried under aeration to provide the titled compound (805 mg, 57.5%) as pale yellow powder.

Provenance & Evidence