Dimethylformamide → HCID 23153513, compound

Participants

Reaction Steps

To a solution of N-[4-(2-aminopyridin-4-yloxy)-2-methylphenyl]-N′-(4-fluorophenyl)malonamide (60 mg) in tetrahydrofuran (6 ml)-N,N-dimethylformamide (0.090 ml) was added triethylamine (0.042 ml), and then phenyl chloroformate (0.038 ml) was added thereto while cooling in an ice water bath, followed by stirring for 20 min. The reaction mixture was concentrated under a reduced pressure. To a suspension of the residue in N,N-dimethylformamide (2.4 ml) were added diethylamine hydrochloride (61 mg) and triethylamine (0.106 ml), followed by stirring at room temperature for 7 hrs and 20 min. The reaction mixture was partitioned between ethyl acetate (50 ml) and a 1 N aqueous solution of sodium hydroxide (30 ml). The organic layer was washed with brine, and dried over anhydrous sodium sulfate. The solvent was evaporated to give a residue, which was then suspended in ethanol (0.5 ml)-diethyl ether (5 ml), filtered off, washed with diethyl ether and dried under aeration to provide the titled compound (52.7 mg, 75%) as colorless powder.

Provenance & Evidence