Sodium hydride → HCID 68859476, compound

Participants

Reaction Steps

Into a solution of 5.0 g (16.3 mmol) of 5-[(3,5-dimethoxy-phenylamino)-methyl]-2-methylsulfanyl-pyrimidin-4-ylamine in 55 mL of dimethylformamide cooled to 5° C., was added 1.63 g (40.8 mmol) of sodium hydride as a 60% mineral oil suspension. The ice bath was removed, and the reaction was stirred for 1 hour. To the reaction was then added 7.94 g (48.9 mmol) of 1,1′-carbonyldiimidazole. After stirring the mixture a further 2.5 hours, the mixture was concentrated in vacuo. The residue was partitioned between dichloromethane and a saturated solution of ammonium chloride. The dichloromethane layer was washed twice with each of saturated ammonium chloride, water, and a saturated solution of sodium chloride. The dichloromethane solution was dried over magnesium sulfate and concentrated in vacuo. The residue was chromatographed on silica gel, eluting with chloroform/methanol (10:0.25 v/v), to give 3.24 g (60%) of the title compound.

Provenance & Evidence