Water → HCID 68281611, compound

Participants

Reaction Steps

125 mg of 4-difluoromethoxy-2-methyl-2,3-dihydro-1H-indole [reference example 11d] and 193 mg of N-[3-(dimethylamino)propyl]-N′-ethylcarbodiimide hydrochloride are added to a solution of 242 mg of sodium [1-methyl-4-(morpholin-4-yl)-6-oxo-1,6-dihydropyrimidin-2-yl]acetate (obtained in step 2d of example 4d) in 6 ml of N,N-dimethylformamide and 6 ml of pyridine. The reaction mixture is stirred at ambient temperature for 16 hours, and then 25 ml of water are added and the mixture is extracted with ethyl acetate. The organic phase is washed successively with a 0.1N hydrochloric acid solution, water and a saturated sodium chloride solution, dried over magnesium sulfate, filtered, and concentrated under reduced pressure. The residue is purified by silica column chromatography, elution being carried out with a mixture of dichloromethane and methanol (90/10: v/v), so as to give 170 mg of 2-{2-[4-(difluoromethoxy)-2-methyl-2,3-dihydro-1H-indol-1-yl]-2-oxoethyl}-3-methyl-6-(morpholin-4-yl)pyrimidin-4(3H)-one.

Provenance & Evidence