Sodium Carbonate → HCID 86723867, compound

Participants

Reaction Steps

5-Iodo-3-isopropyl-6-methyl-1-(3-trifluoromethylphenyl)pyrimidin-2,4(1H,3H)-dione (prepared in Reference Example 85) (600 mg) and 2-bromo-3-pyridine boronic acid pinacol ester (878 mg) were dissolved in 1,2-dimethoxyethane (30 ml). Thereto were added under nitrogen atmosphere water (6 ml), sodium carbonate (290 mg), 2-(dicyclohexylphosphino)biphenyl (57.6 mg) and tetrakis(triphenylphosphine)palladium (316 mg) and the resulting mixture was stirred with heating under reflux for four and a half hours. The reaction solution was concentrated under reduced pressure and to the residue was added water, and the resulting mixture was extracted with ethyl acetate (50 ml). The organic layer was washed with saturated saline (50 ml), dried over anhydrous magnesium sulfate and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent: hexane/ethyl acetate) to afford 5-(2-bromopyridin-3-yl)-3-isopropyl-6-methyl-1-(3-(trifluoromethyl)phenyl)pyrimidin-2,4(1H,3H)-dione (134 mg).

Provenance & Evidence