Water → HCID 86723876, compound

Participants

Reaction Steps

A solution of 3-[5-[1-(4-cyanophenyl)-1H-pyrazol-5-yl]-4-methyl-2,6-dioxo-3-(3-trifluoromethylphenyl)-2,3-dihydropyrimidin-1(6H)-yl]propanoic acid ethyl ester (prepared in Example 4) (351.0 mg) in methanol (1.0 ml) was cooled under ice-cooling and thereto was added 2N aqueous sodium hydroxide solution (340 μl) and the resulting mixture was stirred at room temperature for twelve hours. The reaction mixture was diluted with diethylether (30 ml) and thereto was added water (30 ml). The organic layer and the aqueous layer were separated and the aqueous layer was then acidified with sodium hydrogen sulfate (500 mg) and extracted with ethyl acetate (50 ml×3). The organic layer was dried over anhydrous sodium sulfate and then concentrated under reduced pressure. The obtained amorphous was washed with hexane (30 ml) to afford 3-[5-[1-(4-cyanophenyl)-1H-pyrazol-5-yl]-4-methyl-2,6-dioxo-3-(3-trifluoromethylphenyl)-2,3-dihydropyrimidin-1(6H)-yl]propanoic acid (239.5 mg).

Provenance & Evidence