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The title compound, C 16 H 20 F 3 N 3 O 4 , was prepared by reaction of 4-(dimethyl­amino)benzaldehyde, ethyl 4,4,4-trifluoro-3-oxo­butanoate and urea. In the title mol­ecule, the pyrimidine ring adopts a half-chair conformation and there is an intra­molecular hydrogen bond (O—H⋯O). The crystal structure is stabilized by two types inter­molecular hydrogen bonds (N—H⋯O and N—H⋯N).

Ethyl 6-[4-(dimethylamino)phenyl]-4-hydroxy-2-oxo-4-(trifluoromethyl)hexahydropyrimidine-5-carboxylate