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In the title compound, C 14 H 15 F 3 N 2 O 5 , prepared by reaction of 2-hy­droxy­benzaldehyde, ethyl 4,4,4-trifluoro-3-oxobutano­ate and urea, the tetra­pyrimidine ring adopts a half-chair conformation. The crystal structure is stabilized by five inter­molecular hydrogen bonds, three O—H⋯O and two N—H⋯O, giving cyclic dimers (through three hydrogen bonds) which are further extended into a two-dimensional network.

rac-Ethyl 4-hydroxy-6-(2-hydroxyphenyl)-2-oxo-4-(trifluoromethyl)perhydropyrimidine-5-carboxylate