(2S,4S)-3-Acryloyl-6-oxo-2-phenylperhydropyrimidine-4-carboxylic acid

In the title compound, C14H14N2O4, the central six-membered ring adopts a twisted boat conformation with the phenyl substituent occupying an orthogonal position [dihedral angle = 86.88 (11)°]. In the crystal, molecules are linked by carboxylic acid–carbonyl O—H...O and amide–carbonyl N—H...O hydrogen bonds, forming a three-dimensional network