Crystal structure of ethyl 6-(2-fluorophenyl)-4-hydroxy-2-sulfanylidene-4- trifluoromethy1-1,3-diazinane-5-carboxy late

In the title compound, C4H14F4N2O3S, the central dihydropyrimidine ring adopts a sofa conformation with the C atom bearing the 2-fluorobenzene ring displaced by 0.596 (3) angstrom from the other five atoms. The 2-fluorobenzene ring is positioned axially and bisects the pyrimidine ring with a dihedral angle of 70.92 (8)degrees. The molecular conformation is stabilized by an intramolecular O-H center dot center dot center dot O hydrogen bond, generating an S(6) ring. The crystal structure features C-H center dot center dot center dot F, N-H center dot center dot center dot S and N-H center dot center dot center dot O hydrogen bonds, which link the molecules into a three-dimensional network.