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Acta Cryst. (2012). E68, o3271
[ doi:10.1107/S1600536812044662 ]
Abstract: In the title pyrimidine derivative, C12H16N2OS, the tetrahydropyrimidine ring adopts an envelope conformation with the C atom of the methylene -CH2- group as the flap. In the crystal, N-H
O and N-H
S hydrogen bonds connect molecules into undulating sheets perpendicular to the a axis.
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