Acta Cryst. (2008). E64, o352 [ doi:10.1107/S160053680706730X ]
Abstract: In the title molecule, C18H21ClN2O3S, the pyrimidine ring exhibits a half-chair conformation. The ethyl group is disordered between two positions in a ratio 0.74:0.26. In the crystal structure, the molecules are linked into chains along the a axis by N-HO hydrogen bonds.
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