Received 17 September 2012
aChemistry Department, JJT University, Rajasthan, India,bSchool of Chemistry & Physics, University of KwaZulu-Natal, Durban 4000, South Africa,cDepartment of Chemistry, Government Science College, Gandhinagar, Gujarat, India, and dSchool of Pharmacology, University of KwaZulu Natal, Westville Campus, Private Bag X54001, South Africa
Correspondence e-mail: firstname.lastname@example.org
There are two molecules, A and B, in the asymmetric unit of the title compound, C14H16N2O4S, which is the first example reported in this family of compounds in which the Nsp3 atom of the thiadiazine ring is methylated. The thiadiazine rings adopt shallow envelope conformations, with the S atoms displaced by 0.319 (12) and 0.182 (12) Å from the mean planes of the other ring atoms in molecules A and B, respectively. The dihedral angles between the thiadiazine mean planes (excluding S) and the attached benzene rings are 86.8 (3) and 86.7 (3)° for molecules A and B, respectively.
Data collection: COLLECT (Nonius, 2000); cell refinement: DENZO-SMN (Otwinowski & Minor, 1997); data reduction: DENZO-SMN; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: OLEX2 (Dolomanov et al., 2009); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HB6962 ).
The authors wish to thank Dr Hong Su from the University of Cape Town for assistance with the data collection and refinement.
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