4-Hydroxy-2-methyl-N-(5-methyl-1,3-thiazol-2-yl)-2H-1,2-benzothiazine-3-carboxamide 1,1-Dioxide

The thiazine ring in the title compound, C₁₄H₁₃N₃O₄S₂, adopts a half-chair conformation. The methyl group at N3 is axial to the thiazine ring due to the tetrahedral geometry of the N3 atom. The molecules are stabilized by intramolecular O-H...O and intermolecular N-H...O hydrogen bonds.

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