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

Abstract

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.