4-hydroxy-2-methyl-1,1-dioxo-N-phenyl-1λ⁶,2-benzothiazine-3-carboxamide

N-(2-Chlorophenyl)-4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide

N-(4-Chlorophenyl)-4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carb oxamide 1,1-dioxide