2-chloro-4H-1,4-benzothiazin-3-one

2-methylidene-4H-1,4-benzothiazin-3-one

2-propan-2-ylidene-4H-1,4-benzothiazin-3-one

4-benzyl-1,4-benzothiazin-3-one

2-phenyl-4H-1,4-benzothiazin-3-one