methyl 2-(2-aminophenyl)sulfanyl-2-(3-benzyl-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-yl)acetate

6-nitro-2-(4-nitrophenyl)-1,3-benzothiazole

2-(3-methyl-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-yl)-4H-1,4-benzothiazin-3-one

methyl (2Z)-2-(3-oxo-4H-1,4-benzothiazin-2-ylidene)acetate

N-(4-methoxyphenyl)-1,3-benzothiazol-2-amine