N-[4-(4-nitrophenyl)sulfanylphenyl]acetamide

N-[4-(4-nitrophenyl)sulfinylphenyl]acetamide

1-(4-iodophenyl)sulfanyl-4-nitrobenzene

N-[4-(4-acetamidophenyl)sulfonylphenyl]acetamide

4-Aethoxycarbonylamino-4'-nitro-diphenylsulfon