3,8-dimethylquinoline-2-carboxylic acid

4-[(4-amino-3-methylphenyl)-(4-nitrophenyl)methyl]-2-methylaniline

4-[(4-amino-3-methylphenyl)disulfanyl]-2-methylaniline

N-[4-[(4-acetamido-3-methylphenyl)disulfanyl]-2-methylphenyl]acetamide

4-[bis(4-amino-3-methylphenyl)methyl]-2-methylaniline