4-(2-acetylhydrazino)-4-oxobutanoic acid

ethyl [(3-methylphenyl)amino]acetate

2-[(4-methylphenyl)amino]butanohydrazide

2-[(4-methoxyphenyl)amino]butanohydrazide

2-(1-naphthylamino)butanohydrazide

2-[(5-{[(3-methylphenyl)amino]methyl}-4-phenyl-4H-1,2,4-triazol-3-yl)thio]acetohydrazide

ethyl 2-(3-methylpiperidin-1-yl)propanoate

3-[(1,3-benzoxazol-2-ylthio)methyl]benzoic acid

3-(ethylamino)propanohydrazide

methyl 2-methyl-3-(1H-pyrazol-1-yl)propanoate

3-{5-[(isobutylamino)methyl]-1,2,4-oxadiazol-3-yl}benzamide