N'-[(E)-(4-butylphenyl)methylidene]-2-{2-[(methylamino)methyl]-1H-benzimidazol-1-yl}acetohydrazide
N'-[(E)-(4-propylphenyl)methylidene]-2-{2-[(methylamino)methyl]-1H-benzimidazol-1-yl}acetohydrazide
N'-[(E)-(4-ethylphenyl)methylidene]-2-{2-[(methylamino)methyl]-1H-benzimidazol-1-yl}acetohydrazide
2-{2-[(methylamino)methyl]-1H-benzimidazol-1-yl}-N'-[(E)-(4-methylphenyl)methylidene]acetohydrazide
2-{2-[(methylamino)methyl]-1H-benzimidazol-1-yl}-N'-[(E)-phenylmethylidene]acetohydrazide