N-[(E)-[(E)-3-methyl-5-(4-methylphenyl)sulfonylpent-3-en-2-ylidene]amino]pyridine-4-carboxamide

3-(anilinomethyl)-5-pyridin-4-yl-1,3,4-oxadiazole-2-thione

N-[(E)-(4-fluorophenyl)methylideneamino]pyridine-4-carboxamide

4-[4-(4-methylphenyl)-1,2,4-triazol-3-yl]pyridine

(3-methyl-5-phenyl-4-phenyldiazenylpyrazol-1-yl)-pyridin-4-ylmethanone