1-[(E)-(3-methyl-4-phenylpyridin-2-yl)methylideneamino]-3-phenylthiourea

1-(1,3-dioxoisoindol-2-yl)-3-phenylthiourea

1-phenyl-3-[[phenyl(pyridin-2-yl)methylidene]amino]thiourea

1-phenyl-3-[(E)-pyridin-4-ylmethylideneamino]thiourea

1-(dipyridin-2-ylmethylideneamino)-3-phenylthiourea