Mercuribis-o-nitrophenol

6-methyl-3-(phenylhydrazinylidene)pyran-2,4-dione

4-hydroxy-6-methyl-1-(2-phenylethyl)pyridin-2-one

6-methyl-1-(2-phenylethyl)-4-(2-phenylethylamino)pyridin-2-one

6-methyl-3-(phenyl-λ³-iodanylidene)pyran-2,4-dione