4,6-dimethyl-N-(octahydro-2H-benzimidazol-2-ylidene)pyrimidin-2-amine

N-(4-ethylphenyl)-N'-(6-methyl-4-oxo-1,4-dihydropyrimidin-2-yl)guanidine

N-(4-ethoxyphenyl)-N'-(6-methyl-4-oxo-1,4-dihydropyrimidin-2-yl)guanidine

1-(2-fluoro-4-methylphenyl)-1H-pyrrole-2,5-dione

2-[(3,4-dimethylphenyl)amino]-5,6-dimethylpyrimidin-4(3H)-one

5-benzyl-2-[(4-fluorophenyl)amino]-6-methylpyrimidin-4(3H)-one

2-hydroxy-3-phenyl-4H-pyrimido[1,2-a]pyrimidin-4-one

methyl (2-methyl-5-oxo-4,5,6,7-tetrahydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl)acetate

ethyl 7-[(E)-2-(dimethylamino)vinyl]-5-methyl[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate

6-amino-2-anilinopyrimidin-4(3H)-one

6-amino-2-(benzylamino)pyrimidin-4(3H)-one