N-(4-oxo-4,5-dihydro-1,3-thiazol-2-yl)guanidine

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

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

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

5-methyl-4-(2-phenylethyl)-2,4-dihydro-3H-pyrazol-3-one

3-butyl-2-hydroxy-4H-pyrido[1,2-a]pyrimidin-4-one

3-methyl-3,4-dihydro-1H-1,4-benzodiazepine-2,5-dione

6-amino-2-pyrrolidin-1-ylpyrimidin-4(3H)-one

6-amino-2-[(4-methylphenyl)amino]pyrimidin-4(3H)-one

6-amino-2-[(2-phenylethyl)amino]pyrimidin-4(3H)-one

2-pyridin-4-yl[1,2,4]triazolo[1,5-a][1,3,5]triazin-7-amine