3-butyl-2-hydroxy-4H-pyrido[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

7-hydroxypyrido[3,4-e][1,2,4]triazolo[1,5-a]pyrimidin-6(7H)-one

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

6-amino-2-(3,4-dihydroisoquinolin-2(1H)-yl)pyrimidin-4(3H)-one

6-amino-2-(3-methylpiperidin-1-yl)pyrimidin-4(3H)-one

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

4-(2-chlorophenyl)pyrimidine-2-thiol

4-{[(dimethylamino)methyl]amino}-7-methylpyrazolo[5,1-c][1,2,4]triazine-3-carbonitrile

(2E)-3-(dimethylamino)-1-(4-methylphenyl)prop-2-en-1-one

N'-(3-cyanopyrazolo[5,1-c][1,2,4]triazin-4-yl)-N,N-dimethylimidoformamide

4-[(E)-2-(dimethylamino)vinyl]-8-phenylpyrazolo[5,1-c][1,2,4]triazine-3-carbonitrile

N-[amino(imino)methyl]-5-phenyl-4,5-dihydro-1H-pyrazole-1-carboximidamide

7-amino-2-methylpyrido[3,4-e][1,2,4]triazolo[1,5-a]pyrimidin-6(7H)-one

7-amino-5-methylpyrido[3,4-e][1,2,4]triazolo[1,5-a]pyrimidin-6(7H)-one