methyl (3-oxopyrazolidin-4-yl)acetate

2-[(4,8-dimethylquinazolin-2-yl)amino]-6-methylpyrimidin-4(3H)-one

ethyl 2-(4-isopropylbenzyl)-3-oxobutanoate

ethyl 2-(3-chlorobenzyl)-3-oxobutanoate

N-(4,6,7-trimethylquinazolin-2-yl)guanidine

N-(4,7-dimethylquinazolin-2-yl)guanidine

N-(8-ethoxy-4-methylquinazolin-2-yl)guanidine

4-(4-chlorophenyl)-2-hydrazinopyrimidine

6-amino-1-(2-phenylethyl)pyrimidine-2,4(1H,3H)-dione

6-amino-1-(3-morpholin-4-ylpropyl)pyrimidine-2,4(1H,3H)-dione

N'-(2-cyano-5,5-dimethyl-3-oxocyclohex-1-en-1-yl)-N,N-dimethylimidoformamide