6-amino-1,3-dimethyl-5-(3-phenylpropanoyl)pyrimidine-2,4-dione

4-amino-1,3-dimethyl-2,6-dioxo-N-phenylpyrimidine-5-carboxamide

6-azido-1,3-dimethylpyrimidine-2,4-dione

(5Z)-5-[(4-chlorophenyl)hydrazinylidene]-6-imino-1,3-dimethyl-1,3-diazinane-2,4-dione

1,3,6-trimethyl-7,8-dihydro-5H-pyrimido[4,5-d]pyrimidine-2,4-dione