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

4-chloro-1,3-dimethyl-2,6-dioxopyrimidine-5-carbaldehyde

1-benzyl-5,7-dimethyl-4,6-dioxo-4,5,6,7-tetrahydropyrazolo[3,4-d]pyrimidine

6-hydrazino-1,3-dimethyl-1H-pyrimidine-2,4-dione

甲亚胺酸