Any organic heterobicyclic compound containing ortho-fused pyrimidine and triazine rings.
| Member | Definition | Role |
|---|
| 1,3,6-trimethylpyrimido[5,4-e][1,2,4]triazine-5,7-dione | | 1,3,6-trimethylpyrimido[5,4-e][1,2,4]triazine-5,7-dione |
| 1,6-dimethyl-3-(2-pyridinyl)pyrimido[5,4-e][1,2,4]triazine-5,7-dione | | 1,6-dimethyl-3-(2-pyridinyl)pyrimido[5,4-e][1,2,4]triazine-5,7-dione |
| 1,6-dimethyl-3-propylpyrimido[5,4-e][1,2,4]triazine-5,7-dione | | 1,6-dimethyl-3-propylpyrimido[5,4-e][1,2,4]triazine-5,7-dione |
| 5,7-dimethylpyrimido[4,5-e][1,2,4]triazine-6,8-dione | | 5,7-dimethylpyrimido[4,5-e][1,2,4]triazine-6,8-dione |
| reumycin | A pyrimidotriazine that is 6-methyl-5,6,7,8-tetrahydropyrimido[5,4-e][1,2,4]triazine with oxo groups at positions 5 and 6. | reumycin |
| toxoflavin | A pyrimidotriazine that is 1,6-dimethyl-1,5,6,7-tetrahydropyrimido[5,4-e][1,2,4]triazine with oxo groups at positions 5 and 7. | toxoflavin |