1,6-dimethyl-3-phenylpyrimido[5,4-e][1,2,4]triazine-5,7-dione

6,8-dimethyl-3-phenylpyrimido[5,4-e][1,2,4]triazine-5,7-dione

6-methyl-3-phenyl-8H-pyrimido[5,4-e][1,2,4]triazine-5,7-dione

3-Methyl-6-phenyl-1-(2-propyl)-7-azalumazine

3-Methyl-6-phenyl-1-propyl-7-azalumazine