8-ethylsulfanyl-1,3,7-trimethylpurine-2,6-dione

1,3,7-trimethylpteridine-2,4(1h,3h)-dione

1,3,7-trimethyl-8-phenylpurine-2,6-dione

(1,3,7-trimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)tris(trimethyl-l5-phosphaneyl)cobalt(V) bromide

(E)-8-Benzyliden-3,7,8,9-tetrahydro-1,3,7-trimethyl-9-phenyl-1H-purin-2,6-dion