4-phenyl-1-(3-trimethylsilanyl-allyl)-[1,2,4]triazolidine-3,5-dione

1-but-3-en-2-yl-4-phenyl-1,2,4-triazolidine-3,5-dione

6-(3,5-dioxo-4-phenyl-1,2,4-triazolidin-1-yl)-6-methyl-2-phenyl-5H-[1,2,4]triazolo[1,2-a]cinnoline-1,3-dione

N-phenyl-8,9-diazatricyclo<5.2.2.02,4>undeca-5,10-diene-8,9-dicarboximide

3-oxo-N-phenyl-7,8-diazatricyclo<4.2.2.02,5>dec-9-ene-7,8-dicarboximide