1-(2,3-dimethylbut-3-en-2-yl)-4-phenyl-1,2,4-triazolidine-3,5-dione

1-(2-Methoxy-1,1,2-trimethyl-propyl)-4-phenyl-[1,2,4]triazolidine-3,5-dione

4-phenyl-1-prop-2-enyl-1,2,4-triazolidine-3,5-dione

2-Phenyl-6-trimethylsilanyl-dihydro-pyrazolo[1,2-a][1,2,4]triazole-1,3-dione