diethyl 2-(diphenylmethylene)hydrazine-1,1'-dicarboxylate

ethyl N-(benzhydrylideneamino)carbamate

diethyl 4,5-dimethyl-3,6-dihydropyridazine-1,2-dicarboxylate

1-(azidomethyl)-2-(trifluoromethyl)benzene

5-methyl-3-[2-(2-methylphenyl)ethyl]imidazolidine-2,4-dione