| 5-(m-chlorobenzylidene)-3-phenyl-2-thio-hydantoi |
| 3-phenyl-5-(3'-chlorobenzylidene)-2-thiohydantoin |
| 5-((3-chlorophenyl)methylene)-3-phenyl-2-thioxo-4-imidazolidinon |
| 5-((3-chlorophenyl)methylene)-3-phenyl-2-thioxo-4-imidazolidinone |
| 5-(m-chlorobenzylidene)-3-phenyl-2-thiohydantoin |
