| 3-(3-chlorophenyl)-5-(2-nitrophenylmethylene)-4-imidazolidinedione |
| 3-(3-chlorophenyl)-5-(2-nitrophenylmethylene)-2,4-imidazolidinedione |
| 3-(m-chlorophenyl)-5-(o-nitrobenzylidene)-hydantoi |
| 3-(3-chlorophenyl)-5-(2-nitrophenylmethylene)-4-imidazolidinedione |
