| 3-(2-(dimethylamino)ethyl)-5-phenyl-5-(3-pyridinyl)-4-imidazolidinedione |
| 3-(2-(dimethylamino)ethyl)-5-phenyl-5-(3-pyridinyl)-2,4-imidazolidinedio ne |
| 3-beta-dimethylaminoethyl-5-phenyl-5-beta-pyridylhydantoin |
| 3-(2-(dimethylamino)ethyl)-5-phenyl-5-(2-pyridyl)-hydantoi |
| 3-(2-(dimethylamino)ethyl)-5-phenyl-5-(3-pyridinyl)-4-imidazolidinedione |
