| 3-ethyl-3-phenyl-1-(1-piperidinylmethyl)-6-piperidinedione |
| 1-piperidinomethylglutethimide |
| 3-ethyl-3-phenyl-1-(1-piperidinylmethyl)-2,6-piperidinedione |
| 2-ethyl-2-phenyl-n-(piperidinomethyl)-glutarimid |
| 3-ethyl-3-phenyl-1-(1-piperidinylmethyl)-6-piperidinedione |
