| 4-(2-(4-(4-fluorophenyl)-1-piperazinyl)ethyl)-piperazinecarboxylic aci phen |
| ((p-fluorophenyl)-4 piperazinyl-1)-1 ((phenoxycarbonyl)-4 piperazinyl-1)-2 et |
| phenyl 4-(2-(4-(4-fluorophenyl)-1-piperazinyl)ethyl)piperazinecarboxylate |
| 4-(2-(4-(4-fluorophenyl)-1-piperazinyl)ethyl)-piperazinecarboxylic aci phenyl ester |
