4-Piperidino-Piperidine4-Piperidinopiperidine1,4'-Bipiperidine4-(Piperidin-1-yl)piperidine1,4′-二哌啶1,4′-Bipiperidine4-Piperidinopiperidine4-哌啶基哌啶4-(1-Piperidinyl)piperidine1-(4-Piperidinyl)piperidineN-(4-哌啶基)哌啶1,4'-Bipiperidine1-(4-Piperidino)piperidine1-(piperidin-4-yl)piperidine1,4'-bipiperidine1,4'-bipiperidyl4-piperidin-1-ylpiperidine4-PIPERIDINO-PIPERIDINE