| 1-(cyclopropylmethyl)-4-(diphenylmethyl)-piperazin dihydrochloride |
| 1-(cyclopropylmethyl)-4-(diphenylmethyl)piperazine dihydrochloride |
| 1-benzhydryl-4-cyclopropylmethyl-piperazine dihydrochloride |
| 1-(cyclopropylmethyl)-4-(diphenylmethyl)-piperazindihydrochloride |
