2-(4-piperonyl-1-piperazinyl)-9h-purine-9-ethano dihydrochloride |
2-(4-piperonyl-1-piperazinyl)-9h-purine-9-ethanol dihydrochloride |
9-(2-hydroxyethyl)-2-(4-piperonyl-1-piperazinyl)-9h-purine dihydrochloride |
2-(4-piperonyl-1-piperazinyl)-9h-purine-9-ethanodihydrochloride |