8-[2-(4-benzhydrylpiperazin-1-yl)ethyl]-1-methyl-3-(2-methylpropyl)-7H-purine-2,6-dione

8-[2-[4-(Diphenylmethyl)-1-piperazinyl]ethyl]-3,7-dihydro-1-methyl-3-(2-methylpropyl)-1H-purine-2,6-dione