7-[2-[4-[(4-Chlorophenyl)methyl]-1-piperazinyl]ethyl]theophyline

7-[2-[4-[(4-Chlorophenyl)methyl]-1-piperazinyl]ethyl]theophylline

7-[2-[4-[(4-Chlorophenyl)methyl]-1-piperazinyl]ethyl]-3,7-dihydro-1,3-dimethyl-1H-purine-2,6-dione