Pentoxifylline 1-N-HEXYLTHEOBROMINE 1-(3-CHLOROPROPYL)THEOBROMINE Denbufylline Torbafylline 1,3-Dipropyl-7-methylxanthine PROPENTOFYLLINE protheobromine HYDROXY PENTOXIFYLLINE 1-(2,3-dihydroxypropyl)-3,7-dihydro-3,7-dimethyl-1H-purine-2,6-dione 1-(5-hydroxyhexyl)-3,7-dimethyl-purine-2,6-dione 3,7-DIMETHYL-1-(2-OXIRANYLMETHYL)-2,3,6,7-TETRAHYDRO-1H-2,6-PURINEDIONE 3-ethyl-1-(6-hydroxy-6-methylheptyl)-7-propylxanthine 1-(3-(4-(3,4-Dichlorophenyl)-1-piperazinyl)propyl)theobromine 1-(4-(4-(3,4-Dichlorophenyl)-piperazinyl)butyl)theobromine dihydrochlo ride 1-propyl-3-methyl-7-(5-hydroxyhexyl)xanthine 1-(4-(4-(p-Fluorophenyl)-1-piperazinyl)butyl)theobromine dihydrochlori de 1-(3-(4-(o-Chlorophenyl)-1-piperazinyl)propyl)theobromine dihydrochlor ide