8-(1-ACETYL-2-OXO-PROPYLSULFANYL)-1,3-DIMETHYL-3,7-DIHYDRO-PURINE-2,6-DIONE

8-(5-CHLORO-2-NITRO-PHENYLSULFANYL)-QUINOLINE

8-(benzyloxy)-2-methylimidazo[1,2-a]pyridine

8-(N'-(1-(4-BR-PH)-ETHYLIDENE)-HYDRAZINO)-3-ME-7-OCTYL-3,7-2H-PURINE-2,6-DIONE

8-(N'-(4-BR-BENZYLIDENE)-HYDRAZINO)-7-HEXYL-3-ME-3,7-DIHYDRO-PURINE-2,6-DIONE

8-ALLYLSULFANYL-3-METHYL-7-PROPYL-3,7-DIHYDRO-PURINE-2,6-DIONE

8-BR-2,4-DI-THIOPHEN-2-YL-1,9B-DIHYDRO-5-OXA-3,3A-DIAZA-CYCLOPENTA(A)NAPHTHALENE

8-BR-4-(4-BR-PH)-2-PHENYL-1,9B-DIHYDRO-5-OXA-3,3A-DIAZA-CYCLOPENTA(A)NAPHTHALENE

8-BR-7-(2-HO-3-(NAPHTHALEN-1-YLOXY)-PR)-3-METHYL-3,7-DIHYDRO-PURINE-2,6-DIONE

8-Bromo-2-chloroquinoline

8-Bromo-4-chloroquinoline

8-BROMO-7-ETHYL-1,3-DIMETHYL-3,7-DIHYDRO-PURINE-2,6-DIONE

8-BUTYLSULFANYL-7-ISOPROPYL-3-METHYL-3,7-DIHYDRO-PURINE-2,6-DIONE

8-CL-4,4-DIMETHYL-2-P-TOLYL-1,9B-2H-5-OXA-3,3A-DIAZA-CYCLOPENTA(A)NAPHTHALENE

8-DIMETHYLAMINO-7-HEXADECYL-3-METHYL-3,7-DIHYDRO-PURINE-2,6-DIONE