7-[3-(4-ETHYLPHENOXY)-2-HYDROXYPROPYL]-3-METHYL-8-[(2-PHENYLETHYL)AMINO]-3,7-DIHYDRO-1H-PURINE-2,6-DIONE

7-((4-NITRO-PHENYLAMINO)-PHENYL-METHYL)-QUINOLIN-8-OL

7-(2-(4-CHLORO-PHENYL)-2-OXO-ETHOXY)-4-PHENYL-CHROMEN-2-ONE

7-(2-ETHOXYETHYL)-3-ME-8-(4-PH-1-PIPERAZINYL)-3,7-DIHYDRO-1H-PURINE-2,6-DIONE

7-(2-HO-3-(4-NITRO-PHENOXY)-PR)-3-ME-8-PIPERIDIN-1-YL-3,7-2H-PURINE-2,6-DIONE

7-(2-Hydroxypropyl)theophylline

7-(2-OXO-2-PHENYL-ETHOXY)-CHROMEN-2-ONE

7-(2,4-DINITRO-PHENOXY)-2-METHYL-3-PHENOXY-CHROMEN-4-ONE

7-(3-(4-CL-PHENOXY)-2-HO-PR)-8-ISOPROPYLSULFANYL-3-ME-3,7-2H-PURINE-2,6-DIONE

7-(3-BROMOBENZYL)-8-[(2E)-2-(5-BROMO-2-OXO-1,2-DIHYDRO-3H-INDOL-3-YLIDENE)HYDRAZINO]-1,3-DIMETHYL-3,7-DIHYDRO-1H-PURINE-2,6-DIONE

7-(3,4-DICHLORO-BENZYLOXY)-8-METHYL-4-PHENYL-CHROMEN-2-ONE

7-(4-CHLORO-BENZYL)-8-HEXYLSULFANYL-3-METHYL-3,7-DIHYDRO-PURINE-2,6-DIONE

7-(4-CHLOROBENZYL)-8-[(DIBENZYLAMINO)METHYL]-1,3-DIMETHYL-3,7-DIHYDRO-1H-PURINE-2,6-DIONE

7-(4-ET-PH)-1,3-DIMETHYL-8-(4-ME-PH)-1H-IMIDAZO(2,1-F)PURINE-2,4(3H,8H)-DIONE

7-(4-HO-1-ME-2-OXO-QUINOLIN-3-YL)-5-ME-2H-12-OXA-5-AZA-BENZO[A]ANTHRACEN-6-ONE