2-(cyclopentyloxy)-N-ethyl-N-(o-tolyl)isonicotinamide

8-(2-aminophenyl)-3-ethyl-1,7-dimethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione

3-(4-fluorobenzyl)-8-(2-(2-hydroxyethoxy)ethyl)-1,7-dimethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione

2-(8-(2,4-dimethylphenyl)-1-methyl-2,4-dioxo-7-phenyl-1H-imidazo[2,1-f]purin-3(2H,4H,8H)-yl)acetamide

3-allyl-8-(sec-butyl)-1,7-dimethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione

methyl 2-(1,7-dimethyl-2,4-dioxo-8-((tetrahydrofuran-2-yl)methyl)-1H-imidazo[2,1-f]purin-3(2H,4H,8H)-yl)acetate

3-cinnamyl-8-(3-hydroxypropyl)-1,7-dimethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione

8-(4-benzylpiperazin-1-yl)-7-(3-chlorobenzyl)-3-methyl-1H-purine-2,6(3H,7H)-dione

7-(3,4-dichlorobenzyl)-8-(4-isobutylpiperazin-1-yl)-3-methyl-1H-purine-2,6(3H,7H)-dione

8-{4-[(2-Fluorophenyl)methyl]piperazinyl}-3-methyl-7-[(3-methylphenyl)methyl]-1,3,7-trihydropurine-2,6-dione

ethyl 4-((7-(3,3-dimethyl-2-oxobutyl)-1,3-dimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)methyl)piperazine-1-carboxylate