(4-Cyano-phenyl)-carbamic acid 4-(2,6-dioxo-1,3-dipropyl-2,3,6,7-tetrahydro-1H-purin-8-yl)-phenyl ester

N-[4-(3,5-dimethylphenyl)-5-pyridin-4-yl-1,3-thiazol-2-yl]pyridine-3-carboxamide

1-Allyl-3-methyl-8-phenyl-3,7-dihydro-purine-2,6-dione

1,3-dipropyl-8-cyclopentylxanthine

1-Allyl-7-(2-chloro-ethyl)-3-methyl-8-phenyl-3,7-dihydro-purine-2,6-dione

1-Propyl-3,7-dihydro-purine-2,6-dione

3-Methyl-1-prop-2-ynyl-3,7-dihydro-purine-2,6-dione

7-(2-Chloro-ethyl)-8-phenyl-1,3-dipropyl-3,7-dihydro-purine-2,6-dione

7-(2-Chloro-ethyl)-1,3-dimethyl-3,7-dihydro-purine-2,6-dione

3-Methyl-1-phenethyl-3,7-dihydro-purine-2,6-dione

1-Benzyl-3-methyl-3,7-dihydro-purine-2,6-dione

7-(3-Chloro-propyl)-1,3-dimethyl-3,7-dihydro-purine-2,6-dione

1,3-dimethyl-2,3,6,7-tetrahydro-1H-purine-2,6-dione

3-Methyl-1-(3-phenyl-propyl)-3,7-dihydro-purine-2,6-dione

7-(4-Chloro-butyl)-1,3-dimethyl-3,7-dihydro-purine-2,6-dione