1,3-dipropyl-8-{1-[2-(3-trifluoromethyl-phenyl)-cyclopropylmethyl]-1H-pyrazol-4-yl}-3,7-dihydro-purine-2,6-dione
1,3-dipropyl-8-{1-[3-(3-trifluoromethoxyphenyl)-prop-2-ynyl]-1H-pyrazol-4-yl}-3,7-dihydropurine-2,6-dione
4-{3-[4-(2,6-dioxo-1,3-dipropyl-2,3,6,7-tetrahydro-1H-purin-8-yl)pyrazol-1-yl]prop-1-ynyl}benzoic acid ethyl ester
3-(3-{4-[2,6-dioxo-1,3-dipropyl-7-(2-trimethylsilanyl-ethoxymethyl)-2,3,6,7-tetrahydro-1H-purin-8-yl]-pyrazol-1-yl}-prop-1-ynyl)-benzoic acid ethyl ester
3-{3-[4-(2,6-dioxo-1,3-dipropyl-2,3,6,7-tetrahydro-1H-purin-8-yl)pyrazol-1-yl]prop-1-ynyl}benzoic acid ethyl ester