N-[1-(6-methyl-3-pyridinyl)-4-piperidinyl]carbamic acid 1,1-dimethylethyl ester

2-((3-(3,4-dimethoxybenzyl)-4-oxo-4H-[1,3,4]thiadiazolo[2,3-c][1,2,4]triazin-7-yl)thio)-N-(p-tolyl)acetamide

8-[(4-Methoxyphenyl)methyl]-1,6,7-trimethyl-3-(2-piperidylethyl)-1,3,5-trihydr o-4-imidazolino[1,2-h]purine-2,4-dione

8-(3-chloro-4-methoxyphenyl)-1,7-dimethyl-3-(2-morpholinoethyl)-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione

methyl 2-(8-(2,5-dimethoxyphenyl)-1,6,7-trimethyl-2,4-dioxo-1H-imidazo[2,1-f]purin-3(2H,4H,8H)-yl)propanoate

3-(3-hydroxypropyl)-1-methyl-7-phenyl-8-(p-tolyl)-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione

3-(3-hydroxypropyl)-8-(4-methoxyphenyl)-1-methyl-7-phenyl-1H,2H,3H,4H,8H-imidazo[1,2-g]purine-2,4-dione

8-(4-bromophenyl)-3-(3-hydroxypropyl)-1-methyl-7-phenyl-1H,2H,3H,4H,8H-imidazo[1,2-g]purine-2,4-dione

3-(2-Methoxyethyl)-8-(2-methoxy-5-methylphenyl)-1-methyl-7-phenyl-1,3,5-trihyd ro-4-imidazolino[1,2-h]purine-2,4-dione

8-(2,5-dimethoxyphenyl)-3-(3-hydroxypropyl)-1-methyl-7-phenyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione

3-methyl-7-(2-oxo-2-phenylethyl)-8-(propylamino)-1H-purine-2,6(3H,7H)-dione