3-(Phenylthio)-1-(3-(5-(thiophen-3-yl)-1,2,4-oxadiazol-3-yl)pyrrolidin-1-yl)propan-1-one

2-((6,8-dimethyl-5,7-dioxo-2-(thiophen-2-yl)-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(4-(trifluoromethyl)phenyl)acetamide

2-((6,8-dimethyl-5,7-dioxo-2-(thiophen-2-yl)-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(4-nitrophenyl)acetamide

N-(4-acetylphenyl)-2-((6,8-dimethyl-5,7-dioxo-2-(thiophen-2-yl)-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)acetamide

2-((6,8-dimethyl-5,7-dioxo-2-(thiophen-2-yl)-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(4-fluorobenzyl)acetamide

2-((6,8-dimethyl-5,7-dioxo-2-(thiophen-2-yl)-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(thiazol-2-yl)acetamide

2-((6,8-dimethyl-5,7-dioxo-2-(thiophen-2-yl)-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(4-methylthiazol-2-yl)acetamide

2-((6,8-dimethyl-5,7-dioxo-2-(thiophen-2-yl)-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(5-methylisoxazol-3-yl)acetamide

5-((4-bromobenzyl)thio)-1,3-dimethyl-7-(thiophen-2-yl)pyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione

1,3-dimethyl-5-((4-nitrobenzyl)thio)-7-(thiophen-2-yl)pyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione

1,3-dimethyl-7-(thiophen-2-yl)-5-((4-(trifluoromethyl)benzyl)thio)pyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione