Tert-butyl 2-amino-3-(1,3-dioxolan-2-yl)propanoate

N-cyclopentyl-2-(5-(4-(cyclopropanecarbonyl)piperazin-1-yl)-1-methyl-2,4-dioxo-1,2-dihydropyrido[2,3-d]pyrimidin-3(4H)-yl)acetamide

N-cyclohexyl-2-(5-(4-(cyclopropanecarbonyl)piperazin-1-yl)-1-methyl-2,4-dioxo-1,2-dihydropyrido[2,3-d]pyrimidin-3(4H)-yl)acetamide

2-(5-(4-(cyclopropanecarbonyl)piperazin-1-yl)-1-methyl-2,4-dioxo-1,2-dihydropyrido[2,3-d]pyrimidin-3(4H)-yl)-N-(5-methylisoxazol-3-yl)acetamide

5-(4-(cyclopropanecarbonyl)piperazin-1-yl)-3-(2-fluorobenzyl)-1-methylpyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione

5-(4-(cyclopropanecarbonyl)piperazin-1-yl)-1-methyl-3-(naphthalen-1-ylmethyl)pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione

N-(tert-butyl)-2-(5-(4-(cyclopropanecarbonyl)piperazin-1-yl)-1-methyl-2,4-dioxo-1,2-dihydropyrido[2,3-d]pyrimidin-3(4H)-yl)acetamide

2-(5-(4-(cyclopropanecarbonyl)piperazin-1-yl)-1-methyl-2,4-dioxo-1,2-dihydropyrido[2,3-d]pyrimidin-3(4H)-yl)-N-(2-methoxyethyl)acetamide

2-(5-(4-(cyclopropanecarbonyl)piperazin-1-yl)-1-methyl-2,4-dioxo-1,2-dihydropyrido[2,3-d]pyrimidin-3(4H)-yl)-N-methyl-N-phenylacetamide

2-(5-(4-(cyclopropanecarbonyl)piperazin-1-yl)-1-methyl-2,4-dioxo-1,2-dihydropyrido[2,3-d]pyrimidin-3(4H)-yl)-N,N-diisopropylacetamide

2-(5-(4-(furan-2-carbonyl)piperazin-1-yl)-1,6-dimethyl-2,4-dioxo-1,2-dihydropyrido[2,3-d]pyrimidin-3(4H)-yl)-N-propylacetamide