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    首页 分子通 按分子结构分类 有机化合物 有机杂环化合物 吡啶并嘧啶类

    吡啶并嘧啶类

    中文名称 英文名称 CAS号 化学式 结构式图片
    —— (5S)-2-[(2S,6S)-2,6-dimethylpiperidin-1-yl]-N-(3-fluorophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C21H24FN5O3
    (5S)-2-[(2S,6S)-2,6-dimethylpiperidin-1-yl]-N-(3-fluorophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (9S)-3-(2-morpholin-4-ylethylamino)-9-thiophen-2-yl-2,8,9,10-tetrahydropyrimido[4,5-c]isoquinoline-1,7-dione —— C21H23N5O3S
    (9S)-3-(2-morpholin-4-ylethylamino)-9-thiophen-2-yl-2,8,9,10-tetrahydropyrimido[4,5-c]isoquinoline-1,7-dione
    —— (5S)-2-[(2R,6R)-2,6-dimethylpiperidin-1-yl]-4,7-dioxo-N-[3-(trifluoromethoxy)phenyl]-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H24F3N5O4
    (5S)-2-[(2R,6R)-2,6-dimethylpiperidin-1-yl]-4,7-dioxo-N-[3-(trifluoromethoxy)phenyl]-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-[(2R,6S)-2,6-dimethylpiperidin-1-yl]-N-(3-nitrophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C21H24N6O5
    (5S)-2-[(2R,6S)-2,6-dimethylpiperidin-1-yl]-N-(3-nitrophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-morpholin-4-yl-4,7-dioxo-N-[2-(trifluoromethyl)phenyl]-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C19H18F3N5O4
    (5S)-2-morpholin-4-yl-4,7-dioxo-N-[2-(trifluoromethyl)phenyl]-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— ethyl 1-[(5R)-5-[(2-ethylphenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C24H29N5O5
    ethyl 1-[(5R)-5-[(2-ethylphenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5S)-2-[(2S,6R)-2,6-dimethylpiperidin-1-yl]-N-(3-methylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H27N5O3
    (5S)-2-[(2S,6R)-2,6-dimethylpiperidin-1-yl]-N-(3-methylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5R)-N-(2,4-dimethoxyphenyl)-2-morpholin-4-yl-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C20H23N5O6
    (5R)-N-(2,4-dimethoxyphenyl)-2-morpholin-4-yl-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(3-chlorophenyl)-2-[(2R,6S)-2,6-dimethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C21H24ClN5O3
    (5S)-N-(3-chlorophenyl)-2-[(2R,6S)-2,6-dimethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-[(2S,6S)-2,6-dimethylpiperidin-1-yl]-N-(3-methoxyphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H27N5O4
    (5S)-2-[(2S,6S)-2,6-dimethylpiperidin-1-yl]-N-(3-methoxyphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(4-acetamidophenyl)-2-[(2S,6S)-2,6-dimethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C23H28N6O4
    (5S)-N-(4-acetamidophenyl)-2-[(2S,6S)-2,6-dimethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-[(2R,6S)-2,6-dimethylpiperidin-1-yl]-4,7-dioxo-N-(4-propan-2-ylphenyl)-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C24H31N5O3
    (5S)-2-[(2R,6S)-2,6-dimethylpiperidin-1-yl]-4,7-dioxo-N-(4-propan-2-ylphenyl)-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— ethyl 1-[(5R)-5-[(2-methyl-5-nitrophenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C23H26N6O7
    ethyl 1-[(5R)-5-[(2-methyl-5-nitrophenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5S)-2-[(3S,5R)-3,5-dimethylpiperidin-1-yl]-N-(2-fluoro-4-methylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H26FN5O3
    (5S)-2-[(3S,5R)-3,5-dimethylpiperidin-1-yl]-N-(2-fluoro-4-methylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-[(2R,6S)-2,6-dimethylpiperidin-1-yl]-N-(3-methoxyphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H27N5O4
    (5S)-2-[(2R,6S)-2,6-dimethylpiperidin-1-yl]-N-(3-methoxyphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— 6-imino-11-methyl-7-(4-methylphenyl)-N-(2-morpholin-4-ylethyl)-2-oxo-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carboxamide —— C26H28N6O3
    6-imino-11-methyl-7-(4-methylphenyl)-N-(2-morpholin-4-ylethyl)-2-oxo-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carboxamide
    —— (5S)-N-(4-chlorophenyl)-2-[(2R,6R)-2,6-dimethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C21H24ClN5O3
    (5S)-N-(4-chlorophenyl)-2-[(2R,6R)-2,6-dimethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— ethyl 1-[(5R)-5-[(2-ethoxyphenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C24H29N5O6
    ethyl 1-[(5R)-5-[(2-ethoxyphenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5S)-2-[(2S,6S)-2,6-dimethylpiperidin-1-yl]-4,7-dioxo-N-[4-(trifluoromethoxy)phenyl]-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H24F3N5O4
    (5S)-2-[(2S,6S)-2,6-dimethylpiperidin-1-yl]-4,7-dioxo-N-[4-(trifluoromethoxy)phenyl]-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-[(2R,6R)-2,6-dimethylpiperidin-1-yl]-N-(3-nitrophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C21H24N6O5
    (5S)-2-[(2R,6R)-2,6-dimethylpiperidin-1-yl]-N-(3-nitrophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— ethyl 1-[(5R)-5-[(2-nitrophenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C22H24N6O7
    ethyl 1-[(5R)-5-[(2-nitrophenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— ethyl 1-[(5S)-5-[(2-ethylphenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C24H29N5O5
    ethyl 1-[(5S)-5-[(2-ethylphenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5S)-2-[(2R,6R)-2,6-dimethylpiperidin-1-yl]-N-(4-fluorophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C21H24FN5O3
    (5S)-2-[(2R,6R)-2,6-dimethylpiperidin-1-yl]-N-(4-fluorophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5R)-2-[(2R,6S)-2,6-dimethylpiperidin-1-yl]-N-(4-ethoxyphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C23H29N5O4
    (5R)-2-[(2R,6S)-2,6-dimethylpiperidin-1-yl]-N-(4-ethoxyphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-[(2S,6S)-2,6-dimethylpiperidin-1-yl]-N-(3-methylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H27N5O3
    (5S)-2-[(2S,6S)-2,6-dimethylpiperidin-1-yl]-N-(3-methylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (9R)-9-(furan-2-yl)-3-(2-morpholin-4-ylethylamino)-2,8,9,10-tetrahydropyrimido[4,5-c]isoquinoline-1,7-dione —— C21H23N5O4
    (9R)-9-(furan-2-yl)-3-(2-morpholin-4-ylethylamino)-2,8,9,10-tetrahydropyrimido[4,5-c]isoquinoline-1,7-dione
    —— 3-(1,1-Dioxothiolan-3-yl)-5-[[2-[2-(2-hydroxyethoxy)ethylamino]-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C21H24N4O6S3
    3-(1,1-Dioxothiolan-3-yl)-5-[[2-[2-(2-hydroxyethoxy)ethylamino]-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— (5S)-N-(3-chloro-2-methylphenyl)-2-morpholin-4-yl-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C19H20ClN5O4
    (5S)-N-(3-chloro-2-methylphenyl)-2-morpholin-4-yl-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(2-methoxy-5-methylphenyl)-2-morpholin-4-yl-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C20H23N5O5
    (5S)-N-(2-methoxy-5-methylphenyl)-2-morpholin-4-yl-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— ethyl 1-[(5R)-5-[(2-methoxyphenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C23H27N5O6
    ethyl 1-[(5R)-5-[(2-methoxyphenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5R)-2-morpholin-4-yl-4,7-dioxo-N-[3-(trifluoromethoxy)phenyl]-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C19H18F3N5O5
    (5R)-2-morpholin-4-yl-4,7-dioxo-N-[3-(trifluoromethoxy)phenyl]-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— ethyl 1-[(5S)-5-[(4-acetamidophenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C24H28N6O6
    ethyl 1-[(5S)-5-[(4-acetamidophenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5R)-N-(2-fluoro-4-methylphenyl)-4,7-dioxo-2-piperidin-1-yl-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C20H22FN5O3
    (5R)-N-(2-fluoro-4-methylphenyl)-4,7-dioxo-2-piperidin-1-yl-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— ethyl 1-[(5S)-5-[(3,5-dimethylphenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C24H29N5O5
    ethyl 1-[(5S)-5-[(3,5-dimethylphenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5S)-2-[(2S,6S)-2,6-dimethylpiperidin-1-yl]-N-(4-methoxyphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H27N5O4
    (5S)-2-[(2S,6S)-2,6-dimethylpiperidin-1-yl]-N-(4-methoxyphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-(4-carbamoylpiperidin-1-yl)-N-(2-methyl-4-nitrophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C21H23N7O6
    (5S)-2-(4-carbamoylpiperidin-1-yl)-N-(2-methyl-4-nitrophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-[(2R,6S)-2,6-dimethylpiperidin-1-yl]-N-(4-ethylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C23H29N5O3
    (5S)-2-[(2R,6S)-2,6-dimethylpiperidin-1-yl]-N-(4-ethylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— ethyl 1-[(5S)-5-[(5-chloro-2-methylphenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C23H26ClN5O5
    ethyl 1-[(5S)-5-[(5-chloro-2-methylphenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5R)-2-[(2S,6S)-2,6-dimethylpiperidin-1-yl]-N-(2-fluoro-4-methylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H26FN5O3
    (5R)-2-[(2S,6S)-2,6-dimethylpiperidin-1-yl]-N-(2-fluoro-4-methylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— ethyl 1-[(5S)-5-[(2-ethoxyphenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C24H29N5O6
    ethyl 1-[(5S)-5-[(2-ethoxyphenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— ethyl 1-[(5S)-5-[(2-methylphenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C23H27N5O5
    ethyl 1-[(5S)-5-[(2-methylphenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5S)-N-(2-chlorophenyl)-2-morpholin-4-yl-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C18H18ClN5O4
    (5S)-N-(2-chlorophenyl)-2-morpholin-4-yl-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5R)-2-morpholin-4-yl-4,7-dioxo-N-(2-phenylethyl)-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C20H23N5O4
    (5R)-2-morpholin-4-yl-4,7-dioxo-N-(2-phenylethyl)-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— ethyl 1-[(5R)-5-[(4-ethoxyphenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C24H29N5O6
    ethyl 1-[(5R)-5-[(4-ethoxyphenyl)carbamoyl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5R)-N-(2-chlorophenyl)-2-morpholin-4-yl-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C18H18ClN5O4
    (5R)-N-(2-chlorophenyl)-2-morpholin-4-yl-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(3,4-dichlorophenyl)-2-morpholin-4-yl-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C18H17Cl2N5O4
    (5S)-N-(3,4-dichlorophenyl)-2-morpholin-4-yl-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5R)-2-morpholin-4-yl-4,7-dioxo-N-(3,4,5-trimethoxyphenyl)-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C21H25N5O7
    (5R)-2-morpholin-4-yl-4,7-dioxo-N-(3,4,5-trimethoxyphenyl)-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— 3-[(2-Chlorophenyl)methyl]-5-[[7-methyl-4-oxo-2-(pentylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C25H25ClN4O2S2
    3-[(2-Chlorophenyl)methyl]-5-[[7-methyl-4-oxo-2-(pentylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 5-[[2-(Furan-2-ylmethylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-octyl-2-sulfanylidene-1,3-thiazolidin-4-one —— C26H30N4O3S2
    5-[[2-(Furan-2-ylmethylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-octyl-2-sulfanylidene-1,3-thiazolidin-4-one
    —— (5S)-2-[(2S,6S)-2,6-dimethylpiperidin-1-yl]-N-(2-fluoro-4-methylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H26FN5O3
    (5S)-2-[(2S,6S)-2,6-dimethylpiperidin-1-yl]-N-(2-fluoro-4-methylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide