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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)-2-ethylpiperidin-1-yl]-4,7-dioxo-N-(2-phenylethyl)-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C23H29N5O3
    (5S)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-N-(2-phenylethyl)-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(4-ethoxyphenyl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C23H29N5O4
    (5S)-N-(4-ethoxyphenyl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— Methyl 5-(2-fluorophenyl)-1,3,7-trimethyl-2,4-dioxo-5,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylate —— C18H18FN3O4
    Methyl 5-(2-fluorophenyl)-1,3,7-trimethyl-2,4-dioxo-5,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylate
    —— 8-(4-bromophenyl)-11-methyl-13-propyl-5-oxa-2,11,13-triazatricyclo[7.4.0.03,7]trideca-1(9),3(7)-diene-6,10,12-trione —— C19H18BrN3O4
    8-(4-bromophenyl)-11-methyl-13-propyl-5-oxa-2,11,13-triazatricyclo[7.4.0.03,7]trideca-1(9),3(7)-diene-6,10,12-trione
    —— Methyl 1,3,7-trimethyl-5-(3-methylthiophen-2-yl)-2,4-dioxo-1,2,3,4,5,8-hexahydropyrido[2,3-d]pyrimidine-6-carboxylate —— C17H19N3O4S
    Methyl 1,3,7-trimethyl-5-(3-methylthiophen-2-yl)-2,4-dioxo-1,2,3,4,5,8-hexahydropyrido[2,3-d]pyrimidine-6-carboxylate
    —— (5S)-N-(3,5-dichlorophenyl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C21H23Cl2N5O3
    (5S)-N-(3,5-dichlorophenyl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-[(2S)-2-ethylpiperidin-1-yl]-N-(3-fluorophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C21H24FN5O3
    (5S)-2-[(2S)-2-ethylpiperidin-1-yl]-N-(3-fluorophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5R)-N-(2-methoxy-5-methylphenyl)-4,7-dioxo-2-pyrrolidin-1-yl-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C20H23N5O4
    (5R)-N-(2-methoxy-5-methylphenyl)-4,7-dioxo-2-pyrrolidin-1-yl-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-[(2R)-2-ethylpiperidin-1-yl]-N-(2-nitrophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C21H24N6O5
    (5S)-2-[(2R)-2-ethylpiperidin-1-yl]-N-(2-nitrophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(2-chloro-4-methylphenyl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H26ClN5O3
    (5S)-N-(2-chloro-4-methylphenyl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-benzyl-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H27N5O3
    (5S)-N-benzyl-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5R)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-N-naphthalen-1-yl-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C27H23N5O3
    (5R)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-N-naphthalen-1-yl-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-[(2R)-2-ethylpiperidin-1-yl]-N-(2-methoxy-5-methylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C23H29N5O4
    (5S)-2-[(2R)-2-ethylpiperidin-1-yl]-N-(2-methoxy-5-methylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(3,5-dichlorophenyl)-2-[(2R)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C21H23Cl2N5O3
    (5S)-N-(3,5-dichlorophenyl)-2-[(2R)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(4-ethoxyphenyl)-2-[(2R)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C23H29N5O4
    (5S)-N-(4-ethoxyphenyl)-2-[(2R)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(3-chloro-2-methylphenyl)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C24H22ClN5O3
    (5S)-N-(3-chloro-2-methylphenyl)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5R)-N-(2-ethylphenyl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C23H29N5O3
    (5R)-N-(2-ethylphenyl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-[(2S)-2-ethylpiperidin-1-yl]-N-(2-fluorophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C21H24FN5O3
    (5S)-2-[(2S)-2-ethylpiperidin-1-yl]-N-(2-fluorophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(5-chloro-2-methylphenyl)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C24H22ClN5O3
    (5S)-N-(5-chloro-2-methylphenyl)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-[(2R)-2-ethylpiperidin-1-yl]-N-(3-methoxyphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H27N5O4
    (5S)-2-[(2R)-2-ethylpiperidin-1-yl]-N-(3-methoxyphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5R)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-N-(4-ethylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C25H25N5O3
    (5R)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-N-(4-ethylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5R)-N-(5-chloro-2-methoxyphenyl)-4,7-dioxo-2-pyrrolidin-1-yl-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C19H20ClN5O4
    (5R)-N-(5-chloro-2-methoxyphenyl)-4,7-dioxo-2-pyrrolidin-1-yl-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(2,5-dichlorophenyl)-4,7-dioxo-2-pyrrolidin-1-yl-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C18H17Cl2N5O3
    (5S)-N-(2,5-dichlorophenyl)-4,7-dioxo-2-pyrrolidin-1-yl-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(3-chloro-2-methylphenyl)-2-[(2R)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H26ClN5O3
    (5S)-N-(3-chloro-2-methylphenyl)-2-[(2R)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(2,4-dimethylphenyl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C23H29N5O3
    (5S)-N-(2,4-dimethylphenyl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-N-(2,5-dimethylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C25H25N5O3
    (5S)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-N-(2,5-dimethylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-[4-chloro-3-(trifluoromethyl)phenyl]-2-[(2R)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H23ClF3N5O3
    (5S)-N-[4-chloro-3-(trifluoromethyl)phenyl]-2-[(2R)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-N-(4-methyl-3-nitrophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C24H22N6O5
    (5S)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-N-(4-methyl-3-nitrophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5R)-N-(2,5-dimethylphenyl)-4,7-dioxo-2-pyrrolidin-1-yl-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C20H23N5O3
    (5R)-N-(2,5-dimethylphenyl)-4,7-dioxo-2-pyrrolidin-1-yl-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5R)-N-(2-chloro-4-methylphenyl)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C24H22ClN5O3
    (5R)-N-(2-chloro-4-methylphenyl)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5R)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-N-(2-ethylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C25H25N5O3
    (5R)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-N-(2-ethylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(2,4-dichlorophenyl)-2-[(2R)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C21H23Cl2N5O3
    (5S)-N-(2,4-dichlorophenyl)-2-[(2R)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(2-methoxy-5-methylphenyl)-4,7-dioxo-2-pyrrolidin-1-yl-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C20H23N5O4
    (5S)-N-(2-methoxy-5-methylphenyl)-4,7-dioxo-2-pyrrolidin-1-yl-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-[(2S)-2-ethylpiperidin-1-yl]-N-(2-nitrophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C21H24N6O5
    (5S)-2-[(2S)-2-ethylpiperidin-1-yl]-N-(2-nitrophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-[4-chloro-3-(trifluoromethyl)phenyl]-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H23ClF3N5O3
    (5S)-N-[4-chloro-3-(trifluoromethyl)phenyl]-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-[(2R)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C23H27N5O5
    (5S)-N-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-[(2R)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5R)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-N-(2-ethoxyphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C25H25N5O4
    (5R)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-N-(2-ethoxyphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-[(2R)-2-ethylpiperidin-1-yl]-N-naphthalen-1-yl-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C25H27N5O3
    (5S)-2-[(2R)-2-ethylpiperidin-1-yl]-N-naphthalen-1-yl-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5R)-N-(3-chloro-2-methylphenyl)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C24H22ClN5O3
    (5R)-N-(3-chloro-2-methylphenyl)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(5-chloro-2-methoxyphenyl)-2-[(2R)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H26ClN5O4
    (5S)-N-(5-chloro-2-methoxyphenyl)-2-[(2R)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(5-chloro-2-methoxyphenyl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H26ClN5O4
    (5S)-N-(5-chloro-2-methoxyphenyl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(2,5-dimethylphenyl)-4,7-dioxo-2-pyrrolidin-1-yl-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C20H23N5O3
    (5S)-N-(2,5-dimethylphenyl)-4,7-dioxo-2-pyrrolidin-1-yl-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-[(2R)-2-ethylpiperidin-1-yl]-N-(4-methyl-3-nitrophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H26N6O5
    (5S)-2-[(2R)-2-ethylpiperidin-1-yl]-N-(4-methyl-3-nitrophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(3,4-difluorophenyl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C21H23F2N5O3
    (5S)-N-(3,4-difluorophenyl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-N-naphthalen-1-yl-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C27H23N5O3
    (5S)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-N-naphthalen-1-yl-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-N-(4-ethylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C25H25N5O3
    (5S)-2-(3,4-dihydro-1H-isoquinolin-2-yl)-N-(4-ethylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(2-chlorophenyl)-2-[(2R)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C21H24ClN5O3
    (5S)-N-(2-chlorophenyl)-2-[(2R)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-2-[(2S)-2-ethylpiperidin-1-yl]-N-(2-methyl-4-nitrophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H26N6O5
    (5S)-2-[(2S)-2-ethylpiperidin-1-yl]-N-(2-methyl-4-nitrophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(5-chloro-2-methylphenyl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C22H26ClN5O3
    (5S)-N-(5-chloro-2-methylphenyl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide
    —— (5S)-N-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide —— C23H27N5O5
    (5S)-N-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide