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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,6S)-2-[(2R)-2-methylpiperidin-1-yl]-4,7-dioxo-5-pyridin-2-yl-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C19H20N6O2
    (5S,6S)-2-[(2R)-2-methylpiperidin-1-yl]-4,7-dioxo-5-pyridin-2-yl-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(4-ethoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C23H25N5O5
    (5S,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(4-ethoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-5-[(1S)-cyclohex-3-en-1-yl]-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C21H25N5O4
    (5R,6S)-5-[(1S)-cyclohex-3-en-1-yl]-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6R)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(3-ethoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C23H25N5O5
    (5S,6R)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(3-ethoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(3-ethoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C23H25N5O5
    (5S,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(3-ethoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6R)-5-(3,5-difluorophenyl)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C21H19F2N5O4
    (5S,6R)-5-(3,5-difluorophenyl)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6R)-5-(3-methylphenyl)-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C21H23N5O2
    (5R,6R)-5-(3-methylphenyl)-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-5-(3,4,5-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C23H27N5O5
    (5R,6S)-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-5-(3,4,5-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-[4-(2-methylpropyl)phenyl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C25H29N5O4
    (5R,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-[4-(2-methylpropyl)phenyl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(3-methylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C22H23N5O4
    (5R,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(3-methylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6R)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(4-methylsulfanylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C22H23N5O4S
    (5S,6R)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(4-methylsulfanylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-5-[4-(diethylamino)phenyl]-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C25H30N6O4
    (5R,6S)-5-[4-(diethylamino)phenyl]-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— ethyl 1-[(5R,6R)-6-cyano-4,7-dioxo-5-(2,3,4-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C25H29N5O7
    ethyl 1-[(5R,6R)-6-cyano-4,7-dioxo-5-(2,3,4-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5R,6S)-5-[4-(3-methylbutoxy)phenyl]-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C25H31N5O3
    (5R,6S)-5-[4-(3-methylbutoxy)phenyl]-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— ethyl 1-[(5R,6R)-6-cyano-4,7-dioxo-5-pyridin-3-yl-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C21H22N6O4
    ethyl 1-[(5R,6R)-6-cyano-4,7-dioxo-5-pyridin-3-yl-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5R,6R)-5-(4-ethylphenyl)-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C22H25N5O2
    (5R,6R)-5-(4-ethylphenyl)-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6R)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(4-methoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C22H23N5O5
    (5S,6R)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(4-methoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-5-(2,4-dichlorophenyl)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C21H19Cl2N5O4
    (5R,6S)-5-(2,4-dichlorophenyl)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-4,7-dioxo-5-(3,4,5-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C24H27N5O7
    (5R,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-4,7-dioxo-5-(3,4,5-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-5-(3,4-dimethoxyphenyl)-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C22H25N5O4
    (5R,6S)-5-(3,4-dimethoxyphenyl)-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6S)-5-(2-fluorophenyl)-2-[(2R)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C20H20FN5O2
    (5S,6S)-5-(2-fluorophenyl)-2-[(2R)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-[(2S)-2-methylpiperidin-1-yl]-5-(4-methylsulfanylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C21H23N5O2S
    (5R,6S)-2-[(2S)-2-methylpiperidin-1-yl]-5-(4-methylsulfanylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6R)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(1H-indol-3-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C23H22N6O4
    (5S,6R)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(1H-indol-3-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6R)-5-[4-(diethylamino)phenyl]-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C25H30N6O4
    (5R,6R)-5-[4-(diethylamino)phenyl]-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(2-hydroxy-3-methoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C22H23N5O6
    (5R,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(2-hydroxy-3-methoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6R)-5-(4-bromophenyl)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C21H20BrN5O4
    (5R,6R)-5-(4-bromophenyl)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6S)-5-(2-fluoro-5-nitrophenyl)-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C20H19FN6O4
    (5S,6S)-5-(2-fluoro-5-nitrophenyl)-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-[(2R)-2-methylpiperidin-1-yl]-4,7-dioxo-5-(2,3,4-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C23H27N5O5
    (5R,6S)-2-[(2R)-2-methylpiperidin-1-yl]-4,7-dioxo-5-(2,3,4-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— ethyl 1-[(5S,6S)-6-cyano-5-(2,4-dichlorophenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C22H21Cl2N5O4
    ethyl 1-[(5S,6S)-6-cyano-5-(2,4-dichlorophenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5R,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(4-methylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C22H23N5O4
    (5R,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(4-methylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-5-(3-methoxyphenyl)-2-[(2R)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C21H23N5O3
    (5R,6S)-5-(3-methoxyphenyl)-2-[(2R)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-5-(4-chlorophenyl)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C21H20ClN5O4
    (5R,6S)-5-(4-chlorophenyl)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— ethyl 1-[(5S,6R)-6-cyano-5-(2,3-dimethoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C24H27N5O6
    ethyl 1-[(5S,6R)-6-cyano-5-(2,3-dimethoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5S,6S)-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-5-(4-propoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C23H27N5O3
    (5S,6S)-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-5-(4-propoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6S)-5-(4-ethylphenyl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C23H27N5O2
    (5S,6S)-5-(4-ethylphenyl)-2-[(2S)-2-ethylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(4-fluorophenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C21H20FN5O4
    (5S,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(4-fluorophenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— ethyl 1-[(5R,6S)-6-cyano-5-(2,4-dimethoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C24H27N5O6
    ethyl 1-[(5R,6S)-6-cyano-5-(2,4-dimethoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— ethyl 1-[(5R,6S)-6-cyano-4,7-dioxo-5-(2,4,5-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C25H29N5O7
    ethyl 1-[(5R,6S)-6-cyano-4,7-dioxo-5-(2,4,5-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5R,6S)-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-5-pyridin-3-yl-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C19H20N6O2
    (5R,6S)-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-5-pyridin-3-yl-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(3-nitrophenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C21H20N6O6
    (5S,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(3-nitrophenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— ethyl 1-[(5S,6S)-6-cyano-5-(2-ethoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C24H27N5O5
    ethyl 1-[(5S,6S)-6-cyano-5-(2-ethoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— ethyl 1-[(5S,6S)-6-cyano-5-(2-methoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C23H25N5O5
    ethyl 1-[(5S,6S)-6-cyano-5-(2-methoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5S,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(4-methoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C22H23N5O5
    (5S,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(4-methoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-[(2S)-2-methylpiperidin-1-yl]-5-[4-(2-methylpropyl)phenyl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C24H29N5O2
    (5R,6S)-2-[(2S)-2-methylpiperidin-1-yl]-5-[4-(2-methylpropyl)phenyl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(4-ethylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C23H25N5O4
    (5R,6S)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-5-(4-ethylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-5-(3-ethoxyphenyl)-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C22H25N5O3
    (5R,6S)-5-(3-ethoxyphenyl)-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— ethyl 1-[(5R,6S)-6-cyano-5-(2,3-dimethoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C24H27N5O6
    ethyl 1-[(5R,6S)-6-cyano-5-(2,3-dimethoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5R,6S)-5-(2-chloro-6-fluorophenyl)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C21H19ClFN5O4
    (5R,6S)-5-(2-chloro-6-fluorophenyl)-2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6R)-5-(4-ethoxyphenyl)-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C22H25N5O3
    (5R,6R)-5-(4-ethoxyphenyl)-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6R)-5-[4-(diethylamino)phenyl]-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C24H30N6O2
    (5S,6R)-5-[4-(diethylamino)phenyl]-2-[(2S)-2-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile