摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词
历史搜索
    热门化合物HOT
    • 喹啉
    • 水杨醛
    • 二溴甲烷
    • 谷胱甘肽
    • L-乳酸
    • 苯巴比妥
    • 辣椒碱
    • 非那明
    • 百草枯
    • 联苯烯
    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
    —— (5R,6S)-5-(3-chlorophenyl)-2-[(3R,5S)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C21H22ClN5O2
    (5R,6S)-5-(3-chlorophenyl)-2-[(3R,5S)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6S)-5-(2-chloro-5-nitrophenyl)-2-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C20H19ClN6O4
    (5S,6S)-5-(2-chloro-5-nitrophenyl)-2-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6R)-5-(4-ethylphenyl)-2-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C22H25N5O2
    (5S,6R)-5-(4-ethylphenyl)-2-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-5-(3-chlorophenyl)-2-[(3R)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C20H20ClN5O2
    (5R,6S)-5-(3-chlorophenyl)-2-[(3R)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6S)-5-(2-chlorophenyl)-2-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C20H20ClN5O2
    (5S,6S)-5-(2-chlorophenyl)-2-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6R)-5-(3-methylphenyl)-2-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C21H23N5O2
    (5R,6R)-5-(3-methylphenyl)-2-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6R)-5-(4-ethoxyphenyl)-2-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C22H25N5O3
    (5S,6R)-5-(4-ethoxyphenyl)-2-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-[(3S)-3-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-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-5-(2,3,4-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6S)-2-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-5-[(E)-2-phenylethenyl]-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C22H23N5O2
    (5S,6S)-2-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-5-[(E)-2-phenylethenyl]-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-5-(4-bromophenyl)-2-[(3R)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C20H20BrN5O2
    (5R,6S)-5-(4-bromophenyl)-2-[(3R)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-[(3R,5R)-3,5-dimethylpiperidin-1-yl]-5-(3-nitrophenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C21H22N6O4
    (5R,6S)-2-[(3R,5R)-3,5-dimethylpiperidin-1-yl]-5-(3-nitrophenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-[(3S,5S)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-5-(2-prop-2-enoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C24H27N5O3
    (5R,6S)-2-[(3S,5S)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-5-(2-prop-2-enoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-5-(2,4-dimethoxyphenyl)-2-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C22H25N5O4
    (5R,6S)-5-(2,4-dimethoxyphenyl)-2-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6S)-5-(2-chloro-6-fluorophenyl)-2-[(3R)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C20H19ClFN5O2
    (5S,6S)-5-(2-chloro-6-fluorophenyl)-2-[(3R)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-[(3S,5S)-3,5-dimethylpiperidin-1-yl]-5-(4-methoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C22H25N5O3
    (5R,6S)-2-[(3S,5S)-3,5-dimethylpiperidin-1-yl]-5-(4-methoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-[(3S,5R)-3,5-dimethylpiperidin-1-yl]-5-(4-methylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C22H25N5O2
    (5R,6S)-2-[(3S,5R)-3,5-dimethylpiperidin-1-yl]-5-(4-methylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-5-(4-chlorophenyl)-2-[(3R)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C20H20ClN5O2
    (5R,6S)-5-(4-chlorophenyl)-2-[(3R)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6S)-5-(2,4-dichlorophenyl)-2-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C20H19Cl2N5O2
    (5S,6S)-5-(2,4-dichlorophenyl)-2-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-5-(3-chlorophenyl)-2-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C20H20ClN5O2
    (5R,6S)-5-(3-chlorophenyl)-2-[(3S)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6S)-2-[(3S,5R)-3,5-dimethylpiperidin-1-yl]-5-(3-methylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C22H25N5O2
    (5S,6S)-2-[(3S,5R)-3,5-dimethylpiperidin-1-yl]-5-(3-methylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-[(3S,5R)-3,5-dimethylpiperidin-1-yl]-5-(3-ethoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C23H27N5O3
    (5R,6S)-2-[(3S,5R)-3,5-dimethylpiperidin-1-yl]-5-(3-ethoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-[(3S)-3-methylpiperidin-1-yl]-5-(4-methylsulfanylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C21H23N5O2S
    (5R,6S)-2-[(3S)-3-methylpiperidin-1-yl]-5-(4-methylsulfanylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6S)-5-[4-(diethylamino)phenyl]-2-[(3R,5S)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C25H32N6O2
    (5S,6S)-5-[4-(diethylamino)phenyl]-2-[(3R,5S)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-[(3R)-3-methylpiperidin-1-yl]-4,7-dioxo-5-(2,4,5-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C23H27N5O5
    (5R,6S)-2-[(3R)-3-methylpiperidin-1-yl]-4,7-dioxo-5-(2,4,5-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-[(3R,5S)-3,5-dimethylpiperidin-1-yl]-5-(4-ethylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C23H27N5O2
    (5R,6S)-2-[(3R,5S)-3,5-dimethylpiperidin-1-yl]-5-(4-ethylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-[(3R)-3-methylpiperidin-1-yl]-4,7-dioxo-5-(4-phenylmethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C27H27N5O3
    (5R,6S)-2-[(3R)-3-methylpiperidin-1-yl]-4,7-dioxo-5-(4-phenylmethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-5-[4-(dimethylamino)phenyl]-2-[(3R)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C22H26N6O2
    (5R,6S)-5-[4-(dimethylamino)phenyl]-2-[(3R)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-[(3S,5S)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-5-(2,4,5-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C24H29N5O5
    (5R,6S)-2-[(3S,5S)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-5-(2,4,5-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-[(3S,5S)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-5-(3,4,5-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C24H29N5O5
    (5R,6S)-2-[(3S,5S)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-5-(3,4,5-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-5-[4-(dimethylamino)phenyl]-2-[(3R,5S)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C23H28N6O2
    (5R,6S)-5-[4-(dimethylamino)phenyl]-2-[(3R,5S)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6S)-5-(furan-2-yl)-2-[(3R)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C18H19N5O3
    (5S,6S)-5-(furan-2-yl)-2-[(3R)-3-methylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— ethyl 1-[(5S,6S)-6-cyano-5-(3-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-(3-methoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5R,6S)-2-[(3R,5R)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-5-(4-phenylmethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C28H29N5O3
    (5R,6S)-2-[(3R,5R)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-5-(4-phenylmethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6S)-2-[(3S,5S)-3,5-dimethylpiperidin-1-yl]-5-(furan-2-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C19H21N5O3
    (5S,6S)-2-[(3S,5S)-3,5-dimethylpiperidin-1-yl]-5-(furan-2-yl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5R,6S)-2-[(3R,5R)-3,5-dimethylpiperidin-1-yl]-5-naphthalen-1-yl-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C25H25N5O2
    (5R,6S)-2-[(3R,5R)-3,5-dimethylpiperidin-1-yl]-5-naphthalen-1-yl-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— ethyl 1-[(5S,6S)-6-cyano-4,7-dioxo-5-(2-prop-2-enoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C25H27N5O5
    ethyl 1-[(5S,6S)-6-cyano-4,7-dioxo-5-(2-prop-2-enoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5R,6S)-2-[(3S,5R)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-5-(4-propoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C24H29N5O3
    (5R,6S)-2-[(3S,5R)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-5-(4-propoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— ethyl 1-[(5R,6R)-6-cyano-5-(3-nitrophenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C22H22N6O6
    ethyl 1-[(5R,6R)-6-cyano-5-(3-nitrophenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5S,6S)-5-(2-chloro-6-fluorophenyl)-2-[(3R,5R)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C21H21ClFN5O2
    (5S,6S)-5-(2-chloro-6-fluorophenyl)-2-[(3R,5R)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— ethyl 1-[(5S,6S)-5-(4-chlorophenyl)-6-cyano-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C22H22ClN5O4
    ethyl 1-[(5S,6S)-5-(4-chlorophenyl)-6-cyano-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— ethyl 1-[(5R,6R)-6-cyano-4,7-dioxo-5-(4-propan-2-ylphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C25H29N5O4
    ethyl 1-[(5R,6R)-6-cyano-4,7-dioxo-5-(4-propan-2-ylphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5S,6S)-5-(2-chlorophenyl)-2-[(3R,5S)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C21H22ClN5O2
    (5S,6S)-5-(2-chlorophenyl)-2-[(3R,5S)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— (5S,6S)-2-[(3R,5R)-3,5-dimethylpiperidin-1-yl]-5-(2-fluorophenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C21H22FN5O2
    (5S,6S)-2-[(3R,5R)-3,5-dimethylpiperidin-1-yl]-5-(2-fluorophenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— ethyl 1-[(5R,6R)-5-(4-bromophenyl)-6-cyano-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C22H22BrN5O4
    ethyl 1-[(5R,6R)-5-(4-bromophenyl)-6-cyano-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— (5R,6S)-5-[4-(diethylamino)phenyl]-2-[(3R,5S)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile —— C25H32N6O2
    (5R,6S)-5-[4-(diethylamino)phenyl]-2-[(3R,5S)-3,5-dimethylpiperidin-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile
    —— ethyl 1-[(5S,6R)-6-cyano-5-(3-ethoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C24H27N5O5
    ethyl 1-[(5S,6R)-6-cyano-5-(3-ethoxyphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— ethyl 1-[(5S,6R)-6-cyano-5-(4-methylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C23H25N5O4
    ethyl 1-[(5S,6R)-6-cyano-5-(4-methylphenyl)-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— ethyl 1-[(5S,6S)-6-cyano-4,7-dioxo-5-[(E)-2-phenylethenyl]-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C24H25N5O4
    ethyl 1-[(5S,6S)-6-cyano-4,7-dioxo-5-[(E)-2-phenylethenyl]-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— ethyl 1-[(5R,6S)-6-cyano-5-[(1R)-cyclohex-3-en-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C22H27N5O4
    ethyl 1-[(5R,6S)-6-cyano-5-[(1R)-cyclohex-3-en-1-yl]-4,7-dioxo-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate
    —— ethyl 1-[(5S,6S)-6-cyano-4,7-dioxo-5-(3,4,5-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate —— C25H29N5O7
    ethyl 1-[(5S,6S)-6-cyano-4,7-dioxo-5-(3,4,5-trimethoxyphenyl)-1,5,6,8-tetrahydropyrido[2,3-d]pyrimidin-2-yl]piperidine-4-carboxylate