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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
    —— 3-[(4-Fluorophenyl)methyl]-5-[[7-methyl-4-oxo-2-(propylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C23H21FN4O2S2
    3-[(4-Fluorophenyl)methyl]-5-[[7-methyl-4-oxo-2-(propylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 5-[[2-(2-Hydroxyethylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-[(4-methylphenyl)methyl]-2-sulfanylidene-1,3-thiazolidin-4-one —— C23H22N4O3S2
    5-[[2-(2-Hydroxyethylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-[(4-methylphenyl)methyl]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 5-[[2-(Ethylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-[(4-methylphenyl)methyl]-2-sulfanylidene-1,3-thiazolidin-4-one —— C23H22N4O2S2
    5-[[2-(Ethylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-[(4-methylphenyl)methyl]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 5-[[2-(Ethylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-[(4-fluorophenyl)methyl]-2-sulfanylidene-1,3-thiazolidin-4-one —— C22H19FN4O2S2
    5-[[2-(Ethylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-[(4-fluorophenyl)methyl]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-[(4-Fluorophenyl)methyl]-5-[(9-methyl-4-oxo-2-piperidin-1-ylpyrido[1,2-a]pyrimidin-3-yl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C25H23FN4O2S2
    3-[(4-Fluorophenyl)methyl]-5-[(9-methyl-4-oxo-2-piperidin-1-ylpyrido[1,2-a]pyrimidin-3-yl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(cyclohexylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C27H26N4O4S2
    3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(cyclohexylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(3-ethoxypropylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C26H26N4O5S2
    3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(3-ethoxypropylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(1,3-Benzodioxol-5-ylmethyl)-5-[[4-oxo-2-(pentylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C25H24N4O4S2
    3-(1,3-Benzodioxol-5-ylmethyl)-5-[[4-oxo-2-(pentylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[[2-(3-ethoxypropylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C23H28N4O3S2
    3-Cyclopentyl-5-[[2-(3-ethoxypropylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(butylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C25H24N4O4S2
    3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(butylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(1,3-Benzodioxol-5-ylmethyl)-5-[[7-methyl-4-oxo-2-(pentylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C26H26N4O4S2
    3-(1,3-Benzodioxol-5-ylmethyl)-5-[[7-methyl-4-oxo-2-(pentylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(3-ethoxypropylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C25H24N4O5S2
    3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(3-ethoxypropylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(cyclohexylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C27H26N4O4S2
    3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(cyclohexylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(2-methylpiperidin-1-yl)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C26H24N4O4S2
    3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(2-methylpiperidin-1-yl)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(3-ethoxypropylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C26H26N4O5S2
    3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(3-ethoxypropylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(cyclohexylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C26H24N4O4S2
    3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(cyclohexylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(3,5-dimethylpiperidin-1-yl)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C28H28N4O4S2
    3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(3,5-dimethylpiperidin-1-yl)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(1,3-Benzodioxol-5-ylmethyl)-5-[[9-methyl-2-(2-methylpiperidin-1-yl)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C27H26N4O4S2
    3-(1,3-Benzodioxol-5-ylmethyl)-5-[[9-methyl-2-(2-methylpiperidin-1-yl)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(1,3-Benzodioxol-5-ylmethyl)-5-[[9-methyl-4-oxo-2-(pentylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C26H26N4O4S2
    3-(1,3-Benzodioxol-5-ylmethyl)-5-[[9-methyl-4-oxo-2-(pentylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[[2-(ethylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C20H22N4O2S2
    3-Cyclopentyl-5-[[2-(ethylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[[9-methyl-4-oxo-2-(propylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C21H24N4O2S2
    3-Cyclopentyl-5-[[9-methyl-4-oxo-2-(propylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[[4-oxo-2-(propylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C20H22N4O2S2
    3-Cyclopentyl-5-[[4-oxo-2-(propylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[[7-methyl-4-oxo-2-(prop-2-enylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C21H22N4O2S2
    3-Cyclopentyl-5-[[7-methyl-4-oxo-2-(prop-2-enylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[[9-methyl-4-oxo-2-(prop-2-enylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C21H22N4O2S2
    3-Cyclopentyl-5-[[9-methyl-4-oxo-2-(prop-2-enylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[(7-methyl-4-oxo-2-piperidin-1-ylpyrido[1,2-a]pyrimidin-3-yl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C23H26N4O2S2
    3-Cyclopentyl-5-[(7-methyl-4-oxo-2-piperidin-1-ylpyrido[1,2-a]pyrimidin-3-yl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[(9-methyl-4-oxo-2-piperidin-1-ylpyrido[1,2-a]pyrimidin-3-yl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C23H26N4O2S2
    3-Cyclopentyl-5-[(9-methyl-4-oxo-2-piperidin-1-ylpyrido[1,2-a]pyrimidin-3-yl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[[7-methyl-4-oxo-2-(propylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C21H24N4O2S2
    3-Cyclopentyl-5-[[7-methyl-4-oxo-2-(propylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[[4-oxo-2-(prop-2-enylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C20H20N4O2S2
    3-Cyclopentyl-5-[[4-oxo-2-(prop-2-enylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[[7-methyl-4-oxo-2-(pentylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C23H28N4O2S2
    3-Cyclopentyl-5-[[7-methyl-4-oxo-2-(pentylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[[4-oxo-2-(pentylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C22H26N4O2S2
    3-Cyclopentyl-5-[[4-oxo-2-(pentylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[[9-methyl-4-oxo-2-(pentylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C23H28N4O2S2
    3-Cyclopentyl-5-[[9-methyl-4-oxo-2-(pentylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(3-Ethoxypropyl)-5-[[4-oxo-2-(2-phenylethylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C25H26N4O3S2
    3-(3-Ethoxypropyl)-5-[[4-oxo-2-(2-phenylethylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(3-Ethoxypropyl)-5-[[9-methyl-2-[(4-methylcyclohexyl)amino]-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C25H32N4O3S2
    3-(3-Ethoxypropyl)-5-[[9-methyl-2-[(4-methylcyclohexyl)amino]-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[(9-methyl-2-morpholin-4-yl-4-oxopyrido[1,2-a]pyrimidin-3-yl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C22H24N4O3S2
    3-Cyclopentyl-5-[(9-methyl-2-morpholin-4-yl-4-oxopyrido[1,2-a]pyrimidin-3-yl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(3-Ethoxypropyl)-5-[[7-methyl-2-[(4-methylcyclohexyl)amino]-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C25H32N4O3S2
    3-(3-Ethoxypropyl)-5-[[7-methyl-2-[(4-methylcyclohexyl)amino]-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[[4-oxo-2-(oxolan-2-ylmethylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C22H24N4O3S2
    3-Cyclopentyl-5-[[4-oxo-2-(oxolan-2-ylmethylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(3-Ethoxypropyl)-5-[[7-methyl-4-oxo-2-(2-phenylethylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C26H28N4O3S2
    3-(3-Ethoxypropyl)-5-[[7-methyl-4-oxo-2-(2-phenylethylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— (3S)-1-(1,3-dimethyl-2,4-dioxopyrido[2,3-d]pyrimidine-6-carbonyl)pyrrolidine-3-carboxamide —— C15H17N5O4
    (3S)-1-(1,3-dimethyl-2,4-dioxopyrido[2,3-d]pyrimidine-6-carbonyl)pyrrolidine-3-carboxamide
    —— (3R)-1-(2,4-dioxo-1H-pyrido[2,3-d]pyrimidine-6-carbonyl)pyrrolidine-3-carboxamide —— C13H13N5O4
    (3R)-1-(2,4-dioxo-1H-pyrido[2,3-d]pyrimidine-6-carbonyl)pyrrolidine-3-carboxamide
    —— (3S)-1-(2,4-dioxo-1H-pyrido[2,3-d]pyrimidine-6-carbonyl)pyrrolidine-3-carboxamide —— C13H13N5O4
    (3S)-1-(2,4-dioxo-1H-pyrido[2,3-d]pyrimidine-6-carbonyl)pyrrolidine-3-carboxamide
    —— (3R)-1-(1-methyl-2,4-dioxopyrido[2,3-d]pyrimidine-7-carbonyl)pyrrolidine-3-carboxamide —— C14H15N5O4
    (3R)-1-(1-methyl-2,4-dioxopyrido[2,3-d]pyrimidine-7-carbonyl)pyrrolidine-3-carboxamide
    —— 3-Cyclopentyl-5-[[2-(furan-2-ylmethylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C23H22N4O3S2
    3-Cyclopentyl-5-[[2-(furan-2-ylmethylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(3-Ethoxypropyl)-5-[[9-methyl-4-oxo-2-(2-phenylethylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C26H28N4O3S2
    3-(3-Ethoxypropyl)-5-[[9-methyl-4-oxo-2-(2-phenylethylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 5-[[2-(Cyclohexylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-(3-ethoxypropyl)-2-sulfanylidene-1,3-thiazolidin-4-one —— C24H30N4O3S2
    5-[[2-(Cyclohexylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-(3-ethoxypropyl)-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[[2-(2-hydroxyethylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C20H22N4O3S2
    3-Cyclopentyl-5-[[2-(2-hydroxyethylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[(7-methyl-2-morpholin-4-yl-4-oxopyrido[1,2-a]pyrimidin-3-yl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C22H24N4O3S2
    3-Cyclopentyl-5-[(7-methyl-2-morpholin-4-yl-4-oxopyrido[1,2-a]pyrimidin-3-yl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[[2-(2-hydroxyethylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C20H22N4O3S2
    3-Cyclopentyl-5-[[2-(2-hydroxyethylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(3-Ethoxypropyl)-5-[[2-[(4-methylcyclohexyl)amino]-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C24H30N4O3S2
    3-(3-Ethoxypropyl)-5-[[2-[(4-methylcyclohexyl)amino]-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[[7-methyl-4-oxo-2-(oxolan-2-ylmethylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C23H26N4O3S2
    3-Cyclopentyl-5-[[7-methyl-4-oxo-2-(oxolan-2-ylmethylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Cyclopentyl-5-[[2-(2-hydroxyethylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C19H20N4O3S2
    3-Cyclopentyl-5-[[2-(2-hydroxyethylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one