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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-Benzyl-5-[[4-oxo-2-(oxolan-2-ylmethylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C24H22N4O3S2
    3-Benzyl-5-[[4-oxo-2-(oxolan-2-ylmethylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— N-Cyclopentyl-6-imino-11-methyl-2-oxo-7-(3-propan-2-yloxypropyl)-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carboxamide —— C24H31N5O3
    N-Cyclopentyl-6-imino-11-methyl-2-oxo-7-(3-propan-2-yloxypropyl)-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carboxamide
    —— 5-[[2-(Dipropylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-octyl-2-sulfanylidene-1,3-thiazolidin-4-one —— C27H38N4O2S2
    5-[[2-(Dipropylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-octyl-2-sulfanylidene-1,3-thiazolidin-4-one
    —— Ethyl 1-[3-(2-cyano-3-methoxy-3-oxoprop-1-enyl)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-2-yl]piperidine-3-carboxylate —— C22H24N4O5
    Ethyl 1-[3-(2-cyano-3-methoxy-3-oxoprop-1-enyl)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-2-yl]piperidine-3-carboxylate
    —— 2-cyano-3-[9-methyl-2-(3-methylpiperidin-1-yl)-4-oxopyrido[1,2-a]pyrimidin-3-yl]-N-(2-phenylethyl)prop-2-enamide —— C27H29N5O2
    2-cyano-3-[9-methyl-2-(3-methylpiperidin-1-yl)-4-oxopyrido[1,2-a]pyrimidin-3-yl]-N-(2-phenylethyl)prop-2-enamide
    —— Ethyl 1-[4-oxo-3-[(4-oxo-3-propan-2-yl-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]pyrido[1,2-a]pyrimidin-2-yl]piperidine-4-carboxylate —— C23H26N4O4S2
    Ethyl 1-[4-oxo-3-[(4-oxo-3-propan-2-yl-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]pyrido[1,2-a]pyrimidin-2-yl]piperidine-4-carboxylate
    —— 3-[(4-Methoxyphenyl)methyl]-5-[(9-methyl-2-morpholin-4-yl-4-oxopyrido[1,2-a]pyrimidin-3-yl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C25H24N4O4S2
    3-[(4-Methoxyphenyl)methyl]-5-[(9-methyl-2-morpholin-4-yl-4-oxopyrido[1,2-a]pyrimidin-3-yl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— ethyl (2Z)-10-methyl-5-oxo-1-propyl-2-[(thiophen-2-ylcarbonyl)imino]-1,5-dihydro-2H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxylate —— C23H22N4O4S
    ethyl (2Z)-10-methyl-5-oxo-1-propyl-2-[(thiophen-2-ylcarbonyl)imino]-1,5-dihydro-2H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxylate
    —— ethyl (2Z)-2-{[(3,5-dimethoxyphenyl)carbonyl]imino}-10-methyl-1-(2-methylpropyl)-5-oxo-1,5-dihydro-2H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxylate —— C28H30N4O6
    ethyl (2Z)-2-{[(3,5-dimethoxyphenyl)carbonyl]imino}-10-methyl-1-(2-methylpropyl)-5-oxo-1,5-dihydro-2H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxylate
    —— 5-[[2-(3-Methoxypropylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-(3-phenylpropyl)-2-sulfanylidene-1,3-thiazolidin-4-one —— C26H28N4O3S2
    5-[[2-(3-Methoxypropylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-(3-phenylpropyl)-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 5-[[2-[2-(2-Hydroxyethoxy)ethylamino]-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-(1-phenylethyl)-2-sulfanylidene-1,3-thiazolidin-4-one —— C24H24N4O4S2
    5-[[2-[2-(2-Hydroxyethoxy)ethylamino]-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-(1-phenylethyl)-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 2-cyano-N-methyl-3-[9-methyl-2-(4-methylpiperidin-1-yl)-4-oxopyrido[1,2-a]pyrimidin-3-yl]prop-2-enamide —— C20H23N5O2
    2-cyano-N-methyl-3-[9-methyl-2-(4-methylpiperidin-1-yl)-4-oxopyrido[1,2-a]pyrimidin-3-yl]prop-2-enamide
    —— 6-[5-[(7-Methyl-2-morpholin-4-yl-4-oxopyrido[1,2-a]pyrimidin-3-yl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]hexanoic acid —— C23H26N4O5S2
    6-[5-[(7-Methyl-2-morpholin-4-yl-4-oxopyrido[1,2-a]pyrimidin-3-yl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]hexanoic acid
    —— 2-(benzylsulfanyl)-8,9,13b,14-tetrahydro-6H-[1,2,4]triazolo[5'',1'':2',3']pyrimido[4',5':4,5]pyrido[2,1-a]isoquinolin-6-one —— C23H19N5OS
    2-(benzylsulfanyl)-8,9,13b,14-tetrahydro-6H-[1,2,4]triazolo[5'',1'':2',3']pyrimido[4',5':4,5]pyrido[2,1-a]isoquinolin-6-one
    —— 5-[[2-(1-Hydroxybutan-2-ylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-[(4-methylphenyl)methyl]-2-sulfanylidene-1,3-thiazolidin-4-one —— C25H26N4O3S2
    5-[[2-(1-Hydroxybutan-2-ylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-[(4-methylphenyl)methyl]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 2-Cyano-3-(9-methyl-2-morpholin-4-yl-4-oxopyrido[1,2-a]pyrimidin-3-yl)prop-2-enamide —— C17H17N5O3
    2-Cyano-3-(9-methyl-2-morpholin-4-yl-4-oxopyrido[1,2-a]pyrimidin-3-yl)prop-2-enamide
    —— 3-Benzyl-5-[[9-methyl-4-oxo-2-(prop-2-enylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C23H20N4O2S2
    3-Benzyl-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-[(4-Fluorophenyl)methyl]-5-[(4-oxo-2-thiomorpholin-4-ylpyrido[1,2-a]pyrimidin-3-yl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C23H19FN4O2S3
    3-[(4-Fluorophenyl)methyl]-5-[(4-oxo-2-thiomorpholin-4-ylpyrido[1,2-a]pyrimidin-3-yl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 1-[3-[(3-Ethyl-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]-9-methyl-4-oxopyrido[1,2-a]pyrimidin-2-yl]piperidine-4-carboxamide —— C21H23N5O3S2
    1-[3-[(3-Ethyl-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]-9-methyl-4-oxopyrido[1,2-a]pyrimidin-2-yl]piperidine-4-carboxamide
    —— 3-Cyclopentyl-5-[[2-(1-hydroxybutan-2-ylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C22H26N4O3S2
    3-Cyclopentyl-5-[[2-(1-hydroxybutan-2-ylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— (3R)-3-phenylpyrido[1,2-a]pyrimidine-2,4-dione —— C14H10N2O2
    (3R)-3-phenylpyrido[1,2-a]pyrimidine-2,4-dione
    —— 2-(4-Chlorophenyl)sulfonyl-3-(9-methyl-4-oxo-2-piperidin-1-ylpyrido[1,2-a]pyrimidin-3-yl)prop-2-enenitrile —— C23H21ClN4O3S
    2-(4-Chlorophenyl)sulfonyl-3-(9-methyl-4-oxo-2-piperidin-1-ylpyrido[1,2-a]pyrimidin-3-yl)prop-2-enenitrile
    —— 5-[[2-(2-Hydroxyethylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-(3-phenylpropyl)-2-sulfanylidene-1,3-thiazolidin-4-one —— C24H24N4O3S2
    5-[[2-(2-Hydroxyethylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-(3-phenylpropyl)-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 5-[[2-(2-Hydroxyethylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-[2-(4-methoxyphenyl)ethyl]-2-sulfanylidene-1,3-thiazolidin-4-one —— C24H24N4O4S2
    5-[[2-(2-Hydroxyethylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-[2-(4-methoxyphenyl)ethyl]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 6-oxo-8,9,13b,14-tetrahydro-6H-pyrazolo[5'',1'':2',3']pyrimido[4',5':4,5]pyrido[2,1-a]isoquinoline-3-carbonitrile —— C18H13N5O
    6-oxo-8,9,13b,14-tetrahydro-6H-pyrazolo[5'',1'':2',3']pyrimido[4',5':4,5]pyrido[2,1-a]isoquinoline-3-carbonitrile
    —— 5-[[2-(Dipropylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-[2-(4-methoxyphenyl)ethyl]-2-sulfanylidene-1,3-thiazolidin-4-one —— C27H30N4O3S2
    5-[[2-(Dipropylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-[2-(4-methoxyphenyl)ethyl]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 2-cyano-3-[2-(2,6-dimethylmorpholin-4-yl)-4-oxopyrido[1,2-a]pyrimidin-3-yl]-N-(4-ethoxyphenyl)prop-2-enamide —— C26H27N5O4
    2-cyano-3-[2-(2,6-dimethylmorpholin-4-yl)-4-oxopyrido[1,2-a]pyrimidin-3-yl]-N-(4-ethoxyphenyl)prop-2-enamide
    —— 1-[4-Oxo-3-[(4-oxo-3-propan-2-yl-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]pyrido[1,2-a]pyrimidin-2-yl]piperidine-4-carboxamide —— C21H23N5O3S2
    1-[4-Oxo-3-[(4-oxo-3-propan-2-yl-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]pyrido[1,2-a]pyrimidin-2-yl]piperidine-4-carboxamide
    —— 3-Cyclohexyl-5-[[9-methyl-2-(3-morpholin-4-ylpropylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C26H33N5O3S2
    3-Cyclohexyl-5-[[9-methyl-2-(3-morpholin-4-ylpropylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 1-[3-[(3-Butyl-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]-4-oxopyrido[1,2-a]pyrimidin-2-yl]piperidine-4-carboxamide —— C22H25N5O3S2
    1-[3-[(3-Butyl-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]-4-oxopyrido[1,2-a]pyrimidin-2-yl]piperidine-4-carboxamide
    —— 5-[[7-Methyl-2-(2-methylpropylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-propan-2-yl-2-sulfanylidene-1,3-thiazolidin-4-one —— C20H24N4O2S2
    5-[[7-Methyl-2-(2-methylpropylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-propan-2-yl-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 5-[[2-(3,5-Dimethylpiperidin-1-yl)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-(2-ethylhexyl)-2-sulfanylidene-1,3-thiazolidin-4-one —— C28H38N4O2S2
    5-[[2-(3,5-Dimethylpiperidin-1-yl)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-(2-ethylhexyl)-2-sulfanylidene-1,3-thiazolidin-4-one
    —— ethyl (2Z)-2-{[(4-tert-butylphenyl)carbonyl]imino}-1-(furan-2-ylmethyl)-10-methyl-5-oxo-1,5-dihydro-2H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxylate —— C31H30N4O5
    ethyl (2Z)-2-{[(4-tert-butylphenyl)carbonyl]imino}-1-(furan-2-ylmethyl)-10-methyl-5-oxo-1,5-dihydro-2H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxylate
    —— N~3~-(4-fluorobenzyl)-2-imino-10-methyl-1-octyl-5-oxo-1,5-dihydro-2H-dipyrido[1,2-a:2,3-d]pyrimidine-3-carboxamide —— C28H32FN5O2
    N~3~-(4-fluorobenzyl)-2-imino-10-methyl-1-octyl-5-oxo-1,5-dihydro-2H-dipyrido[1,2-a:2,3-d]pyrimidine-3-carboxamide
    —— 5-(4-chlorophenyl)-1,3-dimethyl-2,4-dioxo-2,3,4,5-tetrahydro-1H-indeno[2',1':5,6]pyrido[2,3-d]pyrimidin-6-yl propionate —— C25H20ClN3O4
    5-(4-chlorophenyl)-1,3-dimethyl-2,4-dioxo-2,3,4,5-tetrahydro-1H-indeno[2',1':5,6]pyrido[2,3-d]pyrimidin-6-yl propionate
    —— 1-[4-Oxo-3-[(4-oxo-3-prop-2-enyl-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]pyrido[1,2-a]pyrimidin-2-yl]piperidine-4-carboxamide —— C21H21N5O3S2
    1-[4-Oxo-3-[(4-oxo-3-prop-2-enyl-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]pyrido[1,2-a]pyrimidin-2-yl]piperidine-4-carboxamide
    —— 3-Dodecyl-5-[[7-methyl-2-(2-methylpropylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C29H42N4O2S2
    3-Dodecyl-5-[[7-methyl-2-(2-methylpropylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(butan-2-ylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C24H22N4O4S2
    3-(1,3-Benzodioxol-5-ylmethyl)-5-[[2-(butan-2-ylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 2-imino-1-[2-(4-methoxyphenyl)ethyl]-10-methyl-3-[(4-methylphenyl)sulfonyl]-1,2-dihydro-5H-dipyrido[1,2-a:2',3'-d]pyrimidin-5-one —— C28H26N4O4S
    2-imino-1-[2-(4-methoxyphenyl)ethyl]-10-methyl-3-[(4-methylphenyl)sulfonyl]-1,2-dihydro-5H-dipyrido[1,2-a:2',3'-d]pyrimidin-5-one
    —— 5-(Benzenesulfonyl)-7-[(4-fluorophenyl)methyl]-6-imino-1,7,9-triazatricyclo[8.4.0.0^{3,8}]tetradeca-3(8),4,9,11,13-pentaen-2-one —— C24H17FN4O3S
    5-(Benzenesulfonyl)-7-[(4-fluorophenyl)methyl]-6-imino-1,7,9-triazatricyclo[8.4.0.0^{3,8}]tetradeca-3(8),4,9,11,13-pentaen-2-one
    —— 3-[(4-Fluorophenyl)methyl]-5-[[9-methyl-2-(octylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C28H31FN4O2S2
    3-[(4-Fluorophenyl)methyl]-5-[[9-methyl-2-(octylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— Ethyl 1-(6-imino-7,11-dimethyl-2-oxo-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carbonyl)piperidine-4-carboxylate —— C22H25N5O4
    Ethyl 1-(6-imino-7,11-dimethyl-2-oxo-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carbonyl)piperidine-4-carboxylate
    —— 5-[[2-(3,5-Dimethylpiperidin-1-yl)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-octyl-2-sulfanylidene-1,3-thiazolidin-4-one —— C27H36N4O2S2
    5-[[2-(3,5-Dimethylpiperidin-1-yl)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-octyl-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 5-[[2-(3-Hydroxypropylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-[(4-methoxyphenyl)methyl]-2-sulfanylidene-1,3-thiazolidin-4-one —— C24H24N4O4S2
    5-[[2-(3-Hydroxypropylamino)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-[(4-methoxyphenyl)methyl]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 5-[[2-(3,4-dihydro-1H-isoquinolin-2-yl)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-(furan-2-ylmethyl)-2-sulfanylidene-1,3-thiazolidin-4-one —— C27H22N4O3S2
    5-[[2-(3,4-dihydro-1H-isoquinolin-2-yl)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-(furan-2-ylmethyl)-2-sulfanylidene-1,3-thiazolidin-4-one
    —— ethyl (2Z)-2-{[(3,5-dimethoxyphenyl)carbonyl]imino}-5-oxo-1-pentyl-1,5-dihydro-2H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxylate —— C28H30N4O6
    ethyl (2Z)-2-{[(3,5-dimethoxyphenyl)carbonyl]imino}-5-oxo-1-pentyl-1,5-dihydro-2H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxylate
    —— 3-[(4-Methoxyphenyl)methyl]-5-[[9-methyl-4-oxo-2-(3-propan-2-yloxypropylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C27H30N4O4S2
    3-[(4-Methoxyphenyl)methyl]-5-[[9-methyl-4-oxo-2-(3-propan-2-yloxypropylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-Methyl-5-[(9-methyl-4-oxo-2-thiomorpholin-4-ylpyrido[1,2-a]pyrimidin-3-yl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C18H18N4O2S3
    3-Methyl-5-[(9-methyl-4-oxo-2-thiomorpholin-4-ylpyrido[1,2-a]pyrimidin-3-yl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 3-[(4-bromophenyl)sulfonyl]-1-(furan-2-ylmethyl)-2-imino-10-methyl-1,2-dihydro-5H-dipyrido[1,2-a:2',3'-d]pyrimidin-5-one —— C23H17BrN4O4S
    3-[(4-bromophenyl)sulfonyl]-1-(furan-2-ylmethyl)-2-imino-10-methyl-1,2-dihydro-5H-dipyrido[1,2-a:2',3'-d]pyrimidin-5-one
    —— 3-Hexyl-5-[[4-oxo-2-(3-propan-2-yloxypropylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C24H32N4O3S2
    3-Hexyl-5-[[4-oxo-2-(3-propan-2-yloxypropylamino)pyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one