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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-{(Z)-[3-(butan-2-yl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-7-methyl-2-[(tetrahydrofuran-2-ylmethyl)amino]-4H-pyrido[1,2-a]pyrimidin-4-one —— C22H26N4O3S2
    3-{(Z)-[3-(butan-2-yl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-7-methyl-2-[(tetrahydrofuran-2-ylmethyl)amino]-4H-pyrido[1,2-a]pyrimidin-4-one
    —— 4-[(2Z)-2-[(9-methyl-4-oxo-2-pyrrolidin-1-ylpyrido[1,2-a]pyrimidin-3-yl)methylidene]hydrazinyl]benzoic acid —— C21H21N5O3
    4-[(2Z)-2-[(9-methyl-4-oxo-2-pyrrolidin-1-ylpyrido[1,2-a]pyrimidin-3-yl)methylidene]hydrazinyl]benzoic acid
    —— 6-imino-N-[(4-methylphenyl)methyl]-2-oxo-7-[[(2S)-oxolan-2-yl]methyl]-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carboxamide —— C25H25N5O3
    6-imino-N-[(4-methylphenyl)methyl]-2-oxo-7-[[(2S)-oxolan-2-yl]methyl]-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carboxamide
    —— N-[(4-fluorophenyl)methyl]-6-imino-2-oxo-7-[[(2R)-oxolan-2-yl]methyl]-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carboxamide —— C24H22FN5O3
    N-[(4-fluorophenyl)methyl]-6-imino-2-oxo-7-[[(2R)-oxolan-2-yl]methyl]-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carboxamide
    —— N-[(4-fluorophenyl)methyl]-6-imino-2-oxo-7-[[(2S)-oxolan-2-yl]methyl]-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carboxamide —— C24H22FN5O3
    N-[(4-fluorophenyl)methyl]-6-imino-2-oxo-7-[[(2S)-oxolan-2-yl]methyl]-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carboxamide
    —— 6-imino-7-(3-methoxypropyl)-2-oxo-N-[[(2S)-oxolan-2-yl]methyl]-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carboxamide —— C21H25N5O4
    6-imino-7-(3-methoxypropyl)-2-oxo-N-[[(2S)-oxolan-2-yl]methyl]-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carboxamide
    —— 6-imino-7-(3-methoxypropyl)-2-oxo-N-[[(2R)-oxolan-2-yl]methyl]-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carboxamide —— C21H25N5O4
    6-imino-7-(3-methoxypropyl)-2-oxo-N-[[(2R)-oxolan-2-yl]methyl]-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carboxamide
    —— 2-(2,6-dimethylmorpholin-4-yl)-9-methyl-3-{(Z)-[4-oxo-3-(prop-2-en-1-yl)-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-4H-pyrido[1,2-a]pyrimidin-4-one —— C22H24N4O3S2
    2-(2,6-dimethylmorpholin-4-yl)-9-methyl-3-{(Z)-[4-oxo-3-(prop-2-en-1-yl)-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-4H-pyrido[1,2-a]pyrimidin-4-one
    —— 2-[(3-hydroxypropyl)amino]-3-{(Z)-[4-oxo-3-(3-phenylpropyl)-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-4H-pyrido[1,2-a]pyrimidin-4-one —— C24H24N4O3S2
    2-[(3-hydroxypropyl)amino]-3-{(Z)-[4-oxo-3-(3-phenylpropyl)-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-4H-pyrido[1,2-a]pyrimidin-4-one
    —— (5E)-5-[[2-(furan-2-ylmethylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-octyl-2-sulfanylidene-1,3-thiazolidin-4-one —— C26H30N4O3S2
    (5E)-5-[[2-(furan-2-ylmethylamino)-7-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-3-octyl-2-sulfanylidene-1,3-thiazolidin-4-one
    —— ethyl 1-{3-[(1E)-2-cyano-3-(ethylamino)-3-oxoprop-1-en-1-yl]-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-2-yl}piperidine-3-carboxylate —— C23H27N5O4
    ethyl 1-{3-[(1E)-2-cyano-3-(ethylamino)-3-oxoprop-1-en-1-yl]-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-2-yl}piperidine-3-carboxylate
    —— 2-(2,6-dimethylmorpholin-4-yl)-3-{(Z)-[3-(4-methoxybenzyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-4H-pyrido[1,2-a]pyrimidin-4-one —— C26H26N4O4S2
    2-(2,6-dimethylmorpholin-4-yl)-3-{(Z)-[3-(4-methoxybenzyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-4H-pyrido[1,2-a]pyrimidin-4-one
    —— 3-{(Z)-[3-(2-methoxyethyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-2-{[3-(propan-2-yloxy)propyl]amino}-4H-pyrido[1,2-a]pyrimidin-4-one —— C21H26N4O4S2
    3-{(Z)-[3-(2-methoxyethyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-2-{[3-(propan-2-yloxy)propyl]amino}-4H-pyrido[1,2-a]pyrimidin-4-one
    —— 6-[(5Z)-5-({9-Methyl-2-[(4-morpholinylmethyl)amino]-4-oxo-4H-pyrido[1,2-A]pyrimidin-3-YL}methylene)-4-oxo-2-thioxo-1,3-thiazolidin-3-YL]hexanoic acid —— C24H29N5O5S2
    6-[(5Z)-5-({9-Methyl-2-[(4-morpholinylmethyl)amino]-4-oxo-4H-pyrido[1,2-A]pyrimidin-3-YL}methylene)-4-oxo-2-thioxo-1,3-thiazolidin-3-YL]hexanoic acid
    —— 2-[(4-methoxybenzyl)amino]-3-[(Z)-(3-methyl-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]-4H-pyrido[1,2-a]pyrimidin-4-one —— C21H18N4O3S2
    2-[(4-methoxybenzyl)amino]-3-[(Z)-(3-methyl-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]-4H-pyrido[1,2-a]pyrimidin-4-one
    —— (Z)-3-allyl-5-((2-((1-hydroxybutan-2-yl)amino)-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)methylene)-2-thioxothiazolidin-4-one —— C20H22N4O3S2
    (Z)-3-allyl-5-((2-((1-hydroxybutan-2-yl)amino)-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)methylene)-2-thioxothiazolidin-4-one
    —— 3-[(Z)-(3-allyl-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]-2-[(4-methoxybenzyl)amino]-7-methyl-4H-pyrido[1,2-a]pyrimidin-4-one —— C24H22N4O3S2
    3-[(Z)-(3-allyl-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]-2-[(4-methoxybenzyl)amino]-7-methyl-4H-pyrido[1,2-a]pyrimidin-4-one
    —— 3-{(Z)-[3-(butan-2-yl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-2-[(3-methoxypropyl)amino]-7-methyl-4H-pyrido[1,2-a]pyrimidin-4-one —— C21H26N4O3S2
    3-{(Z)-[3-(butan-2-yl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-2-[(3-methoxypropyl)amino]-7-methyl-4H-pyrido[1,2-a]pyrimidin-4-one
    —— 2-[(2-methoxyethyl)amino]-3-{(Z)-[3-(4-methylbenzyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-4H-pyrido[1,2-a]pyrimidin-4-one —— C23H22N4O3S2
    2-[(2-methoxyethyl)amino]-3-{(Z)-[3-(4-methylbenzyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-4H-pyrido[1,2-a]pyrimidin-4-one
    —— 7-amino-N'-[(Z)-cyclohex-3-en-1-ylmethylidene]-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine-6-carbohydrazide —— C17H20N6O3
    7-amino-N'-[(Z)-cyclohex-3-en-1-ylmethylidene]-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine-6-carbohydrazide
    —— 3-{(Z)-[3-(4-Methylbenzyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-2-[(tetrahydro-2-furanylmethyl)amino]-4H-pyrido[1,2-A]pyrimidin-4-one —— C25H24N4O3S2
    3-{(Z)-[3-(4-Methylbenzyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-2-[(tetrahydro-2-furanylmethyl)amino]-4H-pyrido[1,2-A]pyrimidin-4-one
    —— 2-hydroxy-N-[(Z)-(4-oxo-2-piperidin-1-ylpyrido[1,2-a]pyrimidin-3-yl)methylideneamino]benzamide —— C21H21N5O3
    2-hydroxy-N-[(Z)-(4-oxo-2-piperidin-1-ylpyrido[1,2-a]pyrimidin-3-yl)methylideneamino]benzamide
    —— (3S)-2,4-dioxopyrido[1,2-a]pyrimidine-3-carbaldehyde —— C9H6N2O3
    (3S)-2,4-dioxopyrido[1,2-a]pyrimidine-3-carbaldehyde
    —— (3R)-2,4-dioxopyrido[1,2-a]pyrimidine-3-carbaldehyde —— C9H6N2O3
    (3R)-2,4-dioxopyrido[1,2-a]pyrimidine-3-carbaldehyde
    —— (5Z)-3-ethyl-5-{[2-(ethylamino)-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl]methylidene}-1,3-thiazolidine-2,4-dione —— C16H16N4O3S
    (5Z)-3-ethyl-5-{[2-(ethylamino)-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl]methylidene}-1,3-thiazolidine-2,4-dione
    —— 6-imino-11-methyl-2-oxo-7-[[(2S)-oxolan-2-yl]methyl]-N-prop-2-enyl-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carboxamide —— C21H23N5O3
    6-imino-11-methyl-2-oxo-7-[[(2S)-oxolan-2-yl]methyl]-N-prop-2-enyl-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carboxamide
    —— 3-{(Z)-[3-(4-methoxybenzyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-9-methyl-2-(octylamino)-4H-pyrido[1,2-a]pyrimidin-4-one —— C29H34N4O3S2
    3-{(Z)-[3-(4-methoxybenzyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-9-methyl-2-(octylamino)-4H-pyrido[1,2-a]pyrimidin-4-one
    —— (3R,4aR)-3-(2-chloroethyl)-2-methyl-3,4a-dihydro-1H-pyrido[1,2-c]pyrimidin-4-one —— C11H15ClN2O
    (3R,4aR)-3-(2-chloroethyl)-2-methyl-3,4a-dihydro-1H-pyrido[1,2-c]pyrimidin-4-one
    —— ethyl 1-(4-oxo-3-{(Z)-[4-oxo-3-(2-phenylethyl)-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-4H-pyrido[1,2-a]pyrimidin-2-yl)piperidine-4-carboxylate —— C28H28N4O4S2
    ethyl 1-(4-oxo-3-{(Z)-[4-oxo-3-(2-phenylethyl)-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-4H-pyrido[1,2-a]pyrimidin-2-yl)piperidine-4-carboxylate
    —— 2-[(1,3-benzodioxol-5-ylmethyl)amino]-7-methyl-3-{(Z)-[4-oxo-3-(2-phenylethyl)-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-4H-pyrido[1,2-a]pyrimidin-4-one —— C29H24N4O4S2
    2-[(1,3-benzodioxol-5-ylmethyl)amino]-7-methyl-3-{(Z)-[4-oxo-3-(2-phenylethyl)-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-4H-pyrido[1,2-a]pyrimidin-4-one
    —— 3-{(Z)-[3-(1,1-dioxidotetrahydrothiophen-3-yl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-2-(dipropylamino)-9-methyl-4H-pyrido[1,2-a]pyrimidin-4-one —— C23H28N4O4S3
    3-{(Z)-[3-(1,1-dioxidotetrahydrothiophen-3-yl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-2-(dipropylamino)-9-methyl-4H-pyrido[1,2-a]pyrimidin-4-one
    —— 3-[(Z)-{3-[2-(4-methoxyphenyl)ethyl]-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene}methyl]-2-[(tetrahydrofuran-2-ylmethyl)amino]-4H-pyrido[1,2-a]pyrimidin-4-one —— C26H26N4O4S2
    3-[(Z)-{3-[2-(4-methoxyphenyl)ethyl]-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene}methyl]-2-[(tetrahydrofuran-2-ylmethyl)amino]-4H-pyrido[1,2-a]pyrimidin-4-one
    —— 1-(9-methyl-4-oxo-3-{(Z)-[4-oxo-3-(1-phenylethyl)-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-4H-pyrido[1,2-a]pyrimidin-2-yl)piperidine-4-carboxamide —— C27H27N5O3S2
    1-(9-methyl-4-oxo-3-{(Z)-[4-oxo-3-(1-phenylethyl)-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-4H-pyrido[1,2-a]pyrimidin-2-yl)piperidine-4-carboxamide
    —— (E)-2-cyano-3-[2-(2,6-dimethylmorpholin-4-yl)-4-oxopyrido[1,2-a]pyrimidin-3-yl]-N-prop-2-enylprop-2-enamide —— C21H23N5O3
    (E)-2-cyano-3-[2-(2,6-dimethylmorpholin-4-yl)-4-oxopyrido[1,2-a]pyrimidin-3-yl]-N-prop-2-enylprop-2-enamide
    —— (2E)-2-cyano-3-[2-(2,6-dimethylmorpholin-4-yl)-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl]-N-(2-methoxyethyl)prop-2-enamide —— C22H27N5O4
    (2E)-2-cyano-3-[2-(2,6-dimethylmorpholin-4-yl)-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl]-N-(2-methoxyethyl)prop-2-enamide
    —— 10-[(2Z)-2-[(2,4-dichlorophenyl)methoxyimino]ethyl]-2,3,7,11-tetrazatricyclo[7.4.0.02,6]trideca-1(9),3,5,7,10,12-hexaene-5-carbonitrile —— C19H12Cl2N6O
    10-[(2Z)-2-[(2,4-dichlorophenyl)methoxyimino]ethyl]-2,3,7,11-tetrazatricyclo[7.4.0.02,6]trideca-1(9),3,5,7,10,12-hexaene-5-carbonitrile
    —— methyl 4-[(6E)-6-(3H-1,3-benzothiazol-2-ylidene)-1-benzyl-3-methyl-2,4-dioxo-7-phenyl-5H-pyrido[2,3-d]pyrimidin-5-yl]benzoate —— C36H28N4O4S
    methyl 4-[(6E)-6-(3H-1,3-benzothiazol-2-ylidene)-1-benzyl-3-methyl-2,4-dioxo-7-phenyl-5H-pyrido[2,3-d]pyrimidin-5-yl]benzoate
    —— 3-[(Z)-(3-sec-butyl-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]-9-methyl-2-[(4-methylbenzyl)amino]-4H-pyrido[1,2-a]pyrimidin-4-one —— C25H26N4O2S2
    3-[(Z)-(3-sec-butyl-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]-9-methyl-2-[(4-methylbenzyl)amino]-4H-pyrido[1,2-a]pyrimidin-4-one
    —— 3-[(Z)-(3-isopropyl-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]-2-[(4-methoxybenzyl)amino]-7-methyl-4H-pyrido[1,2-a]pyrimidin-4-one —— C24H24N4O3S2
    3-[(Z)-(3-isopropyl-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]-2-[(4-methoxybenzyl)amino]-7-methyl-4H-pyrido[1,2-a]pyrimidin-4-one
    —— (2E)-2-cyano-3-[2-(2,6-dimethylmorpholin-4-yl)-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl]prop-2-enamide —— C19H21N5O3
    (2E)-2-cyano-3-[2-(2,6-dimethylmorpholin-4-yl)-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl]prop-2-enamide
    —— 3-{(Z)-[3-(1,3-benzodioxol-5-ylmethyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-2-[(2-hydroxyethyl)amino]-7-methyl-4H-pyrido[1,2-a]pyrimidin-4-one —— C23H20N4O5S2
    3-{(Z)-[3-(1,3-benzodioxol-5-ylmethyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-2-[(2-hydroxyethyl)amino]-7-methyl-4H-pyrido[1,2-a]pyrimidin-4-one
    —— 2-(3,5-dimethylpiperidin-1-yl)-9-methyl-3-[(Z)-(4-oxo-3-pentyl-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]-4H-pyrido[1,2-a]pyrimidin-4-one —— C25H32N4O2S2
    2-(3,5-dimethylpiperidin-1-yl)-9-methyl-3-[(Z)-(4-oxo-3-pentyl-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]-4H-pyrido[1,2-a]pyrimidin-4-one
    —— (2E)-2-cyano-3-[2-(2,6-dimethylmorpholin-4-yl)-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl]-N-(2-phenylethyl)prop-2-enamide —— C27H29N5O3
    (2E)-2-cyano-3-[2-(2,6-dimethylmorpholin-4-yl)-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl]-N-(2-phenylethyl)prop-2-enamide
    —— 3-{(Z)-[3-(2-ethylhexyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-2-{[3-(1H-imidazol-1-yl)propyl]amino}-9-methyl-4H-pyrido[1,2-a]pyrimidin-4-one —— C27H34N6O2S2
    3-{(Z)-[3-(2-ethylhexyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-2-{[3-(1H-imidazol-1-yl)propyl]amino}-9-methyl-4H-pyrido[1,2-a]pyrimidin-4-one
    —— (5E)-3-heptyl-5-[[7-methyl-2-(2-methylpropylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one —— C24H32N4O2S2
    (5E)-3-heptyl-5-[[7-methyl-2-(2-methylpropylamino)-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one
    —— (2E)-2-cyano-3-[2-(2,6-dimethylmorpholin-4-yl)-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl]-N-methylprop-2-enamide —— C19H21N5O3
    (2E)-2-cyano-3-[2-(2,6-dimethylmorpholin-4-yl)-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl]-N-methylprop-2-enamide
    —— (2R,4R)-4-ethoxy-2-propyl-3,4-dihydro-2H-pyrido[1,2-a]pyrimidine —— C13H20N2O
    (2R,4R)-4-ethoxy-2-propyl-3,4-dihydro-2H-pyrido[1,2-a]pyrimidine
    —— (4R)-4-ethoxy-6,8-dimethyl-3,4-dihydro-2H-pyrido[1,2-a]pyrimidine —— C12H18N2O
    (4R)-4-ethoxy-6,8-dimethyl-3,4-dihydro-2H-pyrido[1,2-a]pyrimidine
    —— (4S)-4-ethoxy-6,8-dimethyl-3,4-dihydro-2H-pyrido[1,2-a]pyrimidine —— C12H18N2O
    (4S)-4-ethoxy-6,8-dimethyl-3,4-dihydro-2H-pyrido[1,2-a]pyrimidine
    —— (2S,4R)-4-ethoxy-2-propyl-3,4-dihydro-2H-pyrido[1,2-a]pyrimidine —— C13H20N2O
    (2S,4R)-4-ethoxy-2-propyl-3,4-dihydro-2H-pyrido[1,2-a]pyrimidine