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    首页 分子通 按分子结构分类 有机化合物 木脂素、新木脂素和相关化合物

    木脂素、新木脂素和相关化合物

    下级分类

    中文名称 英文名称 CAS号 化学式 结构式图片
    —— (1S,8R,15R,19R)-4,11-ditert-butyl-17-phenyl-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2(7),3,5,9(14),10,12-hexaene-16,18-dione —— C32H33NO2
    (1S,8R,15R,19R)-4,11-ditert-butyl-17-phenyl-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2(7),3,5,9(14),10,12-hexaene-16,18-dione
    —— (1R,8R,9S,13S)-1,8-diphenyl-11,14-dioxatetracyclo[6.5.1.02,7.09,13]tetradeca-2,4,6-triene-10,12-dione —— C24H16O4
    (1R,8R,9S,13S)-1,8-diphenyl-11,14-dioxatetracyclo[6.5.1.02,7.09,13]tetradeca-2,4,6-triene-10,12-dione
    —— (1S,8S,9S,13S)-1,8-diphenyl-11,14-dioxatetracyclo[6.5.1.02,7.09,13]tetradeca-2,4,6-triene-10,12-dione —— C24H16O4
    (1S,8S,9S,13S)-1,8-diphenyl-11,14-dioxatetracyclo[6.5.1.02,7.09,13]tetradeca-2,4,6-triene-10,12-dione
    —— (1S,8R,15R,19R)-4,11-ditert-butyl-17-(2-nitrophenyl)-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2(7),3,5,9(14),10,12-hexaene-16,18-dione —— C32H32N2O4
    (1S,8R,15R,19R)-4,11-ditert-butyl-17-(2-nitrophenyl)-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2(7),3,5,9(14),10,12-hexaene-16,18-dione
    —— (2R,3R,4S,5S,6R)-2-[4-[(3S,3aR,6S,6aR)-3-(3,4-dimethoxyphenyl)-1,3,3a,4,6,6a-hexahydrofuro[3,4-c]furan-6-yl]-2-methoxyphenoxy]-6-(hydroxymethyl)oxane-3,4,5-triol —— C27H34O11
    (2R,3R,4S,5S,6R)-2-[4-[(3S,3aR,6S,6aR)-3-(3,4-dimethoxyphenyl)-1,3,3a,4,6,6a-hexahydrofuro[3,4-c]furan-6-yl]-2-methoxyphenoxy]-6-(hydroxymethyl)oxane-3,4,5-triol
    —— (1S,8R,15R,19R)-4,11-ditert-butyl-17-(3,4-dichlorophenyl)-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2(7),3,5,9(14),10,12-hexaene-16,18-dione —— C32H31Cl2NO2
    (1S,8R,15R,19R)-4,11-ditert-butyl-17-(3,4-dichlorophenyl)-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2(7),3,5,9(14),10,12-hexaene-16,18-dione
    —— (1S,8R,15R,19R)-4,11-ditert-butyl-17-(3-chlorophenyl)-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2(7),3,5,9(14),10,12-hexaene-16,18-dione —— C32H32ClNO2
    (1S,8R,15R,19R)-4,11-ditert-butyl-17-(3-chlorophenyl)-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2(7),3,5,9(14),10,12-hexaene-16,18-dione
    —— (8Z,8'Z)-8,8'-bis{[(2,3-dimethylphenyl)amino]methylidene}-1,1',6,6'-tetrahydroxy-3,3'-dimethyl-5,5'-di(propan-2-yl)-2,2'-binaphthalene-7,7'(8H,8'H)-dione —— C46H48N2O6
    (8Z,8'Z)-8,8'-bis{[(2,3-dimethylphenyl)amino]methylidene}-1,1',6,6'-tetrahydroxy-3,3'-dimethyl-5,5'-di(propan-2-yl)-2,2'-binaphthalene-7,7'(8H,8'H)-dione
    —— 2-[(Z,1S)-3-hydroxy-2-(4-nitrophenyl)sulfanyl-1,3-diphenylprop-2-enyl]propanedinitrile —— C24H17N3O3S
    2-[(Z,1S)-3-hydroxy-2-(4-nitrophenyl)sulfanyl-1,3-diphenylprop-2-enyl]propanedinitrile
    —— 2-[(Z,1S)-1,3-diphenylprop-2-enyl]-1,3-diphenylpropane-1,3-dione —— C30H24O2
    2-[(Z,1S)-1,3-diphenylprop-2-enyl]-1,3-diphenylpropane-1,3-dione
    —— 2-[(Z,1R)-1,3-diphenylprop-2-enyl]-1,3-diphenylpropane-1,3-dione —— C30H24O2
    2-[(Z,1R)-1,3-diphenylprop-2-enyl]-1,3-diphenylpropane-1,3-dione
    —— (4aR,4bS,8aR,8bS)-4a,4b-bis(4-methoxyphenyl)-2,3,4,5,6,7,8a,8b-octahydrobiphenylene-1,8-dione —— C26H28O4
    (4aR,4bS,8aR,8bS)-4a,4b-bis(4-methoxyphenyl)-2,3,4,5,6,7,8a,8b-octahydrobiphenylene-1,8-dione
    —— N-[(E,3S)-1-[2-(3-chloroanilino)-2-oxoethyl]sulfanyl-3-(2-chlorophenyl)-2-cyano-5-oxo-5-phenylpent-1-enyl]benzamide —— C33H25Cl2N3O3S
    N-[(E,3S)-1-[2-(3-chloroanilino)-2-oxoethyl]sulfanyl-3-(2-chlorophenyl)-2-cyano-5-oxo-5-phenylpent-1-enyl]benzamide
    —— N-[(E,3R)-1-[2-(3-chloroanilino)-2-oxoethyl]sulfanyl-3-(2-chlorophenyl)-2-cyano-5-oxo-5-phenylpent-1-enyl]benzamide —— C33H25Cl2N3O3S
    N-[(E,3R)-1-[2-(3-chloroanilino)-2-oxoethyl]sulfanyl-3-(2-chlorophenyl)-2-cyano-5-oxo-5-phenylpent-1-enyl]benzamide
    —— N-[(E,3R)-1-[2-(4-chloroanilino)-2-oxoethyl]sulfanyl-3-(2-chlorophenyl)-2-cyano-5-oxo-5-phenylpent-1-enyl]benzamide —— C33H25Cl2N3O3S
    N-[(E,3R)-1-[2-(4-chloroanilino)-2-oxoethyl]sulfanyl-3-(2-chlorophenyl)-2-cyano-5-oxo-5-phenylpent-1-enyl]benzamide
    —— (15R,19S)-17-[4-[2-(4-bromophenyl)-2-oxoethoxy]-2-methylphenyl]-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione —— C33H24BrNO4
    (15R,19S)-17-[4-[2-(4-bromophenyl)-2-oxoethoxy]-2-methylphenyl]-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione
    —— (15R,19R)-17-[4-[2-(4-bromophenyl)-2-oxoethoxy]-2-methylphenyl]-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione —— C33H24BrNO4
    (15R,19R)-17-[4-[2-(4-bromophenyl)-2-oxoethoxy]-2-methylphenyl]-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione
    —— (15S,19S)-17-[4-[2-(4-bromophenyl)-2-oxoethoxy]-2-methylphenyl]-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione —— C33H24BrNO4
    (15S,19S)-17-[4-[2-(4-bromophenyl)-2-oxoethoxy]-2-methylphenyl]-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione
    —— N-[(E,3S)-3-(2-chlorophenyl)-2-cyano-1-methylsulfanyl-5-oxo-5-phenylpent-1-enyl]benzamide —— C26H21ClN2O2S
    N-[(E,3S)-3-(2-chlorophenyl)-2-cyano-1-methylsulfanyl-5-oxo-5-phenylpent-1-enyl]benzamide
    —— N-[(E,3R)-3-(2-chlorophenyl)-2-cyano-1-methylsulfanyl-5-oxo-5-phenylpent-1-enyl]benzamide —— C26H21ClN2O2S
    N-[(E,3R)-3-(2-chlorophenyl)-2-cyano-1-methylsulfanyl-5-oxo-5-phenylpent-1-enyl]benzamide
    —— (15S,19R)-1,8-dibromo-17-[4-chloro-3-(trifluoromethyl)phenyl]-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione —— C25H13Br2ClF3NO2
    (15S,19R)-1,8-dibromo-17-[4-chloro-3-(trifluoromethyl)phenyl]-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione
    —— (15R,19R)-1,8-dibromo-17-[4-chloro-3-(trifluoromethyl)phenyl]-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione —— C25H13Br2ClF3NO2
    (15R,19R)-1,8-dibromo-17-[4-chloro-3-(trifluoromethyl)phenyl]-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione
    —— (15S,19S)-1,8-dibromo-17-[4-chloro-3-(trifluoromethyl)phenyl]-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione —— C25H13Br2ClF3NO2
    (15S,19S)-1,8-dibromo-17-[4-chloro-3-(trifluoromethyl)phenyl]-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione
    —— (2R,3S,5E)-5-hydroxyimino-2,3,5-triphenylpentanenitrile —— C23H20N2O
    (2R,3S,5E)-5-hydroxyimino-2,3,5-triphenylpentanenitrile
    —— (7E)-7-benzoyl-3-(3-chlorophenyl)-4,6-bis(4-chlorophenyl)-5-phenyl-3,4,5,6-tetrahydro-1H-azocin-2-one —— C38H28Cl3NO2
    (7E)-7-benzoyl-3-(3-chlorophenyl)-4,6-bis(4-chlorophenyl)-5-phenyl-3,4,5,6-tetrahydro-1H-azocin-2-one
    —— (3R)-3-benzoyl-1-phenylpentane-1,4-dione —— C18H16O3
    (3R)-3-benzoyl-1-phenylpentane-1,4-dione
    —— (1R,6S,16S)-6-[(1R,6R,16S)-6-hydroxy-17,17-dimethyl-6-pentacyclo[14.1.1.02,14.05,13.07,12]octadeca-2(14),3,5(13),7,9,11-hexaenyl]-17,17-dimethylpentacyclo[14.1.1.02,14.05,13.07,12]octadeca-2(14),3,5(13),7,9,11-hexaen-6-ol —— C40H38O2
    (1R,6S,16S)-6-[(1R,6R,16S)-6-hydroxy-17,17-dimethyl-6-pentacyclo[14.1.1.02,14.05,13.07,12]octadeca-2(14),3,5(13),7,9,11-hexaenyl]-17,17-dimethylpentacyclo[14.1.1.02,14.05,13.07,12]octadeca-2(14),3,5(13),7,9,11-hexaen-6-ol
    —— (1R,6S,16R)-6-[(1R,6R,16S)-6-hydroxy-17,17-dimethyl-6-pentacyclo[14.1.1.02,14.05,13.07,12]octadeca-2(14),3,5(13),7,9,11-hexaenyl]-17,17-dimethylpentacyclo[14.1.1.02,14.05,13.07,12]octadeca-2(14),3,5(13),7,9,11-hexaen-6-ol —— C40H38O2
    (1R,6S,16R)-6-[(1R,6R,16S)-6-hydroxy-17,17-dimethyl-6-pentacyclo[14.1.1.02,14.05,13.07,12]octadeca-2(14),3,5(13),7,9,11-hexaenyl]-17,17-dimethylpentacyclo[14.1.1.02,14.05,13.07,12]octadeca-2(14),3,5(13),7,9,11-hexaen-6-ol
    —— (2S,3S,4R,5S,6S)-2-[4-[(3S,3aR,6S,6aS)-3-(3,4-dimethoxyphenyl)-1,3,3a,4,6,6a-hexahydrofuro[3,4-c]furan-6-yl]-2-methoxyphenoxy]-6-(hydroxymethyl)oxane-3,4,5-triol —— C27H34O11
    (2S,3S,4R,5S,6S)-2-[4-[(3S,3aR,6S,6aS)-3-(3,4-dimethoxyphenyl)-1,3,3a,4,6,6a-hexahydrofuro[3,4-c]furan-6-yl]-2-methoxyphenoxy]-6-(hydroxymethyl)oxane-3,4,5-triol
    —— (2S,3S,4R,5S,6S)-2-[4-[(3S,3aR,6S,6aR)-3-(3,4-dimethoxyphenyl)-1,3,3a,4,6,6a-hexahydrofuro[3,4-c]furan-6-yl]-2-methoxyphenoxy]-6-(hydroxymethyl)oxane-3,4,5-triol —— C27H34O11
    (2S,3S,4R,5S,6S)-2-[4-[(3S,3aR,6S,6aR)-3-(3,4-dimethoxyphenyl)-1,3,3a,4,6,6a-hexahydrofuro[3,4-c]furan-6-yl]-2-methoxyphenoxy]-6-(hydroxymethyl)oxane-3,4,5-triol
    —— (2S,3S,4R,5S,6S)-2-[4-[(3R,3aR,6S,6aS)-3-(3,4-dimethoxyphenyl)-1,3,3a,4,6,6a-hexahydrofuro[3,4-c]furan-6-yl]-2-methoxyphenoxy]-6-(hydroxymethyl)oxane-3,4,5-triol —— C27H34O11
    (2S,3S,4R,5S,6S)-2-[4-[(3R,3aR,6S,6aS)-3-(3,4-dimethoxyphenyl)-1,3,3a,4,6,6a-hexahydrofuro[3,4-c]furan-6-yl]-2-methoxyphenoxy]-6-(hydroxymethyl)oxane-3,4,5-triol
    —— (1S,8R,15R,19R)-17-[4-(4-bromophenoxy)phenyl]-4,11-ditert-butyl-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2(7),3,5,9(14),10,12-hexaene-16,18-dione —— C38H36BrNO3
    (1S,8R,15R,19R)-17-[4-(4-bromophenoxy)phenyl]-4,11-ditert-butyl-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2(7),3,5,9(14),10,12-hexaene-16,18-dione
    —— (15S,19R)-1-[(2-methoxyphenyl)iminomethyl]-17-(2-nitrophenyl)-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione —— C32H23N3O5
    (15S,19R)-1-[(2-methoxyphenyl)iminomethyl]-17-(2-nitrophenyl)-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione
    —— (15S,19S)-1-[(2-methoxyphenyl)iminomethyl]-17-(2-nitrophenyl)-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione —— C32H23N3O5
    (15S,19S)-1-[(2-methoxyphenyl)iminomethyl]-17-(2-nitrophenyl)-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione
    —— (15R,19R)-1-[(2-methoxyphenyl)iminomethyl]-17-(2-nitrophenyl)-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione —— C32H23N3O5
    (15R,19R)-1-[(2-methoxyphenyl)iminomethyl]-17-(2-nitrophenyl)-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione
    —— (15R,19S)-1-[(2-methoxyphenyl)iminomethyl]-17-(2-nitrophenyl)-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione —— C32H23N3O5
    (15R,19S)-1-[(2-methoxyphenyl)iminomethyl]-17-(2-nitrophenyl)-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione
    —— (5Z)-5-[(E)-5-oxo-1,3,5-triphenylpent-2-enylidene]-2-piperidin-1-yl-1,3-thiazol-4-one —— C31H28N2O2S
    (5Z)-5-[(E)-5-oxo-1,3,5-triphenylpent-2-enylidene]-2-piperidin-1-yl-1,3-thiazol-4-one
    —— (E)-2-(1,3-diphenylallyl)-1,3-diphenylpropane-1,3-dione —— C30H24O2
    (E)-2-(1,3-diphenylallyl)-1,3-diphenylpropane-1,3-dione
    —— (E)-2-(1,3-diphenylallyl)-1,3-diphenylpropane-1,3-dione —— C30H24O2
    (E)-2-(1,3-diphenylallyl)-1,3-diphenylpropane-1,3-dione
    —— 1,5-diphenyl-3-<i>p</i>-tolyl-pent-2-ene-1,5-dione 102755-13-5 C24H20O2
    1,5-diphenyl-3-<i>p</i>-tolyl-pent-2-ene-1,5-dione
    —— N-[(Z)-[17-(2-chlorophenyl)-16,18-dioxo-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaen-1-yl]methylideneamino]-2-hydroxybenzamide —— C32H22ClN3O4
    N-[(Z)-[17-(2-chlorophenyl)-16,18-dioxo-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaen-1-yl]methylideneamino]-2-hydroxybenzamide
    —— (1R,6R,7S)-N-[(Z)-[(15S,19R)-17-(2-chlorophenyl)-16,18-dioxo-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaen-1-yl]methylideneamino]-1-methylbicyclo[4.1.0]heptane-7-carboxamide —— C34H30ClN3O3
    (1R,6R,7S)-N-[(Z)-[(15S,19R)-17-(2-chlorophenyl)-16,18-dioxo-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaen-1-yl]methylideneamino]-1-methylbicyclo[4.1.0]heptane-7-carboxamide
    —— (1S,6S,7S)-N-[(Z)-[(15S,19R)-17-(2-chlorophenyl)-16,18-dioxo-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaen-1-yl]methylideneamino]-1-methylbicyclo[4.1.0]heptane-7-carboxamide —— C34H30ClN3O3
    (1S,6S,7S)-N-[(Z)-[(15S,19R)-17-(2-chlorophenyl)-16,18-dioxo-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaen-1-yl]methylideneamino]-1-methylbicyclo[4.1.0]heptane-7-carboxamide
    —— (1R,6S,7S)-N-[(Z)-[(15S,19R)-17-(2-chlorophenyl)-16,18-dioxo-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaen-1-yl]methylideneamino]-1-methylbicyclo[4.1.0]heptane-7-carboxamide —— C34H30ClN3O3
    (1R,6S,7S)-N-[(Z)-[(15S,19R)-17-(2-chlorophenyl)-16,18-dioxo-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaen-1-yl]methylideneamino]-1-methylbicyclo[4.1.0]heptane-7-carboxamide
    —— (14S,27R)-22,32-dimethoxy-13,28-dimethyl-2,5,7,20-tetraoxa-13,28-diazaoctacyclo[25.5.3.216,19.13,10.121,25.04,8.030,34.014,39]nonatriaconta-1(32),3(39),4(8),9,16(38),17,19(37),21,23,25(36),30,33-dodecaene —— C37H38N2O6
    (14S,27R)-22,32-dimethoxy-13,28-dimethyl-2,5,7,20-tetraoxa-13,28-diazaoctacyclo[25.5.3.216,19.13,10.121,25.04,8.030,34.014,39]nonatriaconta-1(32),3(39),4(8),9,16(38),17,19(37),21,23,25(36),30,33-dodecaene
    —— (2S,3S,4R,5R,6S)-2-[4-[(3S,3aS,6R,6aS)-3-(3,4-dimethoxyphenyl)-1,3,3a,4,6,6a-hexahydrofuro[3,4-c]furan-6-yl]-3-methoxyphenoxy]-6-(hydroxymethyl)oxane-3,4,5-triol —— C27H34O11
    (2S,3S,4R,5R,6S)-2-[4-[(3S,3aS,6R,6aS)-3-(3,4-dimethoxyphenyl)-1,3,3a,4,6,6a-hexahydrofuro[3,4-c]furan-6-yl]-3-methoxyphenoxy]-6-(hydroxymethyl)oxane-3,4,5-triol
    —— ethyl (2S,3S)-3-(4-methylphenyl)-2-nitro-5-oxo-5-phenylpentanoate —— C20H21NO5
    ethyl (2S,3S)-3-(4-methylphenyl)-2-nitro-5-oxo-5-phenylpentanoate
    —— ethyl (2R,3R)-3-(4-methylphenyl)-2-nitro-5-oxo-5-phenylpentanoate —— C20H21NO5
    ethyl (2R,3R)-3-(4-methylphenyl)-2-nitro-5-oxo-5-phenylpentanoate
    —— (2R,3S,4R,5R,6S)-2-[4-[(3S,3aS,6R,6aS)-3-(3,4-dimethoxyphenyl)-1,3,3a,4,6,6a-hexahydrofuro[3,4-c]furan-6-yl]-3-methoxyphenoxy]-6-(hydroxymethyl)oxane-3,4,5-triol —— C27H34O11
    (2R,3S,4R,5R,6S)-2-[4-[(3S,3aS,6R,6aS)-3-(3,4-dimethoxyphenyl)-1,3,3a,4,6,6a-hexahydrofuro[3,4-c]furan-6-yl]-3-methoxyphenoxy]-6-(hydroxymethyl)oxane-3,4,5-triol
    —— ethyl (2R,3S)-3-(4-methylphenyl)-2-nitro-5-oxo-5-phenylpentanoate —— C20H21NO5
    ethyl (2R,3S)-3-(4-methylphenyl)-2-nitro-5-oxo-5-phenylpentanoate