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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 吡咯烷类

    吡咯烷类

    中文名称 英文名称 CAS号 化学式 结构式图片
    —— (4E)-1-[5-[(2-chlorophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-[3-(3-methylbutoxy)phenyl]pyrrolidine-2,3-dione —— C33H32ClN3O5S2
    (4E)-1-[5-[(2-chlorophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-[3-(3-methylbutoxy)phenyl]pyrrolidine-2,3-dione
    —— (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-ethoxy-4-propoxyphenyl)-1-(furan-2-ylmethyl)pyrrolidine-2,3-dione —— C29H31NO7
    (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-ethoxy-4-propoxyphenyl)-1-(furan-2-ylmethyl)pyrrolidine-2,3-dione
    —— (4E)-4-[(4-butoxy-2-methylphenyl)-hydroxymethylidene]-1-[2-(diethylamino)ethyl]-5-(4-pentoxyphenyl)pyrrolidine-2,3-dione —— C33H46N2O5
    (4E)-4-[(4-butoxy-2-methylphenyl)-hydroxymethylidene]-1-[2-(diethylamino)ethyl]-5-(4-pentoxyphenyl)pyrrolidine-2,3-dione
    —— (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-1-(3-morpholin-4-ylpropyl)-5-(3-pentoxyphenyl)pyrrolidine-2,3-dione —— C31H40N2O6
    (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-1-(3-morpholin-4-ylpropyl)-5-(3-pentoxyphenyl)pyrrolidine-2,3-dione
    —— (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-5-(4-fluorophenyl)-4-[hydroxy-(4-methylphenyl)methylidene]pyrrolidine-2,3-dione —— C25H16ClFN2O3S
    (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-5-(4-fluorophenyl)-4-[hydroxy-(4-methylphenyl)methylidene]pyrrolidine-2,3-dione
    —— (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-ethoxy-4-propoxyphenyl)-1-(3-morpholin-4-ylpropyl)pyrrolidine-2,3-dione —— C31H40N2O7
    (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-ethoxy-4-propoxyphenyl)-1-(3-morpholin-4-ylpropyl)pyrrolidine-2,3-dione
    —— (4E)-5-(3-bromo-4-hydroxy-5-methoxyphenyl)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-chlorophenyl)-hydroxymethylidene]pyrrolidine-2,3-dione —— C25H15BrCl2N2O5S
    (4E)-5-(3-bromo-4-hydroxy-5-methoxyphenyl)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-chlorophenyl)-hydroxymethylidene]pyrrolidine-2,3-dione
    —— (4E)-1-[2-(diethylamino)ethyl]-4-[hydroxy-(4-methoxy-2-methylphenyl)methylidene]-5-(4-pentoxyphenyl)pyrrolidine-2,3-dione —— C30H40N2O5
    (4E)-1-[2-(diethylamino)ethyl]-4-[hydroxy-(4-methoxy-2-methylphenyl)methylidene]-5-(4-pentoxyphenyl)pyrrolidine-2,3-dione
    —— (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-1-(6-methoxy-1,3-benzothiazol-2-yl)-5-[3-(3-methylbutoxy)phenyl]pyrrolidine-2,3-dione —— C32H32N2O6S
    (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-1-(6-methoxy-1,3-benzothiazol-2-yl)-5-[3-(3-methylbutoxy)phenyl]pyrrolidine-2,3-dione
    —— (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-ethoxy-4-prop-2-enoxyphenyl)-1-[5-(naphthalen-1-ylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]pyrrolidine-2,3-dione —— C37H33N3O6S2
    (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-ethoxy-4-prop-2-enoxyphenyl)-1-[5-(naphthalen-1-ylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]pyrrolidine-2,3-dione
    —— (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-ethoxy-4-propoxyphenyl)-1-(2-morpholin-4-ylethyl)pyrrolidine-2,3-dione —— C30H38N2O7
    (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-ethoxy-4-propoxyphenyl)-1-(2-morpholin-4-ylethyl)pyrrolidine-2,3-dione
    —— (4E)-5-(4-tert-butylphenyl)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[hydroxy-(4-methylphenyl)methylidene]pyrrolidine-2,3-dione —— C29H25ClN2O3S
    (4E)-5-(4-tert-butylphenyl)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[hydroxy-(4-methylphenyl)methylidene]pyrrolidine-2,3-dione
    —— (4E)-1-[5-[(2,4-dichlorophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-[3-(3-methylbutoxy)phenyl]pyrrolidine-2,3-dione —— C33H31Cl2N3O5S2
    (4E)-1-[5-[(2,4-dichlorophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-[3-(3-methylbutoxy)phenyl]pyrrolidine-2,3-dione
    —— (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-chlorophenyl)-hydroxymethylidene]-5-(4-ethoxy-3-methoxyphenyl)pyrrolidine-2,3-dione —— C27H20Cl2N2O5S
    (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-chlorophenyl)-hydroxymethylidene]-5-(4-ethoxy-3-methoxyphenyl)pyrrolidine-2,3-dione
    —— (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-1-(6-methyl-1,3-benzothiazol-2-yl)-5-(3-pentoxyphenyl)pyrrolidine-2,3-dione —— C32H32N2O5S
    (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-1-(6-methyl-1,3-benzothiazol-2-yl)-5-(3-pentoxyphenyl)pyrrolidine-2,3-dione
    —— (4E)-5-(3,4-diethoxyphenyl)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-1-[5-[(4-methylphenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]pyrrolidine-2,3-dione —— C33H33N3O6S2
    (4E)-5-(3,4-diethoxyphenyl)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-1-[5-[(4-methylphenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]pyrrolidine-2,3-dione
    —— (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[hydroxy-(4-methylphenyl)methylidene]-5-(3-methoxy-4-pentoxyphenyl)pyrrolidine-2,3-dione —— C31H29ClN2O5S
    (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[hydroxy-(4-methylphenyl)methylidene]-5-(3-methoxy-4-pentoxyphenyl)pyrrolidine-2,3-dione
    —— (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-fluorophenyl)-hydroxymethylidene]-5-(3-nitrophenyl)pyrrolidine-2,3-dione —— C24H13ClFN3O5S
    (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-fluorophenyl)-hydroxymethylidene]-5-(3-nitrophenyl)pyrrolidine-2,3-dione
    —— (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-5-(3-chlorophenyl)-4-[hydroxy-(4-methylphenyl)methylidene]pyrrolidine-2,3-dione —— C25H16Cl2N2O3S
    (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-5-(3-chlorophenyl)-4-[hydroxy-(4-methylphenyl)methylidene]pyrrolidine-2,3-dione
    —— (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-chlorophenyl)-hydroxymethylidene]-5-(3-nitrophenyl)pyrrolidine-2,3-dione —— C24H13Cl2N3O5S
    (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-chlorophenyl)-hydroxymethylidene]-5-(3-nitrophenyl)pyrrolidine-2,3-dione
    —— (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-ethoxy-4-prop-2-enoxyphenyl)-1-(3-morpholin-4-ylpropyl)pyrrolidine-2,3-dione —— C31H38N2O7
    (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-ethoxy-4-prop-2-enoxyphenyl)-1-(3-morpholin-4-ylpropyl)pyrrolidine-2,3-dione
    —— (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-ethoxy-4-phenylmethoxyphenyl)-1-(pyridin-4-ylmethyl)pyrrolidine-2,3-dione —— C34H32N2O6
    (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-ethoxy-4-phenylmethoxyphenyl)-1-(pyridin-4-ylmethyl)pyrrolidine-2,3-dione
    —— (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-ethoxy-4-phenylmethoxyphenyl)-1-(2-methoxyethyl)pyrrolidine-2,3-dione —— C31H33NO7
    (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-ethoxy-4-phenylmethoxyphenyl)-1-(2-methoxyethyl)pyrrolidine-2,3-dione
    —— (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-5-(2-fluorophenyl)-4-[hydroxy-(4-methylphenyl)methylidene]pyrrolidine-2,3-dione —— C25H16ClFN2O3S
    (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-5-(2-fluorophenyl)-4-[hydroxy-(4-methylphenyl)methylidene]pyrrolidine-2,3-dione
    —— (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-fluorophenyl)-hydroxymethylidene]-5-(3-methoxy-4-pentoxyphenyl)pyrrolidine-2,3-dione —— C30H26ClFN2O5S
    (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-fluorophenyl)-hydroxymethylidene]-5-(3-methoxy-4-pentoxyphenyl)pyrrolidine-2,3-dione
    —— (4E)-5-(3,4-diethoxyphenyl)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-1-[5-(naphthalen-1-ylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]pyrrolidine-2,3-dione —— C36H33N3O6S2
    (4E)-5-(3,4-diethoxyphenyl)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-1-[5-(naphthalen-1-ylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]pyrrolidine-2,3-dione
    —— (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-5-(4-ethoxy-3-methoxyphenyl)-4-[hydroxy-(4-methylphenyl)methylidene]pyrrolidine-2,3-dione —— C28H23ClN2O5S
    (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-5-(4-ethoxy-3-methoxyphenyl)-4-[hydroxy-(4-methylphenyl)methylidene]pyrrolidine-2,3-dione
    —— (4E)-1-[2-(diethylamino)ethyl]-4-[(4-ethoxy-3-methylphenyl)-hydroxymethylidene]-5-(3-methoxy-4-pentoxyphenyl)pyrrolidine-2,3-dione —— C32H44N2O6
    (4E)-1-[2-(diethylamino)ethyl]-4-[(4-ethoxy-3-methylphenyl)-hydroxymethylidene]-5-(3-methoxy-4-pentoxyphenyl)pyrrolidine-2,3-dione
    —— (4E)-1-[5-[(4-chlorophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-phenylmethoxyphenyl)pyrrolidine-2,3-dione —— C35H28ClN3O5S2
    (4E)-1-[5-[(4-chlorophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-phenylmethoxyphenyl)pyrrolidine-2,3-dione
    —— (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-chlorophenyl)-hydroxymethylidene]-5-(2-fluorophenyl)pyrrolidine-2,3-dione —— C24H13Cl2FN2O3S
    (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-chlorophenyl)-hydroxymethylidene]-5-(2-fluorophenyl)pyrrolidine-2,3-dione
    —— (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-chlorophenyl)-hydroxymethylidene]-5-[3-methoxy-4-(3-methylbutoxy)phenyl]pyrrolidine-2,3-dione —— C30H26Cl2N2O5S
    (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-chlorophenyl)-hydroxymethylidene]-5-[3-methoxy-4-(3-methylbutoxy)phenyl]pyrrolidine-2,3-dione
    —— (4E)-1-[2-(diethylamino)ethyl]-4-[hydroxy-[2-methyl-4-(2-methylpropoxy)phenyl]methylidene]-5-(3-methoxy-4-pentoxyphenyl)pyrrolidine-2,3-dione —— C34H48N2O6
    (4E)-1-[2-(diethylamino)ethyl]-4-[hydroxy-[2-methyl-4-(2-methylpropoxy)phenyl]methylidene]-5-(3-methoxy-4-pentoxyphenyl)pyrrolidine-2,3-dione
    —— (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-fluorophenyl)-hydroxymethylidene]-5-(3-methoxyphenyl)pyrrolidine-2,3-dione —— C25H16ClFN2O4S
    (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-fluorophenyl)-hydroxymethylidene]-5-(3-methoxyphenyl)pyrrolidine-2,3-dione
    —— (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-1-[5-[(4-fluorophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-5-[3-(3-methylbutoxy)phenyl]pyrrolidine-2,3-dione —— C33H32FN3O5S2
    (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-1-[5-[(4-fluorophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-5-[3-(3-methylbutoxy)phenyl]pyrrolidine-2,3-dione
    —— prop-2-enyl 2-[(3E)-3-[(4-ethoxyphenyl)-hydroxymethylidene]-2-(3-ethoxy-4-propoxyphenyl)-4,5-dioxopyrrolidin-1-yl]-4-methyl-1,3-thiazole-5-carboxylate —— C32H34N2O8S
    prop-2-enyl 2-[(3E)-3-[(4-ethoxyphenyl)-hydroxymethylidene]-2-(3-ethoxy-4-propoxyphenyl)-4,5-dioxopyrrolidin-1-yl]-4-methyl-1,3-thiazole-5-carboxylate
    —— (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-fluorophenyl)-hydroxymethylidene]-5-(4-hydroxyphenyl)pyrrolidine-2,3-dione —— C24H14ClFN2O4S
    (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-fluorophenyl)-hydroxymethylidene]-5-(4-hydroxyphenyl)pyrrolidine-2,3-dione
    —— ethyl 2-[(3E)-2-(3,4-diethoxyphenyl)-3-[(4-ethoxyphenyl)-hydroxymethylidene]-4,5-dioxopyrrolidin-1-yl]-4-methyl-1,3-thiazole-5-carboxylate —— C30H32N2O8S
    ethyl 2-[(3E)-2-(3,4-diethoxyphenyl)-3-[(4-ethoxyphenyl)-hydroxymethylidene]-4,5-dioxopyrrolidin-1-yl]-4-methyl-1,3-thiazole-5-carboxylate
    —— (3aS,4R,7S,7aS)-4-(hydroxymethyl)-7-methyl-2-phenyl-3a,7a-dihydro-4,7-epoxyisoindole-1,3-dione —— C16H15NO4
    (3aS,4R,7S,7aS)-4-(hydroxymethyl)-7-methyl-2-phenyl-3a,7a-dihydro-4,7-epoxyisoindole-1,3-dione
    —— (4E)-1-[5-[(2-chlorophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-5-(3,4-diethoxyphenyl)-4-[(4-ethoxyphenyl)-hydroxymethylidene]pyrrolidine-2,3-dione —— C32H30ClN3O6S2
    (4E)-1-[5-[(2-chlorophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-5-(3,4-diethoxyphenyl)-4-[(4-ethoxyphenyl)-hydroxymethylidene]pyrrolidine-2,3-dione
    —— (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-5-(3-ethoxy-4-hydroxyphenyl)-4-[hydroxy-(4-methylphenyl)methylidene]pyrrolidine-2,3-dione —— C27H21ClN2O5S
    (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-5-(3-ethoxy-4-hydroxyphenyl)-4-[hydroxy-(4-methylphenyl)methylidene]pyrrolidine-2,3-dione
    —— (4E)-5-(4-butoxy-3-methoxyphenyl)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[hydroxy-(4-methylphenyl)methylidene]pyrrolidine-2,3-dione —— C30H27ClN2O5S
    (4E)-5-(4-butoxy-3-methoxyphenyl)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[hydroxy-(4-methylphenyl)methylidene]pyrrolidine-2,3-dione
    —— (4E)-1-[2-(diethylamino)ethyl]-4-[hydroxy-(4-methylphenyl)methylidene]-5-(3-methoxy-4-pentoxyphenyl)pyrrolidine-2,3-dione —— C30H40N2O5
    (4E)-1-[2-(diethylamino)ethyl]-4-[hydroxy-(4-methylphenyl)methylidene]-5-(3-methoxy-4-pentoxyphenyl)pyrrolidine-2,3-dione
    —— (4E)-5-(4-tert-butylphenyl)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-chlorophenyl)-hydroxymethylidene]pyrrolidine-2,3-dione —— C28H22Cl2N2O3S
    (4E)-5-(4-tert-butylphenyl)-1-(6-chloro-1,3-benzothiazol-2-yl)-4-[(4-chlorophenyl)-hydroxymethylidene]pyrrolidine-2,3-dione
    —— (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-ethoxy-4-prop-2-enoxyphenyl)-1-(furan-2-ylmethyl)pyrrolidine-2,3-dione —— C29H29NO7
    (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-ethoxy-4-prop-2-enoxyphenyl)-1-(furan-2-ylmethyl)pyrrolidine-2,3-dione
    —— (4E)-1-[5-[(4-chlorophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-5-(3,4-diethoxyphenyl)-4-[(4-ethoxyphenyl)-hydroxymethylidene]pyrrolidine-2,3-dione —— C32H30ClN3O6S2
    (4E)-1-[5-[(4-chlorophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-5-(3,4-diethoxyphenyl)-4-[(4-ethoxyphenyl)-hydroxymethylidene]pyrrolidine-2,3-dione
    —— (4E)-1-[2-(diethylamino)ethyl]-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-[3-(3-methylbutoxy)phenyl]pyrrolidine-2,3-dione —— C30H40N2O5
    (4E)-1-[2-(diethylamino)ethyl]-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-[3-(3-methylbutoxy)phenyl]pyrrolidine-2,3-dione
    —— (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-[3-(3-methylbutoxy)phenyl]-1-(pyridin-3-ylmethyl)pyrrolidine-2,3-dione —— C30H32N2O5
    (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-[3-(3-methylbutoxy)phenyl]-1-(pyridin-3-ylmethyl)pyrrolidine-2,3-dione
    —— (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-5-(4-chlorophenyl)-4-[(4-fluorophenyl)-hydroxymethylidene]pyrrolidine-2,3-dione —— C24H13Cl2FN2O3S
    (4E)-1-(6-chloro-1,3-benzothiazol-2-yl)-5-(4-chlorophenyl)-4-[(4-fluorophenyl)-hydroxymethylidene]pyrrolidine-2,3-dione
    —— (4E)-1-[2-(diethylamino)ethyl]-4-[hydroxy-(4-propoxyphenyl)methylidene]-5-(3-methoxy-4-pentoxyphenyl)pyrrolidine-2,3-dione —— C32H44N2O6
    (4E)-1-[2-(diethylamino)ethyl]-4-[hydroxy-(4-propoxyphenyl)methylidene]-5-(3-methoxy-4-pentoxyphenyl)pyrrolidine-2,3-dione
    —— (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-[3-(3-methylbutoxy)phenyl]-1-(2-phenylethyl)pyrrolidine-2,3-dione —— C32H35NO5
    (4E)-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-[3-(3-methylbutoxy)phenyl]-1-(2-phenylethyl)pyrrolidine-2,3-dione