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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
    —— 2-[(3aS,6aS)-5-(3,5-dimethylphenyl)-4,6-dioxo-3a,6a-dihydropyrrolo[3,4-d]triazol-3-yl]-N-(3-methylphenyl)acetamide —— C21H21N5O3
    2-[(3aS,6aS)-5-(3,5-dimethylphenyl)-4,6-dioxo-3a,6a-dihydropyrrolo[3,4-d]triazol-3-yl]-N-(3-methylphenyl)acetamide
    —— 2-[(3aS,6aS)-5-(3-chloro-4-methylphenyl)-4,6-dioxo-3a,6a-dihydropyrrolo[3,4-d]triazol-3-yl]-N-(2-fluorophenyl)acetamide —— C19H15ClFN5O3
    2-[(3aS,6aS)-5-(3-chloro-4-methylphenyl)-4,6-dioxo-3a,6a-dihydropyrrolo[3,4-d]triazol-3-yl]-N-(2-fluorophenyl)acetamide
    —— 2-[(3aS,6aS)-5-(3,5-dimethylphenyl)-4,6-dioxo-3a,6a-dihydropyrrolo[3,4-d]triazol-3-yl]-N-(1,3-thiazol-2-yl)acetamide —— C17H16N6O3S
    2-[(3aS,6aS)-5-(3,5-dimethylphenyl)-4,6-dioxo-3a,6a-dihydropyrrolo[3,4-d]triazol-3-yl]-N-(1,3-thiazol-2-yl)acetamide
    —— (3R)-1-(3,5-dichlorophenyl)-3-morpholin-4-ium-4-ylpyrrolidine-2,5-dione —— C14H15Cl2N2O3+
    (3R)-1-(3,5-dichlorophenyl)-3-morpholin-4-ium-4-ylpyrrolidine-2,5-dione
    —— [[4-[(1R,3aS,4R,8aS,8bR)-2-[(4-chlorophenyl)methyl]-3-oxo-1-propan-2-yl-1,3a,4,6,7,8,8a,8b-octahydropyrrolo[3,4-a]pyrrolizin-4-yl]phenyl]-aminomethylidene]azanium —— C26H32ClN4O+
    [[4-[(1R,3aS,4R,8aS,8bR)-2-[(4-chlorophenyl)methyl]-3-oxo-1-propan-2-yl-1,3a,4,6,7,8,8a,8b-octahydropyrrolo[3,4-a]pyrrolizin-4-yl]phenyl]-aminomethylidene]azanium
    —— (5S)-1-(6-ethoxy-1,3-benzothiazol-2-yl)-4-[hydroxy-[(2R)-2-methyl-2,3-dihydro-1-benzofuran-5-yl]methylidene]-5-(3-nitrophenyl)pyrrolidine-2,3-dione —— C29H23N3O7S
    (5S)-1-(6-ethoxy-1,3-benzothiazol-2-yl)-4-[hydroxy-[(2R)-2-methyl-2,3-dihydro-1-benzofuran-5-yl]methylidene]-5-(3-nitrophenyl)pyrrolidine-2,3-dione
    —— (5R)-1-(6-ethoxy-1,3-benzothiazol-2-yl)-4-[hydroxy-[(2S)-2-methyl-2,3-dihydro-1-benzofuran-5-yl]methylidene]-5-(3-nitrophenyl)pyrrolidine-2,3-dione —— C29H23N3O7S
    (5R)-1-(6-ethoxy-1,3-benzothiazol-2-yl)-4-[hydroxy-[(2S)-2-methyl-2,3-dihydro-1-benzofuran-5-yl]methylidene]-5-(3-nitrophenyl)pyrrolidine-2,3-dione
    —— (5R)-1-(6-ethoxy-1,3-benzothiazol-2-yl)-4-[hydroxy-[(2R)-2-methyl-2,3-dihydro-1-benzofuran-5-yl]methylidene]-5-(3-nitrophenyl)pyrrolidine-2,3-dione —— C29H23N3O7S
    (5R)-1-(6-ethoxy-1,3-benzothiazol-2-yl)-4-[hydroxy-[(2R)-2-methyl-2,3-dihydro-1-benzofuran-5-yl]methylidene]-5-(3-nitrophenyl)pyrrolidine-2,3-dione
    —— (1S,5R,6R,7S)-N-[2-(3,4-dimethoxyphenyl)ethyl]-4-oxo-3-phenyl-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxamide —— C25H26N2O5
    (1S,5R,6R,7S)-N-[2-(3,4-dimethoxyphenyl)ethyl]-4-oxo-3-phenyl-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxamide
    —— (5S)-4-[(3-fluoro-4-methylphenyl)-hydroxymethylidene]-5-(3-methoxyphenyl)-1-[5-(naphthalen-1-ylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]pyrrolidine-2,3-dione —— C32H24FN3O4S2
    (5S)-4-[(3-fluoro-4-methylphenyl)-hydroxymethylidene]-5-(3-methoxyphenyl)-1-[5-(naphthalen-1-ylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]pyrrolidine-2,3-dione
    —— (3aS,6aR)-5-(2,4-dimethylphenyl)-3-(4-nitrophenyl)-1-phenyl-3a,6a-dihydropyrrolo[3,4-c]pyrazole-4,6-dione —— C25H20N4O4
    (3aS,6aR)-5-(2,4-dimethylphenyl)-3-(4-nitrophenyl)-1-phenyl-3a,6a-dihydropyrrolo[3,4-c]pyrazole-4,6-dione
    —— (3aR,4S,8aR,8bS)-2-(3,5-dimethylphenyl)-1'-ethylspiro[3a,6,7,8,8a,8b-hexahydropyrrolo[3,4-a]pyrrolizine-4,3'-indole]-1,2',3-trione —— C26H27N3O3
    (3aR,4S,8aR,8bS)-2-(3,5-dimethylphenyl)-1'-ethylspiro[3a,6,7,8,8a,8b-hexahydropyrrolo[3,4-a]pyrrolizine-4,3'-indole]-1,2',3-trione
    —— (3aR,4R,8aR,8bS)-1'-ethyl-2-(2-fluorophenyl)spiro[3a,6,7,8,8a,8b-hexahydropyrrolo[3,4-a]pyrrolizine-4,3'-indole]-1,2',3-trione —— C24H22FN3O3
    (3aR,4R,8aR,8bS)-1'-ethyl-2-(2-fluorophenyl)spiro[3a,6,7,8,8a,8b-hexahydropyrrolo[3,4-a]pyrrolizine-4,3'-indole]-1,2',3-trione
    —— (1S,5S,6R,7S)-3-(4-acetamidophenyl)-4-oxo-N-(2,2,6,6-tetramethylpiperidin-4-yl)-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxamide —— C26H34N4O4
    (1S,5S,6R,7S)-3-(4-acetamidophenyl)-4-oxo-N-(2,2,6,6-tetramethylpiperidin-4-yl)-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxamide
    —— (1S,5R,6R,7S)-N-[2-(3,4-dimethoxyphenyl)ethyl]-3-(2-fluorophenyl)-4-oxo-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxamide —— C25H25FN2O5
    (1S,5R,6R,7S)-N-[2-(3,4-dimethoxyphenyl)ethyl]-3-(2-fluorophenyl)-4-oxo-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxamide
    —— (3aR,6aR)-5-(2,4-dimethylphenyl)-3-(4-nitrophenyl)-1-phenyl-3a,6a-dihydropyrrolo[3,4-c]pyrazole-4,6-dione —— C25H20N4O4
    (3aR,6aR)-5-(2,4-dimethylphenyl)-3-(4-nitrophenyl)-1-phenyl-3a,6a-dihydropyrrolo[3,4-c]pyrazole-4,6-dione
    —— (3aR,6aS)-5-(2,4-dimethylphenyl)-3-(4-nitrophenyl)-1-phenyl-3a,6a-dihydropyrrolo[3,4-c]pyrazole-4,6-dione —— C25H20N4O4
    (3aR,6aS)-5-(2,4-dimethylphenyl)-3-(4-nitrophenyl)-1-phenyl-3a,6a-dihydropyrrolo[3,4-c]pyrazole-4,6-dione
    —— (1R,5S,6R,7R)-3-(4-acetamidophenyl)-4-oxo-N-(2,2,6,6-tetramethylpiperidin-4-yl)-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxamide —— C26H34N4O4
    (1R,5S,6R,7R)-3-(4-acetamidophenyl)-4-oxo-N-(2,2,6,6-tetramethylpiperidin-4-yl)-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxamide
    —— (3aR,4R,8aR,8bS)-2-(3,5-dimethylphenyl)-1'-ethylspiro[3a,6,7,8,8a,8b-hexahydropyrrolo[3,4-a]pyrrolizine-4,3'-indole]-1,2',3-trione —— C26H27N3O3
    (3aR,4R,8aR,8bS)-2-(3,5-dimethylphenyl)-1'-ethylspiro[3a,6,7,8,8a,8b-hexahydropyrrolo[3,4-a]pyrrolizine-4,3'-indole]-1,2',3-trione
    —— (1R,11S,12R,16R)-11-(furan-2-carbonyl)-14-(2-methoxyphenyl)-10,14-diazatetracyclo[8.6.0.02,7.012,16]hexadeca-2,4,6,8-tetraene-13,15-dione —— C26H20N2O5
    (1R,11S,12R,16R)-11-(furan-2-carbonyl)-14-(2-methoxyphenyl)-10,14-diazatetracyclo[8.6.0.02,7.012,16]hexadeca-2,4,6,8-tetraene-13,15-dione
    —— (3aS,6aS)-5-(2,4-dimethylphenyl)-3-(4-fluorophenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione —— C19H15FN2O3
    (3aS,6aS)-5-(2,4-dimethylphenyl)-3-(4-fluorophenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione
    —— (3aS,6aR)-3-(4-fluorophenyl)-5-(2-methoxy-5-nitrophenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione —— C18H12FN3O6
    (3aS,6aR)-3-(4-fluorophenyl)-5-(2-methoxy-5-nitrophenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione
    —— (1S,11S,12R,16R)-11-(furan-2-carbonyl)-14-(2-methoxy-5-nitrophenyl)-10,14-diazatetracyclo[8.6.0.02,7.012,16]hexadeca-2,4,6,8-tetraene-13,15-dione —— C26H19N3O7
    (1S,11S,12R,16R)-11-(furan-2-carbonyl)-14-(2-methoxy-5-nitrophenyl)-10,14-diazatetracyclo[8.6.0.02,7.012,16]hexadeca-2,4,6,8-tetraene-13,15-dione
    —— (1R,11S,12R,16R)-14-(2,4-dimethoxyphenyl)-11-(furan-2-carbonyl)-10,14-diazatetracyclo[8.6.0.02,7.012,16]hexadeca-2,4,6,8-tetraene-13,15-dione —— C27H22N2O6
    (1R,11S,12R,16R)-14-(2,4-dimethoxyphenyl)-11-(furan-2-carbonyl)-10,14-diazatetracyclo[8.6.0.02,7.012,16]hexadeca-2,4,6,8-tetraene-13,15-dione
    —— 2-methylpropyl 2-[(2R)-3-(3H-1,3-benzothiazol-2-ylidene)-2-(4-ethylphenyl)-4,5-dioxopyrrolidin-1-yl]-4-methyl-1,3-thiazole-5-carboxylate —— C28H27N3O4S2
    2-methylpropyl 2-[(2R)-3-(3H-1,3-benzothiazol-2-ylidene)-2-(4-ethylphenyl)-4,5-dioxopyrrolidin-1-yl]-4-methyl-1,3-thiazole-5-carboxylate
    —— (5R)-4-(3H-1,3-benzothiazol-2-ylidene)-1-(5-benzylsulfanyl-1,3,4-thiadiazol-2-yl)-5-(4-ethylphenyl)pyrrolidine-2,3-dione —— C28H22N4O2S3
    (5R)-4-(3H-1,3-benzothiazol-2-ylidene)-1-(5-benzylsulfanyl-1,3,4-thiadiazol-2-yl)-5-(4-ethylphenyl)pyrrolidine-2,3-dione
    —— (1R,11S,12R,16R)-11-(furan-2-carbonyl)-14-(2-methoxy-5-nitrophenyl)-10,14-diazatetracyclo[8.6.0.02,7.012,16]hexadeca-2,4,6,8-tetraene-13,15-dione —— C26H19N3O7
    (1R,11S,12R,16R)-11-(furan-2-carbonyl)-14-(2-methoxy-5-nitrophenyl)-10,14-diazatetracyclo[8.6.0.02,7.012,16]hexadeca-2,4,6,8-tetraene-13,15-dione
    —— (3aR,6aR)-3-(4-fluorophenyl)-5-(2-methoxy-5-nitrophenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione —— C18H12FN3O6
    (3aR,6aR)-3-(4-fluorophenyl)-5-(2-methoxy-5-nitrophenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione
    —— (5R)-4-[(3-fluoro-4-methylphenyl)-hydroxymethylidene]-5-(3-methoxyphenyl)-1-[5-(naphthalen-1-ylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]pyrrolidine-2,3-dione —— C32H24FN3O4S2
    (5R)-4-[(3-fluoro-4-methylphenyl)-hydroxymethylidene]-5-(3-methoxyphenyl)-1-[5-(naphthalen-1-ylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]pyrrolidine-2,3-dione
    —— (3aR,4S,8aR,8bS)-1'-ethyl-2-(2-fluorophenyl)spiro[3a,6,7,8,8a,8b-hexahydropyrrolo[3,4-a]pyrrolizine-4,3'-indole]-1,2',3-trione —— C24H22FN3O3
    (3aR,4S,8aR,8bS)-1'-ethyl-2-(2-fluorophenyl)spiro[3a,6,7,8,8a,8b-hexahydropyrrolo[3,4-a]pyrrolizine-4,3'-indole]-1,2',3-trione
    —— (3aS,6aS)-3-(4-fluorophenyl)-5-(2-methoxy-5-nitrophenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione —— C18H12FN3O6
    (3aS,6aS)-3-(4-fluorophenyl)-5-(2-methoxy-5-nitrophenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione
    —— (3aS,6aR)-5-(3-bromophenyl)-3-(4-fluorophenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione —— C17H10BrFN2O3
    (3aS,6aR)-5-(3-bromophenyl)-3-(4-fluorophenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione
    —— (5R)-4-[(3-fluoro-4-methylphenyl)-hydroxymethylidene]-5-(2-fluorophenyl)-1-[5-(naphthalen-1-ylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]pyrrolidine-2,3-dione —— C31H21F2N3O3S2
    (5R)-4-[(3-fluoro-4-methylphenyl)-hydroxymethylidene]-5-(2-fluorophenyl)-1-[5-(naphthalen-1-ylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]pyrrolidine-2,3-dione
    —— (3aS,6aR)-3-(4-bromophenyl)-5-(2-methoxyphenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione —— C18H13BrN2O4
    (3aS,6aR)-3-(4-bromophenyl)-5-(2-methoxyphenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione
    —— (5S)-4-[(3-fluoro-4-methylphenyl)-hydroxymethylidene]-5-(2-fluorophenyl)-1-[5-(naphthalen-1-ylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]pyrrolidine-2,3-dione —— C31H21F2N3O3S2
    (5S)-4-[(3-fluoro-4-methylphenyl)-hydroxymethylidene]-5-(2-fluorophenyl)-1-[5-(naphthalen-1-ylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]pyrrolidine-2,3-dione
    —— (3aR,4S,8aR,8bS)-2-(3-chloro-4-fluorophenyl)-1'-ethylspiro[3a,6,7,8,8a,8b-hexahydropyrrolo[3,4-a]pyrrolizine-4,3'-indole]-1,2',3-trione —— C24H21ClFN3O3
    (3aR,4S,8aR,8bS)-2-(3-chloro-4-fluorophenyl)-1'-ethylspiro[3a,6,7,8,8a,8b-hexahydropyrrolo[3,4-a]pyrrolizine-4,3'-indole]-1,2',3-trione
    —— (3aR,6aR)-3-(1,3-dimethylpyrazol-4-yl)-5-(4-methoxyphenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione —— C17H16N4O4
    (3aR,6aR)-3-(1,3-dimethylpyrazol-4-yl)-5-(4-methoxyphenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione
    —— (10S,11S,15S,16S)-16-(2,2-dimethylpropanoyl)-13-(4-methoxyphenyl)-5,8-dimethyl-1,13-diazatetracyclo[8.6.0.02,7.011,15]hexadeca-2,4,6,8-tetraene-12,14-dione —— C28H30N2O4
    (10S,11S,15S,16S)-16-(2,2-dimethylpropanoyl)-13-(4-methoxyphenyl)-5,8-dimethyl-1,13-diazatetracyclo[8.6.0.02,7.011,15]hexadeca-2,4,6,8-tetraene-12,14-dione
    —— (3aR,4R,8aR,8bS)-2-(3-chloro-4-fluorophenyl)-1'-ethylspiro[3a,6,7,8,8a,8b-hexahydropyrrolo[3,4-a]pyrrolizine-4,3'-indole]-1,2',3-trione —— C24H21ClFN3O3
    (3aR,4R,8aR,8bS)-2-(3-chloro-4-fluorophenyl)-1'-ethylspiro[3a,6,7,8,8a,8b-hexahydropyrrolo[3,4-a]pyrrolizine-4,3'-indole]-1,2',3-trione
    —— (1S,5S,6R,7S)-N-(2-hydroxyethyl)-4-oxo-3-phenyl-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxamide —— C17H18N2O4
    (1S,5S,6R,7S)-N-(2-hydroxyethyl)-4-oxo-3-phenyl-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxamide
    —— (3aR,6aR)-5-(2,4-dimethylphenyl)-3-(4-fluorophenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione —— C19H15FN2O3
    (3aR,6aR)-5-(2,4-dimethylphenyl)-3-(4-fluorophenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione
    —— (1S,5R,6S,7S)-N-[2-(3,4-dimethoxyphenyl)ethyl]-4-oxo-3-phenyl-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxamide —— C25H26N2O5
    (1S,5R,6S,7S)-N-[2-(3,4-dimethoxyphenyl)ethyl]-4-oxo-3-phenyl-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxamide
    —— (1R,5S,6R,7R)-N-(2-hydroxyethyl)-4-oxo-3-phenyl-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxamide —— C17H18N2O4
    (1R,5S,6R,7R)-N-(2-hydroxyethyl)-4-oxo-3-phenyl-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxamide
    —— (10R,11S,15S,16S)-16-(2,2-dimethylpropanoyl)-13-(4-methoxyphenyl)-5,8-dimethyl-1,13-diazatetracyclo[8.6.0.02,7.011,15]hexadeca-2,4,6,8-tetraene-12,14-dione —— C28H30N2O4
    (10R,11S,15S,16S)-16-(2,2-dimethylpropanoyl)-13-(4-methoxyphenyl)-5,8-dimethyl-1,13-diazatetracyclo[8.6.0.02,7.011,15]hexadeca-2,4,6,8-tetraene-12,14-dione
    —— (5S)-4-[(3-fluoro-4-methylphenyl)-hydroxymethylidene]-1-[5-(naphthalen-1-ylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]-5-(4-nitrophenyl)pyrrolidine-2,3-dione —— C31H21FN4O5S2
    (5S)-4-[(3-fluoro-4-methylphenyl)-hydroxymethylidene]-1-[5-(naphthalen-1-ylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]-5-(4-nitrophenyl)pyrrolidine-2,3-dione
    —— (3aR,6aS)-3-(1,3-dimethylpyrazol-4-yl)-5-(4-methoxyphenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione —— C17H16N4O4
    (3aR,6aS)-3-(1,3-dimethylpyrazol-4-yl)-5-(4-methoxyphenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione
    —— (3aS,6aS)-3-(1,3-dimethylpyrazol-4-yl)-5-(4-methoxyphenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione —— C17H16N4O4
    (3aS,6aS)-3-(1,3-dimethylpyrazol-4-yl)-5-(4-methoxyphenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione
    —— (3aR,6aR)-3-(4-fluorophenyl)-5-(2-methyl-5-nitrophenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione —— C18H12FN3O5
    (3aR,6aR)-3-(4-fluorophenyl)-5-(2-methyl-5-nitrophenyl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione
    —— (3aR,6aR)-5-(4-chlorophenyl)-3-(1,3-dimethylpyrazol-4-yl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione —— C16H13ClN4O3
    (3aR,6aR)-5-(4-chlorophenyl)-3-(1,3-dimethylpyrazol-4-yl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione
    —— (3aS,6aS)-5-(5-chloro-2-methoxyphenyl)-3-(1,3-dimethylpyrazol-4-yl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione —— C17H15ClN4O4
    (3aS,6aS)-5-(5-chloro-2-methoxyphenyl)-3-(1,3-dimethylpyrazol-4-yl)-3a,6a-dihydropyrrolo[3,4-d][1,2]oxazole-4,6-dione