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吡咯烷类

中文名称 英文名称 CAS号 化学式 结构式图片
—— (3aR,6aR)-3-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3-methylsulfanylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C21H18N6O3S
(3aR,6aR)-3-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3-methylsulfanylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-3-[[3-(3-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3,4-dimethylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C21H17ClN6O3
(3aR,6aR)-3-[[3-(3-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3,4-dimethylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aS,6aR)-5-(3-fluorophenyl)-3-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C20H15FN6O3
(3aS,6aR)-5-(3-fluorophenyl)-3-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aS,6aR)-5-(4-methoxyphenyl)-3-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C21H18N6O4
(3aS,6aR)-5-(4-methoxyphenyl)-3-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-3-[[3-(2-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-phenyl-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C20H16N6O3
(3aR,6aR)-3-[[3-(2-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-phenyl-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-3-[[3-(3-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3-fluorophenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C19H12BrFN6O3
(3aR,6aR)-3-[[3-(3-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3-fluorophenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-3-[[3-(2-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3-fluorophenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C19H12ClFN6O3
(3aR,6aR)-3-[[3-(2-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3-fluorophenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aS)-3-[[3-(1,3-benzodioxol-5-yl)-1,2,4-oxadiazol-5-yl]methyl]-5-phenyl-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C20H14N6O5
(3aR,6aS)-3-[[3-(1,3-benzodioxol-5-yl)-1,2,4-oxadiazol-5-yl]methyl]-5-phenyl-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aS,6aR)-5-(3,4-difluorophenyl)-3-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C20H14F2N6O3
(3aS,6aR)-5-(3,4-difluorophenyl)-3-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aS)-3-[[3-(4-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3-methylsulfanylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C20H15ClN6O3S
(3aR,6aS)-3-[[3-(4-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3-methylsulfanylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-3-[[3-(3-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(4-methylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C20H15BrN6O3
(3aR,6aR)-3-[[3-(3-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(4-methylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-3-[[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3-methylsulfanylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C21H18N6O3S
(3aR,6aR)-3-[[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3-methylsulfanylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aS)-3-[[3-(2-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-phenyl-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C19H13ClN6O3
(3aR,6aS)-3-[[3-(2-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-phenyl-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aS)-3-[[3-(2-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3,4-dimethylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C21H17ClN6O3
(3aR,6aS)-3-[[3-(2-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3,4-dimethylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aS,6aR)-5-(4-bromophenyl)-3-[[3-(3,4-dimethylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C21H17BrN6O3
(3aS,6aR)-5-(4-bromophenyl)-3-[[3-(3,4-dimethylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aS,6aR)-5-(4-bromophenyl)-3-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C20H15BrN6O3
(3aS,6aR)-5-(4-bromophenyl)-3-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aS,6aR)-5-(3-chlorophenyl)-3-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C20H15ClN6O3
(3aS,6aR)-5-(3-chlorophenyl)-3-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-5-(4-ethoxyphenyl)-3-[[3-(4-propan-2-yloxyphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C24H24N6O5
(3aR,6aR)-5-(4-ethoxyphenyl)-3-[[3-(4-propan-2-yloxyphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-5-(3-chloro-4-methylphenyl)-3-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C21H17ClN6O3
(3aR,6aR)-5-(3-chloro-4-methylphenyl)-3-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-5-(4-methylphenyl)-3-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C21H18N6O3
(3aR,6aR)-5-(4-methylphenyl)-3-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-5-(4-ethoxyphenyl)-3-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C21H18N6O4
(3aR,6aR)-5-(4-ethoxyphenyl)-3-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aS,6aR)-5-(3-chlorophenyl)-3-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C19H13ClN6O3
(3aS,6aR)-5-(3-chlorophenyl)-3-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aS,6aR)-3-[[3-(4-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3,4-difluorophenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C19H11BrF2N6O3
(3aS,6aR)-3-[[3-(4-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3,4-difluorophenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aS,6aR)-5-(3,4-difluorophenyl)-3-[[3-(3,4-dimethylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C21H16F2N6O3
(3aS,6aR)-5-(3,4-difluorophenyl)-3-[[3-(3,4-dimethylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aS,6aR)-5-(3-fluorophenyl)-3-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C19H13FN6O3
(3aS,6aR)-5-(3-fluorophenyl)-3-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-5-(3,5-dimethoxyphenyl)-3-[[3-(2-ethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C23H22N6O6
(3aR,6aR)-5-(3,5-dimethoxyphenyl)-3-[[3-(2-ethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aS,6aR)-5-(4-bromophenyl)-3-[[3-(2-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C20H15BrN6O3
(3aS,6aR)-5-(4-bromophenyl)-3-[[3-(2-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-3-[[3-(4-propan-2-yloxyphenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(4-propan-2-ylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C25H26N6O4
(3aR,6aR)-3-[[3-(4-propan-2-yloxyphenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(4-propan-2-ylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-5-(4-methylphenyl)-3-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C20H16N6O3
(3aR,6aR)-5-(4-methylphenyl)-3-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-5-(3-chloro-4-fluorophenyl)-3-[[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C20H14ClFN6O3
(3aR,6aR)-5-(3-chloro-4-fluorophenyl)-3-[[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-3-[[3-(3-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(4-ethylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C21H17BrN6O3
(3aR,6aR)-3-[[3-(3-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(4-ethylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aS,6aR)-5-(3,4-difluorophenyl)-3-[[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C20H14F2N6O4
(3aS,6aR)-5-(3,4-difluorophenyl)-3-[[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-3-[[3-(4-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3-fluorophenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C19H12BrFN6O3
(3aR,6aR)-3-[[3-(4-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3-fluorophenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (2R)-N-[4-ethoxy-2-(trifluoromethyl)phenyl]-2-(4-methoxyphenyl)pyrrolidine-1-carboxamide —— C21H23F3N2O3
(2R)-N-[4-ethoxy-2-(trifluoromethyl)phenyl]-2-(4-methoxyphenyl)pyrrolidine-1-carboxamide
—— (3S,4S)-N-[(Z)-[(E)-3-(2-nitrophenyl)prop-2-enylidene]amino]-2-oxo-4-phenylpyrrolidine-3-carboxamide —— C20H18N4O4
(3S,4S)-N-[(Z)-[(E)-3-(2-nitrophenyl)prop-2-enylidene]amino]-2-oxo-4-phenylpyrrolidine-3-carboxamide
—— (3aR,6aR)-5-(4-ethoxyphenyl)-3-[[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C22H20N6O4
(3aR,6aR)-5-(4-ethoxyphenyl)-3-[[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (2R)-2-(2,4-dimethoxyphenyl)-N-[4-ethoxy-2-(trifluoromethyl)phenyl]pyrrolidine-1-carboxamide —— C22H25F3N2O4
(2R)-2-(2,4-dimethoxyphenyl)-N-[4-ethoxy-2-(trifluoromethyl)phenyl]pyrrolidine-1-carboxamide
—— (3aR,6aR)-5-(3,4-dimethoxyphenyl)-3-[[3-(2-ethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C23H22N6O6
(3aR,6aR)-5-(3,4-dimethoxyphenyl)-3-[[3-(2-ethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aS)-3-[[3-(4-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3-fluorophenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C19H12ClFN6O3
(3aR,6aS)-3-[[3-(4-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3-fluorophenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aS,6aR)-3-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(4-propan-2-ylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C23H22N6O3
(3aS,6aR)-3-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(4-propan-2-ylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-3-[[3-(1,3-benzodioxol-5-yl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3,5-dimethoxyphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C22H18N6O7
(3aR,6aR)-3-[[3-(1,3-benzodioxol-5-yl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3,5-dimethoxyphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aS)-3-[[3-(2-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3,4-dimethylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C21H17BrN6O3
(3aR,6aS)-3-[[3-(2-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3,4-dimethylphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aS,6aR)-3-[[3-(3-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3,4-difluorophenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C19H11BrF2N6O3
(3aS,6aR)-3-[[3-(3-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3,4-difluorophenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-3-[[3-(3-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3-methoxyphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C20H15ClN6O4
(3aR,6aR)-3-[[3-(3-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3-methoxyphenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aS,6aR)-5-(3-fluorophenyl)-3-[[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C20H15FN6O3
(3aS,6aR)-5-(3-fluorophenyl)-3-[[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-3-[[3-(1,3-benzodioxol-5-yl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3-fluorophenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C20H13FN6O5
(3aR,6aR)-3-[[3-(1,3-benzodioxol-5-yl)-1,2,4-oxadiazol-5-yl]methyl]-5-(3-fluorophenyl)-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3aR,6aR)-5-(4-methylphenyl)-3-[[3-(4-propan-2-yloxyphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C23H22N6O4
(3aR,6aR)-5-(4-methylphenyl)-3-[[3-(4-propan-2-yloxyphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione
—— (3R,4R)-N-[(Z)-[(E)-3-(2-nitrophenyl)prop-2-enylidene]amino]-2-oxo-4-phenylpyrrolidine-3-carboxamide —— C20H18N4O4
(3R,4R)-N-[(Z)-[(E)-3-(2-nitrophenyl)prop-2-enylidene]amino]-2-oxo-4-phenylpyrrolidine-3-carboxamide
—— 2-[(3R)-2,5-dioxo-1-phenylpyrrolidin-3-yl]sulfanyl-5,6,7,8-tetrahydroquinoline-3-carbonitrile —— C20H17N3O2S
2-[(3R)-2,5-dioxo-1-phenylpyrrolidin-3-yl]sulfanyl-5,6,7,8-tetrahydroquinoline-3-carbonitrile
—— (3aR,6aS)-5-(4-ethylphenyl)-3-[[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione —— C22H20N6O3
(3aR,6aS)-5-(4-ethylphenyl)-3-[[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3a,6a-dihydropyrrolo[3,4-d]triazole-4,6-dione