ethyl 2-(1-methyl-3-oxo-1,3-dihydro-2-benzofuran-1-yl)propanoate
2-(1-methyl-3-oxo-isobenzofuran-1-yl)-propionic acid ethyl ester 2-(3-keto-1-methyl-isobenzofuran-1-yl)propionic acid ethyl ester ethyl 2-(1-methyl-3-oxo-2-benzofuran-1-yl)propanoate
ethyl 2-(1-methyl-3-oxo-2-benzofuran-1-yl)propanoat éthyle2-(1-méthyl-3-oxo-2-benzofuran-1-yl)propanoate エチル=2-(1-メチル-3-オキソ-2-ベンゾフラン-1-イル)プロパノアテ
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