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3,5-dimethyl-5,6,7,7a-tetrahydro-1-benzofuran-2(4H)-one 3,5-dimethyl-5,6,7,7a-tetrahydro-4H-1-benzofuran-2-one 3,5-dimethyl-5,6,7,7a-tetrahydro-4H-benzofuran-2-one 3,5-dimethyl-5,6,7,7a-tetrahydro-4H-1-benzofuran-2-on 3,5-diméthyl-5,6,7,7a-tetrahydro-4H-1-benzofuran-2-one 3,5-ジメチル-5,6,7,7a-テトラヒドロ-4H-1-ベンゾフラン-2-オン
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