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    methyl 2-cyano-3-oxobutanoate
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    ethyl 1-acetylcyclopent-3-ene-1-carboxylate
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    ethyl 2-ethenyl-5-methyl-2,3-dihydrofuran-4-carboxylate
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    ethyl 1-acetyl-2-vinylcyclopropanecarboxylate
  • 74379-82-1
    ethyl 1-acetyl-2-vinylcyclopropanecarboxylate
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