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What is the molecular formula of the compound with this IUPAC name (1R,2S,4S,5S,6R)-N-[2-[(3E)-3-[(4-ethylphenyl)methylidene]-2,5-dioxopyrrolidin-1-yl]ethyl]-5,6-dihydroxybicyclo[2.2.1]heptane-2-carboxamide ?
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C23H28N2O5
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