You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named N-[[1-[(E)-3-(furan-2-yl)prop-2-enyl]piperidin-3-yl]methyl]-5-methylpyrazine-2-carboxamide is given. What is its corresponding molecular formula?
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C19H24N4O2
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