You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 3-methyl-N-[(6-oxo-2-pyridin-3-yl-1H-pyrimidin-4-yl)methyl]-1-benzofuran-2-carboxamide into molecular formula.
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C20H16N4O3
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