You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 2-(2,6-difluorophenyl)-N-[4-[(2R,3S,4R)-2-ethenyl-3,4-dihydroxy-3,4-dihydro-2H-pyran-6-yl]pyridin-3-yl]pyrimidine-4-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C23H18F2N4O4
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