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-[[(3aR,9aS)-5,8-difluoro-1,3,3a,9a-tetrahydro-[1,4]benzodioxino[2,3-c]pyrrol-2-yl]methyl]-5-hydroxypyran-4-one by IUPAC nomenclature, provide its molecular formula.
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C16H13F2NO5
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