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-methyl-2-(6-oxobenzo[c]chromen-3-yl)oxy-N-(2,3,4,5,6-pentahydroxyhexyl)acetamide is given. What is its corresponding molecular formula?
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C22H25NO9
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