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 4-[2-(2,3-difluorophenyl)acetyl]-1-(2-methylpropyl)-6-(pyridin-2-ylmethoxy)-1,4-diazepan-2-one is given. What is its corresponding molecular formula?
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C23H27F2N3O3
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