You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-[(3-chloro-2-fluorophenyl)methyl]-8,11-dioxo-10-phenylmethoxy-3-oxa-7,16-diazatetracyclo[7.6.1.02,7.013,16]hexadeca-9,12-diene-12-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C28H25ClFN3O5
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