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-butan-2-yl-8-(3-fluorobenzoyl)-4-(3-methylbenzoyl)-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxamide is given. What is its corresponding molecular formula?
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C27H32FN3O4
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