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 (3R)-N-(3,4-dihydro-2H-1,5-benzodioxepin-7-yl)-1-oxo-3-phenyl-3,4-dihydroisochromene-6-carboxamide is given. What is its corresponding molecular formula?
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C25H21NO5
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