You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 2-[[2-(3,4-dihydro-2H-1,5-benzodioxepin-7-yl)pyrrolidin-1-yl]methyl]-8-methyl-3H-quinazolin-4-one into molecular formula.
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C23H25N3O3
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