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-(cyclopropylmethyl)-2-(2-methyl-3-oxo-1,4-benzoxazin-4-yl)-N-(1-phenylethyl)acetamide is given. What is its corresponding molecular formula?
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C23H26N2O3
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