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 ethyl 4-oxo-4-(2-oxo-3H-1,3-benzoxazol-6-yl)-3-(propan-2-ylamino)butanoate is given. What is its corresponding molecular formula?
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C16H20N2O5
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