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 2-(2,2-dimethyl-3-oxo-6-propanoyl-1,4-benzoxazin-4-yl)-N-methylacetamide is given. What is its corresponding molecular formula?
user
C16H20N2O4
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