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-[(E)-3-(6-bromo-8-fluoro-2,3-dihydro-1,4-benzoxazin-4-yl)prop-1-enyl]-N'-methylmethanimidamide is given. What is its corresponding molecular formula?
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C13H15BrFN3O
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