You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (1S,2S)-N-[4-(2,2-dimethylpropanoyl)-2,3-dihydro-1,4-benzoxazin-6-yl]-2-(furan-2-yl)cyclopropane-1-carboxamide into molecular formula.
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C21H24N2O4
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