You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(3S)-4-benzyl-7-fluoro-2,3-dihydro-1,4-benzoxazin-3-yl]-N-[(2-chlorophenyl)methyl]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H22ClFN2O2
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