You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[[(2R)-7-(5-acetyl-2-fluorophenyl)-5-methyl-2,3-dihydro-1-benzofuran-2-yl]methyl]cyclobutanecarboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H24FNO3
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