You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 2-(4-chlorophenoxy)-N-[4-[(2-fluorophenyl)methyl]-3-oxo-1,4-benzoxazin-6-yl]acetamide .
user
C23H18ClFN2O4
assistant