You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl N-[1-(3-acetamidoanilino)-3-[4-(difluoromethoxy)phenyl]-1-oxopropan-2-yl]carbamate is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H27F2N3O5
assistant