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-dichloro-N-[2-(2-chloro-4,5-difluorophenyl)-1,3-benzoxazol-5-yl]benzamide .
user
C20H9Cl3F2N2O2
assistant