You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[2-[1,3-benzoxazol-2-yl-[[4-fluoro-2-(trifluoromethyl)phenyl]carbamoyl]amino]ethyl]carbamate into molecular formula.
user
C18H13F4N4O4-
assistant