You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
propan-2-yl N-[4-oxo-4-[3-[3-(trifluoromethyl)pyrazol-1-yl]azetidin-1-yl]-1-(2,4,5-trifluorophenyl)butan-2-yl]carbamate is the IUPAC name of a molecule. Please give its molecular formula.
user
C21H22F6N4O3
assistant