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 methyl N-[1-[4-fluoro-3-(trifluoromethyl)phenyl]cyclopropyl]-N-[[(2S)-2-methylpyrrolidin-2-yl]methyl]carbamate .
user
C18H22F4N2O2
assistant