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 1-[(4-chloro-3-fluorophenyl)methyl]-1-methyl-3-[(1S)-1-[(2R)-4-methylmorpholin-2-yl]ethyl]urea .
user
C16H23ClFN3O2
assistant