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-[[(3R)-1-[(2-fluorophenyl)methyl]pyrrolidin-3-yl]methyl]-3-[(5-oxo-1,4-dihydro-1,2,4-triazol-3-yl)methyl]urea .
user
C16H21FN6O2
assistant