You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 3-[(4-fluorophenyl)methyl]-N'-methyl-N-[(2-methylpyrazol-3-yl)methyl]pyrrolidine-1-carboximidamide into molecular formula.
user
C18H24FN5
assistant