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 2-N-[(4-aminopiperidin-1-yl)methyl]-2-N-[(4-fluorophenyl)methyl]-1-N-methylbenzene-1,2-diamine .
user
C20H27FN4
assistant