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 N-[(6-fluoro-1H-benzimidazol-2-yl)methyl]-N-methyl-1-[1-[(5-methylfuran-2-yl)methyl]piperidin-4-yl]methanamine .
user
C21H27FN4O
assistant