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 tert-butyl N-[3-[[N-[(3-fluoro-4-imidazol-1-ylphenyl)methyl]-N'-methylcarbamimidoyl]amino]propyl]carbamate .
user
C20H29FN6O2
assistant