You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 1-[[1-(difluoromethyl)imidazol-2-yl]methyl]-2-methyl-3-[1-[4-(2-methylpropyl)phenyl]ethyl]guanidine using the IUPAC nomenclature.
user
C19H27F2N5
assistant