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 1-[2-(4-fluorophenyl)-2-morpholin-4-ylethyl]-2-methyl-3-[4-(2-methylimidazol-1-yl)butyl]guanidine .
user
C22H33FN6O
assistant