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 3-[[1-(4-fluorophenyl)cyclobutyl]methyl]-1,2-dimethyl-1-[(2-methyl-1,3-thiazol-4-yl)methyl]guanidine .
user
C19H25FN4S
assistant