You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-(2,2-dimethyl-3-phenylpropyl)-2-methyl-3-(9-methyl-9-azabicyclo[3.3.1]nonan-3-yl)guanidine into its molecular formula.
user
C22H36N4
assistant