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 5-(1H-indol-3-ylmethyl)-3-[3-(4-phenylpiperidin-1-yl)propyl]imidazolidine-2,4-dione;iodomethane .
user
C27H33IN4O2
assistant