You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (4R,5R)-1-[3-chloro-4-(4-methylpiperidin-1-yl)phenyl]-4-pyridin-2-yl-5-[1-(pyridin-3-ylmethyl)pyrrol-2-yl]imidazolidine-2-thione into molecular formula.
user
C30H31ClN6S
assistant