You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (4R,5S)-5-[1-(5-chloro-2-methoxyphenyl)-2,5-dimethylpyrrol-3-yl]-1-(4-methylphenyl)-4-pyridin-2-ylimidazolidine-2-thione ?
user
C28H27ClN4OS
assistant