You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule (4S,5S)-5-[5-(4-ethoxyphenyl)furan-2-yl]-1-(4-ethylphenyl)-4-pyridin-2-ylimidazolidine-2-thione ?
user
C28H27N3O2S
assistant