You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[1-(4-acetylphenyl)-3-cyclohexyl-5-oxo-2-sulfanylideneimidazolidin-4-yl]-N-(1H-indol-6-yl)acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H28N4O3S
assistant