You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 5-[4-[[3-(ethylcarbamoyl)phenyl]carbamoyl]piperidin-1-yl]sulfonylfuran-2-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H27N3O7S
assistant