You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named tert-butyl 4-[3-[3-[(4-ethoxycarbonylphenyl)carbamoyl]piperidin-1-yl]-3-oxopropyl]piperidine-1-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C28H41N3O6
assistant