You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule tert-butyl (2S,4R)-2-[(1-ethoxycarbonylcyclopropyl)carbamoyl]-4-(4-nitrobenzoyl)oxypyrrolidine-1-carboxylate into molecular formula.
user
C23H29N3O9
assistant