You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named (2S,3S,4R)-N-benzyl-4-methoxy-3-(4-methoxyanilino)-5-oxo-1-prop-2-enylpyrrolidine-2-carboxamide is given. What is its corresponding molecular formula?
user
C23H27N3O4
assistant