You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named (5S)-5-[2-[(6-chloro-1,3-benzodioxol-5-yl)methylamino]ethyl]-1-[(2S)-2-phenylpropyl]pyrrolidin-2-one is given. What is its corresponding molecular formula?
user
C23H27ClN2O3
assistant