You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 2-[(3S,5S)-5-[[4-[4-(2-aminoethyl)phenyl]phenoxy]methyl]-2-oxopyrrolidin-3-yl]acetate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H26N2O4
assistant