You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(3S,4R)-1-(benzenesulfonyl)-4-(2,5-dimethoxyphenyl)pyrrolidin-3-yl]-pyrrolidin-1-ylmethanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H28N2O5S
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