You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[3-(2-chlorophenoxy)phenyl]-[(3R)-spiro[1H-2-benzofuran-3,3'-pyrrolidine]-1'-yl]methanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C24H20ClNO3
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