You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-[[(1R,3R,4S)-2-benzyl-2-azabicyclo[2.2.1]hept-5-en-3-yl]methyl]isoindole-1,3-dione into molecular formula.
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C22H20N2O2
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