You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule [2-[(4aR,8aS)-3,4,4a,5,6,7,8,8a-octahydro-1H-isoquinolin-2-yl]-2-oxoethyl] 5-(4-nitrophenyl)furan-2-carboxylate into molecular formula.
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C22H24N2O6
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