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-[[(4S)-4-furo[3,2-c]pyridin-2-yl-5-hydroxy-2-oxoimidazolidin-4-yl]methyl]-6-methoxy-3H-isoindol-1-one into molecular formula.
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C20H18N4O5
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