You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 3-[[(3aS,6aS)-1-benzyl-2,3,3a,4,6,6a-hexahydropyrrolo[2,3-c]pyrrol-5-yl]methyl]furan-2-carboxylic acid by IUPAC nomenclature, provide its molecular formula.
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C19H22N2O3
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