You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name (3aR,6aS)-1-(4-methyl-2-phenylmethoxypentanoyl)-2,3,3a,4,5,6a-hexahydropyrrolo[3,2-b]pyrrol-6-one into its molecular formula.
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C19H26N2O3
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