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 N-[[1-[(4-hydroxy-3-methoxyphenyl)methyl]-4-(2-methoxyphenyl)pyrrolidin-3-yl]methyl]-2-methyl-N-(2-methylpropyl)propanamide into its molecular formula.
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C28H40N2O4
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