You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (3R)-N-[2-(4-tert-butylphenoxy)ethyl]-3-[(1R)-1-hydroxyethyl]pyrrolidine-1-carboxamide is given. What is its corresponding molecular formula?
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C19H30N2O3
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