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 1-[(3S)-3-[[methyl-[(1R)-1-(4-propan-2-ylphenyl)ethyl]amino]methyl]pyrrolidin-1-yl]ethanone is given. What is its corresponding molecular formula?
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C19H30N2O
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