You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 1-[3-[5-(2-fluorophenyl)furan-2-yl]propanoyl]-N-(2,2,2-trifluoroethyl)pyrrolidine-2-carboxamide into molecular formula.
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C20H20F4N2O3
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