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 (2S)-1-[2-(3,5-dichlorophenyl)pyridin-3-yl]-2-(4-fluorophenyl)-2-pyrrolidin-1-ylethanol is given. What is its corresponding molecular formula?
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C23H21Cl2FN2O
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