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-[4-[1-(3-chlorophenyl)sulfonylpyrrolidin-3-yl]piperidin-1-yl]ethanone is given. What is its corresponding molecular formula?
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C17H23ClN2O3S
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