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 4-(2,5-dichlorothiophen-3-yl)-1-[4-[(2R)-oxolan-2-yl]piperidin-1-yl]butan-1-one is given. What is its corresponding molecular formula?
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C17H23Cl2NO2S
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