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 (3R)-1-[(3,4-dichlorophenyl)methylsulfonyl]-N-(4-propan-2-yloxyphenyl)piperidine-3-carboxamide into molecular formula.
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C22H26Cl2N2O4S
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