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 methyl 3-(methanesulfonamido)-2-[(1-phenylpiperidin-3-yl)methyl]piperidine-1-carboxylate is given. What is its corresponding molecular formula?
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C20H31N3O4S
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