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 [2,2,6,6-tetramethyl-1-[4-(2,2,6,6-tetramethyl-4-propanoyloxypiperidin-1-yl)but-2-ynyl]piperidin-4-yl] propanoate is given. What is its corresponding molecular formula?
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C28H48N2O4
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