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-(1-adamantyl)-N-[2-[2-(methylaminomethyl)pyrrolidin-1-yl]-2-oxoethyl]acetamide;hydrochloride is given. What is its corresponding molecular formula?
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C20H34ClN3O2
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