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 3-[(3R)-3-[[(2S,6R)-2,6-dimethyloxan-4-yl]amino]piperidin-1-yl]-1H-pyrazin-2-one is given. What is its corresponding molecular formula?
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C16H26N4O2
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