You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 1-[4-[(3S)-3-hydroxypiperidin-1-yl]piperidin-1-yl]-3-pyrazin-2-ylpropan-1-one by IUPAC nomenclature, provide its molecular formula.
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C17H26N4O2
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