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 1-[5-chloro-4-(3-methylpyridin-2-yl)pyridin-2-yl]-N-[[(2R)-oxolan-2-yl]methyl]piperidine-4-carboxamide is given. What is its corresponding molecular formula?
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C22H27ClN4O2
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