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 [(3R)-1-(7-propan-2-yl-[1,2,4]triazolo[1,5-a]pyrimidine-5-carbonyl)piperidin-3-yl]-pyridin-3-ylmethanone is given. What is its corresponding molecular formula?
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C20H22N6O2
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