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-[3-hydroxy-3-[(3-methyl-1,2,4-oxadiazol-5-yl)methyl]piperidin-1-yl]-3-(5-methylpyridin-3-yl)propan-1-one is given. What is its corresponding molecular formula?
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C18H24N4O3
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