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-fluorophenyl)methyl]-5-[3-[(4-methylpiperazin-1-yl)methyl]-1,2,4-oxadiazol-5-yl]piperidin-2-one is given. What is its corresponding molecular formula?
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C20H26FN5O2
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