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 N-[[2-(4-methylpiperazin-1-yl)pyridin-3-yl]methyl]-2-oxo-6-(trifluoromethyl)-3H-pyridine-3-carboxamide is given. What is its corresponding molecular formula?
user
C18H20F3N5O2
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