You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule N,N-dimethyl-4-[[[2-pyridin-4-yl-6-(trifluoromethyl)pyrimidin-4-yl]amino]methyl]benzamide into molecular formula.
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C20H18F3N5O
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