You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 4-fluoro-N-[2-phenyl-1-pyridin-2-yl-1-[3-(trifluoromethyl)phenyl]ethyl]-3-(trifluoromethyl)benzamide into molecular formula.
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C28H19F7N2O
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