You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S,5R)-N-(3-cyanophenyl)-4-[4-cyano-3-(trifluoromethyl)phenyl]-5-(trifluoromethyl)pyrrolidine-2-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
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C21H14F6N4O
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