You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (3R)-N-[(4-methoxyphenyl)methyl]-5-oxo-1-[1-(2,2,2-trifluoroethyl)pyrazol-4-yl]pyrrolidine-3-carboxamide into its molecular formula.
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C18H19F3N4O3
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