You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-(4-methoxyphenyl)-N-[6-[2-(2-oxopyrrolidin-1-yl)ethoxy]-3-[3-(trifluoromethyl)phenyl]pyrazin-2-yl]acetamide into its molecular formula.
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C26H25F3N4O4
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