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 2-[(4S)-4-(1H-indol-3-ylmethyl)-2,5-dioxoimidazolidin-1-yl]-N-(2,3,4-trifluorophenyl)acetamide into molecular formula.
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C20H15F3N4O3
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