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 (E)-N-[(1S)-1-(4-chlorophenyl)-2-oxo-2-[[(3S)-1,1,1-trifluoro-4-methyl-2-oxopentan-3-yl]amino]ethyl]-3-(3,4-dichlorophenyl)prop-2-enamide into molecular formula.
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C23H20Cl3F3N2O3
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