You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (E)-N-[4-[(6-chloro-2-oxo-3H-indol-1-yl)methyl]phenyl]-3-(5-fluoropyridin-3-yl)prop-2-enamide into its molecular formula.
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C23H17ClFN3O2
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