You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (S)-4-chloro-2-fluoro-N-[7-[(5-fluoropyridin-2-yl)methoxy]-2-oxospiro[1H-indole-3,1'-cyclobutane]-5-yl]benzenesulfinamide into its molecular formula.
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C23H18ClF2N3O3S
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