You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name N-[6-[[2-(2,6-difluorophenyl)-5-oxo-6,7-dihydropyrrolo[3,4-b]pyridin-4-yl]methyl]pyridin-3-yl]-1,1-difluoromethanesulfonamide into its molecular formula.
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C20H14F4N4O3S
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