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Name the molecular formula for the molecule established as (3R)-N-(4-bromo-2,6-dimethylphenyl)-2,4-dioxo-3-[(1R)-3-oxo-1H-2-benzofuran-1-yl]-4-pyridin-4-ylbutanamide using the IUPAC nomenclature.
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C25H19BrN2O5
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