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 2-(3,5-dimethoxy-N-[3-(1-methylpyrrol-3-yl)quinoxalin-6-yl]anilino)-N-pyridin-4-ylacetamide into its molecular formula.
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C28H26N6O3
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