You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule methyl 4-[4-(4-acetamidophenoxy)-3,5-dichloroanilino]-1-(2-hydroxyethyl)-5-oxo-2H-pyrrole-3-carboxylate into molecular formula.
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C22H21Cl2N3O6
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