You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (E)-7-[4-[(2,2-dichloro-2-fluoroacetyl)amino]-6-methoxy-7-methyl-3-oxo-1H-2-benzofuran-5-yl]hept-4-enoic acid is given. What is its corresponding molecular formula?
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C19H20Cl2FNO6
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