You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (E)-3-[3-(2,4-dichlorophenyl)-6-methoxy-7-methyl-1-benzofuran-5-yl]-1-(2-methylpiperidin-1-yl)but-2-en-1-one into its molecular formula.
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C26H27Cl2NO3
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