You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (E)-3-[6-methoxy-3-(4-methoxyphenyl)-7-methyl-1-benzofuran-5-yl]-N-(2-methoxyphenyl)but-2-enamide into its molecular formula.
user
C28H27NO5
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