You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named propan-2-yl 2-[[2-[2-(6-methoxy-1-benzofuran-3-yl)acetyl]oxyacetyl]amino]-6-methyl-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate by IUPAC nomenclature, provide its molecular formula.
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C26H29NO7S
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