You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (4Z)-5-(3-chlorophenyl)-4-[hydroxy-(2-methyl-2,3-dihydro-1-benzofuran-5-yl)methylidene]-1-(2-morpholin-4-ylethyl)pyrrolidine-2,3-dione by IUPAC nomenclature, provide its molecular formula.
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C26H27ClN2O5
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