You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 3-[[1-[4-[(3-chlorophenyl)methyl]-3-oxopiperazin-1-yl]cyclopentanecarbonyl]amino]-4-oxo-5-(2,3,5,6-tetrafluorophenoxy)pentanoic acid by IUPAC nomenclature, provide its molecular formula.
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C28H28ClF4N3O6
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