You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-hydroxy-3-[[1-[[2-oxo-2-(3-phenoxyanilino)ethyl]carbamoyl]cyclobutanecarbonyl]amino]-5-(2,3,5,6-tetrafluorophenoxy)pentanoic acid is the IUPAC name of a molecule. Please give its molecular formula.
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C31H29F4N3O8
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