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system
Name the molecular formula for the molecule established as 3-[[1-[(1-amino-2-methyl-1-oxopropan-2-yl)carbamoyl]cyclobutanecarbonyl]amino]-4-oxo-5-(2,3,5,6-tetrafluorophenoxy)pentanoic acid using the IUPAC nomenclature.
user
C21H23F4N3O7
assistant