You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as [(2R)-1-(2,4-difluoroanilino)-1-oxopropan-2-yl] (2S)-4-acetyl-2,3-dihydro-1,4-benzoxazine-2-carboxylate using the IUPAC nomenclature.
user
C20H18F2N2O5
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