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 (E,4R,5R)-5-[(4-cyanophenyl)carbamoyloxy]-5-(3,5-dibromo-2-hydroxyphenyl)-4-methylpent-2-enoic acid using the IUPAC nomenclature.
user
C20H16Br2N2O5
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