You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 2-[[2-[2-[[2-amino-3-(4-hydroxyphenyl)propanoyl]amino]propanoylamino]-3-carboxypropanoyl]amino]butanedioic acid .
user
C20H26N4O10
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