You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 2-[[2-[2-[[2-amino-3-(4-hydroxyphenyl)propanoyl]amino]propanoylamino]-4-methylpentanoyl]amino]-3-(4-hydroxyphenyl)propanoic acid is given. What is its corresponding molecular formula?
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C27H36N4O7
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