You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2S,4R)-4-hydroxy-N-[(2S)-3-(4-hydroxyphenyl)-2-[3-(4-hydroxyphenyl)propanoylamino]propanoyl]pyrrolidine-2-carboxamide into its molecular formula.
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C23H27N3O6
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