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 (2S,3R)-2-[[(2S,3R)-2-[[(2S)-2-amino-3-phenylpropanoyl]amino]-3-hydroxybutanoyl]amino]-3-hydroxybutanoic acid is given. What is its corresponding molecular formula?
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C17H25N3O6
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