You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name (2S)-2-(but-3-enoxycarbonylamino)-3-[[2-hydroxy-4-[2-(pyrimidin-2-ylamino)ethoxy]benzoyl]amino]propanoic acid into its molecular formula.
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C21H25N5O7
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