You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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(1S,2S,4R)-2-(hydroxymethyl)-4-(4-methylpyrrolo[2,3-d]pyrimidin-7-yl)cyclopentan-1-ol is the IUPAC name of a molecule. Please give its molecular formula.
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C13H17N3O2
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