You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (4R,5R)-5-[5-(diazenylmethyl)-4-(hydroxyamino)pyrrolo[2,3-d]pyrimidin-7-yl]-2-(hydroxymethyl)-4-methoxy-4-methyloxolan-3-ol by IUPAC nomenclature, provide its molecular formula.
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C14H20N6O5
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