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 [[(2R)-2-(6-aminopurin-9-yl)-3,4-dihydroxy-2,3-dihydrofuran-5-yl]methoxy-phenylmethoxyphosphoryl]methyl-phenylmethoxyphosphinic acid is given. What is its corresponding molecular formula?
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C25H27N5O9P2
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