You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (2S)-2-[[9-[(2S,3R,4S,5R)-3,4-dihydroxy-5-(phosphonooxymethyl)oxolan-2-yl]purin-6-yl]amino]butanedioic acid by IUPAC nomenclature, provide its molecular formula.
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C14H18N5O11P
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