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 2-amino-1-[3-(aminomethoxy)-3-methylbutyl]-8-bromo-9-[(2R)-2-hydroxy-2-(5-hydroxy-1,3,2-dioxaphosphinan-4-yl)ethyl]purin-6-one is given. What is its corresponding molecular formula?
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C16H26BrN6O6P
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