You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule [(2R,3R,4R,5R)-5-[2-[(4-aminocyclohexyl)amino]-6-(2,2-diphenylethylamino)purin-9-yl]-4-formyloxy-2-(2-methyltetrazol-5-yl)oxolan-3-yl] formate into molecular formula.
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C33H37N11O5
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