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 tert-butyl 4-[4-iodo-5-methyl-3-[8-[methyl(oxetan-3-yl)amino]-5-azaspiro[3.5]nonan-5-yl]pyrazol-1-yl]piperidine-1-carboxylate is given. What is its corresponding molecular formula?
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C26H42IN5O3
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