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Name the molecular formula for the molecule established as 8-tert-butyl-3-[2-oxo-2-[3-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-3-yl)piperidin-1-yl]ethyl]-1,3-diazaspiro[4.5]decane-2,4-dione using the IUPAC nomenclature.
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C26H40N6O3
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