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 (3S)-3-methyl-4-[4-[3-(pyrazin-2-ylamino)indazol-1-yl]pyridin-2-yl]piperazine-1-carboxylate is given. What is its corresponding molecular formula?
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C26H30N8O2
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