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 N-[(2-tert-butyltetrazol-5-yl)methyl]-4-[(4-oxo-5,6,7,8-tetrahydro-3H-[1]benzothiolo[2,3-d]pyrimidin-2-yl)methyl]piperazine-1-carboxamide is given. What is its corresponding molecular formula?
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C22H31N9O2S
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