You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-[2-(tert-butylamino)-2-oxoethyl]-4-methyl-2-oxo-6-thia-1,8-diazatricyclo[7.5.0.03,7]tetradeca-3(7),4,8-triene-5-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C19H26N4O3S
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