You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule N,N-dimethyl-6,6-dioxo-2,3,4a,5,7,7a-hexahydrothieno[3,4-b][1,4]oxazine-4-sulfonamide into molecular formula.
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C8H16N2O5S2
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