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 6-hydroxy-5-[(2S)-2-(5-methylfuran-2-yl)-2,3-dihydro-1H-1,5-benzodiazepin-4-yl]-1,3-thiazine-2,4-dione is given. What is its corresponding molecular formula?
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C18H15N3O4S
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