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 (2R)-2-[[(2-methylpropan-2-yl)oxyamino]methyl]-N-[(6R)-4,7,7-trimethyl-5-oxo-1,4-thiazepan-6-yl]hexanamide is given. What is its corresponding molecular formula?
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C19H37N3O3S
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