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system
Name the molecular formula for the molecule established as tert-butyl 7-[(5R)-5-(methylsulfonyloxymethyl)-2-oxo-1,3-oxazolidin-3-yl]-1,2,4,5-tetrahydro-3-benzazepine-3-carboxylate using the IUPAC nomenclature.
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C20H28N2O7S
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