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 [2-(4-bromoanilino)-2-oxoethyl] 1-oxo-2,3-dihydropyrrolo[2,1-b][1,3]benzothiazole-3a-carboxylate into molecular formula.
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C19H15BrN2O4S
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