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 methyl 2-[2-[2-(2,5-dioxopyrrolidin-1-yl)acetyl]imino-6-propan-2-yl-1,3-benzothiazol-3-yl]acetate is given. What is its corresponding molecular formula?
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C19H21N3O5S
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