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 1-[2-oxo-2-(3-quinolin-8-yloxypyrrolidin-1-yl)ethyl]pyrrolidine-2,5-dione is given. What is its corresponding molecular formula?
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C19H19N3O4
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