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 ethyl 4-[[3-[(3-methylfuran-2-yl)methyl]imidazo[4,5-b]pyridin-2-yl]amino]piperidine-1-carboxylate is given. What is its corresponding molecular formula?
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C20H25N5O3
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