You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named ethyl N-[2-(6-oxabicyclo[3.2.1]octa-1(8),2,4-trien-4-ylmethyl)-1-oxo-3H-isoindol-4-yl]carbamate by IUPAC nomenclature, provide its molecular formula.
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C19H18N2O4
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