You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-[3-(diethylamino)propyl]-2-(3-ethoxy-4-phenylmethoxyphenyl)-3-(furan-2-carbonyl)-4-hydroxy-2H-pyrrol-5-one by IUPAC nomenclature, provide its molecular formula.
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C31H36N2O6
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