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 (2S)-3-(1H-indol-3-yl)-2-[3-(2,3,5-trimethyl-7-oxofuro[3,2-g]chromen-6-yl)propanoylamino]propanoate is given. What is its corresponding molecular formula?
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C28H25N2O6-
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