You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named [2-(2,3-dihydroindol-1-yl)-2-oxoethyl] (2S)-2-[(5,6-dimethyl-4-oxo-3H-thieno[2,3-d]pyrimidin-2-yl)methylsulfanyl]propanoate by IUPAC nomenclature, provide its molecular formula.
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C22H23N3O4S2
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