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 2-[(1S)-1-[(2S)-2-(2,4-dimethoxyphenyl)pyrrolidin-1-yl]ethyl]-5-thiophen-2-yl-1,3,4-oxadiazole is given. What is its corresponding molecular formula?
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C20H23N3O3S
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