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)-4-[(5-chlorothiophene-2-carbonyl)amino]-1-(6-methyl-4,5,7,8-tetrahydrothieno[2,3-d]azepine-2-carbonyl)pyrrolidine-2-carboxylic acid is given. What is its corresponding molecular formula?
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C20H22ClN3O4S2
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