You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule (2S)-N-[4-(3-chloro-4-methoxyphenyl)-1,3-thiazol-2-yl]-1-(thiophene-2-carbonyl)pyrrolidine-2-carboxamide into molecular formula.
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C20H18ClN3O3S2
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