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 N-[(2S)-2-(2-chlorophenyl)-2-pyrrolidin-1-ylethyl]-2-(2-thiophen-3-yl-1,3-thiazol-4-yl)acetamide into molecular formula.
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C21H22ClN3OS2
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