You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[3-(1,3-benzothiazol-2-yl)-6-benzyl-5,7-dihydro-4H-thieno[2,3-c]pyridin-2-yl]acetamide into molecular formula.
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C23H21N3OS2
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