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-[2-[3-(1,3-benzothiazol-2-yl)piperidin-1-yl]-2-oxoethyl]-N-(2-methylphenyl)methanesulfonamide into molecular formula.
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C22H25N3O3S2
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