You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-[(4-chlorophenyl)methyl]-6-[1-(1,3-dimethylpyrazol-4-yl)sulfonylpiperidin-4-yl]pyridine into molecular formula.
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C22H25ClN4O2S
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