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-[(4-chlorophenyl)methyl]-2-[5-(hydroxymethyl)-2-[(4-methylphenyl)methylsulfanyl]imidazol-1-yl]acetamide into molecular formula.
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C21H22ClN3O2S
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