You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 4-[4-[(5,6-dimethylbenzimidazol-1-yl)methyl]piperidin-1-yl]sulfonyl-3,5-dimethyl-1,2-oxazole into molecular formula.
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C20H26N4O3S
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