You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 1-[(2R,6R)-2,6-dimethylpiperidin-1-yl]-2-[[5-methyl-2-(4-methylsulfanylphenyl)-1,3-oxazol-4-yl]methylsulfanyl]ethanone into molecular formula.
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C21H28N2O2S2
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