You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule (2,6-dimethylpyridin-3-yl)-[4-[(3R)-1,1-dioxothiolan-3-yl]piperazin-1-yl]methanone into molecular formula.
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C16H23N3O3S
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