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-[4-(2,2-dimethylpropyl)piperazin-1-yl]-2-[2-(phenoxymethyl)-1,3-thiazol-4-yl]ethanone into molecular formula.
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C21H29N3O2S
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