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-chloro-5-(3,4-dimethoxyphenyl)-4-(2,6-dimethylpiperidin-1-yl)-6-methylthieno[2,3-d]pyrimidine into molecular formula.
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C22H26ClN3O2S
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