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 6-chloro-4-[(2R,6R)-2,6-dimethyl-4-prop-2-enoylpiperazin-1-yl]-7-methyl-1-(4-methyl-2-propan-2-ylpyridin-3-yl)pyrido[2,3-d]pyrimidin-2-one into molecular formula.
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C26H31ClN6O2
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