You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 8-cyclopentyl-5-methyl-6-(4-methylphenyl)-2-[(5-piperazin-1-ylpyridin-2-yl)amino]pyrido[2,3-d]pyrimidin-7-one is given. What is its corresponding molecular formula?
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C29H33N7O
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