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-4-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-N-(2,2,6,6-tetramethylpiperidin-4-yl)pyrimido[5,4-d]pyrimidin-8-amine into molecular formula.
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C22H32ClN7O2
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