You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (1R)-2-[[4,8-bis(methylamino)-6-(propylamino)pyrimido[5,4-d]pyrimidin-2-yl]amino]cyclohexan-1-ol into its molecular formula.
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C17H28N8O
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