You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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6-(6-chloro-3,4-dihydro-1H-isoquinolin-2-yl)-N-methyl-2-propan-2-ylpyrimidin-4-amine is the IUPAC name of a molecule. Please give its molecular formula.
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C17H21ClN4
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