You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (1S)-1-[2-[2-(propan-2-ylamino)pyrimidin-4-yl]-3,4-dihydro-1H-isoquinolin-6-yl]ethanol into its molecular formula.
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C18H24N4O
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