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 1-methyl-5-[[3-(4-propan-2-ylphenyl)-1,2,4-oxadiazol-5-yl]methyl]pyrazolo[3,4-d]pyrimidin-4-one into molecular formula.
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C18H18N6O2
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