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 [4-(2-cyanophenyl)phenyl]methyl 5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidine-2-carboxylate into molecular formula.
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C22H17N5O2
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