You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 2-(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)-1-[(3R)-3-ethylsulfanylazepan-1-yl]ethanone into its molecular formula.
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C17H25N5OS
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