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 6-tert-butyl-8-[1-(4-fluorophenyl)ethylamino]-2H-[1,2,4]triazolo[4,3-a]pyrazin-3-one into molecular formula.
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C17H20FN5O
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