You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-[(4-ethyl-5-pyridin-4-yl-1,2,4-triazol-3-yl)sulfanyl]-N-(2-methylpropylcarbamoyl)acetamide into molecular formula.
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C16H22N6O2S
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