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 2-[(2S)-butan-2-yl]-N-(5-methyl-1,3,4-thiadiazol-2-yl)-1,3-dioxoisoindole-5-carboxamide into molecular formula.
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C16H16N4O3S
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