You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-[3-(2-oxopyrrolidin-1-yl)propyl]-2-pyrazin-2-yl-1,3-thiazole-4-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C15H17N5O2S
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