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 7-(pyridin-2-yloxymethyl)-5-pyridin-3-ylsulfonyl-6,7-dihydro-4H-pyrazolo[1,5-a]pyrazine into its molecular formula.
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C17H17N5O3S
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