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 2-(3-chlorophenyl)-5-[hydroxy-[(5-methylspiro[2.3]hexan-5-yl)amino]methyl]-6,7-dihydro-4H-pyrazolo[1,5-a]pyrazine-3-carboxamide into its molecular formula.
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C21H26ClN5O2
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