You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(7S)-N-[2-(dimethylamino)ethyl]-5-[(1-methylpyrazol-4-yl)methyl]-4,6,7,8-tetrahydropyrazolo[1,5-a][1,4]diazepine-7-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
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C17H27N7O
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