You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 5-[2-(5-fluoropyridin-3-yl)pyrrolidin-1-yl]-N-[(2S)-2-hydroxycyclopentyl]pyrazolo[1,5-a]pyrimidine-3-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C21H23FN6O2
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