You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 3-fluoro-5-[4-[(4S,5S)-5-hydroxy-6-oxo-4-(trifluoromethyl)-2,4,5,7-tetrahydropyrazolo[3,4-b]pyridin-3-yl]piperidin-1-yl]pyridine-2-carbonitrile into its molecular formula.
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C18H16F4N6O2
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